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rev. d ? 15-nov-01 1 1. features mpegi/ii-layer 3 hardwired decoder ? stand-alone mp3 decoder ? 48, 44.1, 32, 24, 22.05, 16 khz sampling freq. ? separated digital volume control on left and right channels (software control using 31 steps) ? bass, medium, and treble control (31 steps) ? bass boost sound effect. ? ancillary data extraction ? ?crc error? and ?mpeg frame synchronization? indicators programmable audio output for interfacing with common audio dac available on the market ? pcm format compatible ? i 2 s format compatible 8-bit mcu c51 core based (f max = 20 mhz) 2304 bytes of internal ram 64 kbytes of code memory ? flash: t89c51snd1, rom: t83c51snd1 4 kbytes of boot flash memory (t89c51snd1) ? isp: download from usb or uart to any external memory cards usb rev 1.1 controller ?? full speed ? data transmission built-in pll ? mp3 audio clocks ? usb clock multimediacard ? interface compatibility atmel dataflash ? spi interface compatibility ide/atapi interface 2 channels 10-bit adc, 8khz (8 true bit) ? battery voltage monitoring ? voice recording controlled by software up to 44 bits of general purpose i/os for: ? 4-bit interrupt keyboard port for a 4 x n matrix ? smartmedia ? software interface standard two 16-bit timers/counters hardware watchdog timer standard full duplex uart with baud rate generator 2-wire master and slave modes controller spi master and slave modes controller power management ? power-on reset ? software programmable mcu clock ? idle mode, power-down mode operating conditions: ? 3v, 10%, 25 ma typical operating at 25 c ? -40 c to +85 c packages ? tqfp80, plcc84 (development board) ? dice single chip microcontroller with mp3 decoder and man machine interface t8xc51snd1
2 t8xc51snd1 rev. d ? 15-nov-01 2. description the t8xc51snd1 product is a fully integrated stand-alone hardwired mpegi/ii-layer 3 decoder with a c51 microcontroller core handling data flow and mp3-player control. the t89c51snd1 includes 64 kbytes of flash memory and allows in system pro- gramming through an embedded 4 kbytes of boot flash memory. the t83c51snd1 includes 64 kbytes of rom memory. the t8xc51snd1 includes 2304 bytes of ram memory. the t8xc51snd1 provides all necessary features for man machine interface like tim- ers, keyboard port, serial or parallel interface (usb, 2-wire, spi, ide), adc input, i 2 s output, and all external memory interface (nand or nor flash, smartmedia, multimedia). 3. typical applications mp3-player pda, camera, mobile phone mp3 car audio/multimedia mp3 home audio/multimedia mp3
3 t8xc51snd1 rev. d ? 15-nov-01 4. pin description 4.1 pinouts figure 1. t8xc51snd1 80-pin qfp package t89c51snd1-ro (flash) t83c51snd1-ro (rom) p0.3/ad3 p0.4/ad4 p0.5/ad5 vss vdd p0.6/ad6 p0.7/ad7 p2.0/a8 p2.1/a9 p3.1/txd p3.2/int0# p3.3/int1# p3.4/t0 p3.0/rxd 1 2 3 4 5 6 7 8 13 11 10 p2.2/a10 p2.3/a11 p2.4/a12 p2.6/a14 p2.5/a13 p2.7/a15 mclk mdat mcmd p0.2/ad2 p0.1/ad1 p0.0/ad0 pvss vss x2 x1 tst# vss 9 12 14 15 16 p4.3/ss# p4.2/sck p4.1/mosi p4.0/miso vss vdd rst sclk dsel dclk dout ain1 ain0 arefn arefp avss avdd p3.7/rd# p3.6/wr# p3.5/t1 vdd p1.0/kin0 p1.1/kin1 p1.2/kin2 p1.3/kin3 p1.4 p1.5 p1.7/sda filt pvdd vdd p1.6/scl 17 18 19 20 21 22 23 24 25 26 27 28 33 31 30 29 32 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 53 51 50 49 52 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 73 71 70 69 72 74 75 76 77 78 79 80 ale isp# uvdd uvss p5.0 p5.1 p4.7 p4.6 d- d+ p5.3 p5.2 vss vdd p4.5 p4.4
4 t8xc51snd1 rev. d ? 15-nov-01 figure 2. t8xc51snd1 84-pin plcc package 4.2 signals all the t8xc51snd1 signals are detailed by functionality in table 1 to table 14. table 1. ports signal description t89c51snd1-sr (flash) p0.3/ad3 p0.4/ad4 p0.5/ad5 vss vdd p0.6/ad6 p0.7/ad7 p2.0/a8 p2.1/a9 p3.3/int1# p3.4/t0 p3.5/t1 p3.6/wr# p3.2/int0# 65 64 63 62 61 60 59 58 55 56 57 12 13 14 15 16 17 22 20 19 33 34 35 36 37 4 3 2 1 84 83 82 81 80 79 78 nc p2.3/a11 p2.4/a12 p2.6/a14 p2.5/a13 p2.7/a15 mclk mdat mcmd p0.2/ad2 p0.1/ad1 p5.0 pavss vss x2 nc x1 p3.1/txd 18 21 23 24 25 38 39 40 41 42 69 68 67 66 70 5 6 7 8 9 p4.3/ss# p4.2/sck p4.1/mosi p4.0/miso vss vdd rst sclk dsel dclk dout ain1 ain0 arefn arefp avss avdd vss vdd p3.7/rd# p3.0/rxd p1.0/kin0 p1.1/kin1 p1.2/kin2 p1.3/kin3 p1.4 p1.5 p1.7/sda filt pavdd vdd p1.6/scl 26 43 tst# p5.2 p0.0/ad0 77 p2.2/a10 54 ale isp# nc p5.1 p4.7 p4.6 76 75 10 11 28 27 29 30 31 32 uvdd uvss 44 45 46 47 48 49 50 51 52 53 74 73 72 71 p4.4 p4.5 vdd vss d- d+ nc p5.3 signal name type description alternate function p0.7:0 i/o port 0 p0 is an 8-bit open-drain bidirectional i/o port. port 0 pins that have 1s written to them float and can be used as high impedance inputs. to avoid any parasitic current consumption, floating p0 inputs must be polarized to v dd or v ss . ad7:0 p1.7:0 i/o port 1 p1 is an 8-bit bidirectional i/o port with internal pull-ups. kin3:0 scl sda
5 t8xc51snd1 rev. d ? 15-nov-01 table 2. clock signal description table 3. timer 0 and timer 1 signal description p2.7:0 i/o port 2 p2 is an 8-bit bidirectional i/o port with internal pull-ups. a15:8 p3.7:0 i/o port 3 p3 is an 8-bit bidirectional i/o port with internal pull-ups. rxd txd int0# int1# t0 t1 wr# rd# p4.7:0 i/o port 4 p4 is an 8-bit bidirectional i/o port with internal pull-ups. miso mosi sck ss# p5.3:0 i/o port 5 p5 is a 4-bit bidirectional i/o port with internal pull-ups. - signal name type description alternate function x1 i input to the on-chip inverting oscillator amplifier to use the internal oscillator, a crystal/resonator circuit is connected to this pin. if an external oscillator is used, its output is connected to this pin. x1 is the clock source for internal timing. - x2 o output of the on-chip inverting oscillator amplifier to use the internal oscillator, a crystal/resonator circuit is connected to this pin. if an external oscillator is used, leave x2 unconnected. - filt i pll low pass filter input filt receives the rc network of the pll low pass filter. - signal name type description alternate function int0# i timer 0 gate input int0# serves as external run control for timer 0, when selected by gate0 bit in tcon register. external interrupt 0 int0# input sets ie0 in the tcon register. if bit it0 in this register is set, bit ie0 is set by a falling edge on int0#. if bit it0 is cleared, bit ie0 is set by a low level on int0#. p3.2 int1# i timer 1 gate input int1# serves as external run control for timer 1, when selected by gate1 bit in tcon register. external interrupt 1 int1# input sets ie1 in the tcon register. if bit it1 in this register is set, bit ie1 is set by a falling edge on int1#. if bit it1 is cleared, bit ie1 is set by a low level on int1#. p3.3 signal name type description alternate function
6 t8xc51snd1 rev. d ? 15-nov-01 table 4. audio interface signal description table 5. usb controller signal description table 6. mutimediacard interface signal description t0 i timer 0 external clock input when timer 0 operates as a counter, a falling edge on the t0 pin increments the count. p3.4 t1 i timer 1 external clock input when timer 1 operates as a counter, a falling edge on the t1 pin increments the count. p3.5 signal name type description alternate function dclk o dac data bit clock - dout o dac audio data - dsel o dac channel select signal dsel is the sample rate clock output. - sclk o dac system clock sclk is the oversampling clock synchronized to the digital audio data (dout) and the channel selection signal (dsel). - signal name type description alternate function d+ i/o usb positive data upstream port this pin requires an external 1.5 k ? pull-up to v dd for full speed operation. - d- i/o usb negative data upstream port - signal name type description alternate function mclk o mmc clock output data or command clock transfer. - mcmd i/o mmc command line bidirectional command channel used for card initialization and data transfer commands. to avoid any parasitic current consumption, unused mcmd input must be polarized to v dd or v ss . - mdat i/o mmc data line bidirectional data channel. to avoid any parasitic current consumption, unused mdat input must be polarized to v dd or v ss . - signal name type description alternate function
7 t8xc51snd1 rev. d ? 15-nov-01 table 7. uart signal description table 8. spi controller signal description table 9. 2-wire controller signal description table 10. a/d converter signal description signal name type description alternate function rxd i/o receive serial data rxd sends and receives data in serial i/o mode 0 and receives data in serial i/o modes 1, 2 and 3. p3.0 txd o transmit serial data txd outputs the shift clock in serial i/o mode 0 and transmits data in serial i/o modes 1, 2 and 3. p3.1 signal name type description alternate function miso i/o spi master input slave output data line when in master mode, miso receives data from the slave peripheral. when in slave mode, miso outputs data to the master controller. p4.0 mosi i/o spi master output slave input data line when in master mode, mosi outputs data to the slave peripheral. when in slave mode, mosi receives data from the master controller. p4.1 sck i/o spi clock line when in master mode, sck outputs clock to the slave peripheral. when in slave mode, sck receives clock from the master controller. p4.2 ss# i spi slave select line when in controlled slave mode, ss# enables the slave mode. p4.3 signal name type description alternate function scl i/o 2-wire serial clock when 2-wire controller is in master mode, scl outputs the serial clock to the slave peripherals. when 2-wire controller is in slave mode, scl receives clock from the master controller. p1.6 sda i/o 2-wire serial data sda is the bidirectional 2-wire data line. p1.7 signal name type description alternate function ain1:0 i a/d converter analog inputs - arefp i analog positive voltage reference input - arefn i analog negative voltage reference input this pin is internally connected to avss. -
8 t8xc51snd1 rev. d ? 15-nov-01 table 11. keypad interface signal description table 12. external access signal description table 13. system signal description signal name type description alternate function kin3:0 i keypad input lines holding one of these pins high or low for 24 oscillator periods triggers a keypad interrupt. p1.3:0 signal name type description alternate function a15:8 i/o address lines upper address lines for the external bus. multiplexed higher address and data lines for the ide interface. p2.7:0 ad7:0 i/o address/data lines multiplexed lower address and data lines for the external memory or the ide interface. p0.7:0 ale o address latch enable output ale signals the start of an external bus cycle and indicates that valid address information is available on lines a7:0. an external latch is used to demultiplex the address from address/data bus. - isp# i/o isp enable input this signal must be held to gnd through a pull-down resistor at the falling reset to force execution of the internal bootloader. - rd# o read signal read signal asserted during external data memory read operation. p3.7 wr# o write signal write signal asserted during external data memory write operation. p3.6 signal name type description alternate function rst i reset input holding this pin high for 64 oscillator periods while the oscillator is running resets the device. the port pins are driven to their reset conditions when a voltage lower than v il is applied, whether or not the oscillator is running. this pin has an internal pull-down resistor which allows the device to be reset by connecting a capacitor between this pin and v dd . asserting rst when the chip is in idle mode or power-down mode returns the chip to normal operation. - tst# i test input test mode entry signal. this pin must be set to v dd . -
9 t8xc51snd1 rev. d ? 15-nov-01 table 14. power signal description signal name type description alternate function vdd pwr digital supply voltage connect these pins to +3v supply voltage. - vss gnd circuit ground connect these pins to ground. - avdd pwr analog supply voltage connect this pin to +3v supply voltage. - avss gnd analog ground connect this pin to ground. - pvdd pwr pll supply voltage connect this pin to +3v supply voltage. - pvss gnd pll circuit ground connect this pin to ground. - uvdd pwr usb supply voltage connect this pin to +3v supply voltage. - uvss gnd usb ground connect this pin to ground. -
10 t8xc51snd1 rev. d ? 15-nov-01 4.3 internal pin structure table 15. detailed internal pin structure notes: 1. for information on resistors value, input/output levels, and drive capability, refer to the section ? dc characteristics ? , page 34. 2. when the 2-wire controller is enabled, p 1 , p 2 , and p 3 transistors are disabled allowing pseudo open-drain structure. 3. in port 2, p 1 transistor is continuously driven when outputting a high level bit address (a15:8). circuit 1 type pins input tst# input/output rst input/output p1 2 p2 3 p3 p4 p53:0 input/output p0 mcmd mdat isp# output ale sclk dclk dout dsel mclk input/output d+ d- r tst vdd r rst vss p vdd watchdog output p 3 vss n p 1 vdd vdd 2 osc latch output periods p 2 vdd vss n p vdd vss n p vdd d+ d-
11 t8xc51snd1 rev. d ? 15-nov-01 5. block diagram figure 3. t8xc51snd1 block diagram 8-bit internal bus clock & pll unit c51 (x2 core) ram 2304 bytes flash rom interrupt handler unit filt x2 x1 mp3 decoder unit 2-wire controller mmc interface i/o scl sda mdat p0-p5 10-bit a to d converter vss vdd keyboard interface kin3:0 i 2 s / pcm audio interface avss avdd 1 alternate function of port 1 ain1:0 ports int0# int1# mosi miso 3 alternate function of port 3 4 alternate function of port 4 timers 0/1 t1 t0 spi / dataflash controller mclk mcmd sck rst aref dsel dclk sclk dout 64 kbytes usb controller d+ d- uart rxd txd ide interface ss# watchdog flash boot 4 kbytes isp# uvss uvdd & brg ale 33 33 3 3444411 1
12 t8xc51snd1 rev. d ? 15-nov-01 6. application information figure 4. t8xc51snd1 typical application with on-board atmel dataflash and 2-wire lcd ref. battery dout dclk dsel sclk p1.4 p1.5 ain0 mclk x1 x2 vss avss vrefp vrefn vdd avdd ain1 mdat mcmd mmc1 mmc2 audio dac rst lcd p1.7/sda p1.6/scl p1.1/kin1 p0.0 p0.1 p1.2/kin2 p1.3/kin3 p0.2 p0.3 p1.0/kin0 filt pvss dataflash p4.2/sck p4.0/si p4.1/so memories p4n t8xc51snd1 usb port d+ d- uvdd uvss
13 t8xc51snd1 rev. d ? 15-nov-01 figure 5. t8xc51snd1 typical application with on-board atmel dataflash and // lcd figure 6. t8xc51snd1 typical application with on-board ssfdc flash ref. battery dataflash dout dclk dsel sclk p1.4 p1.5 ain0 mclk x1 x2 vss avss vrefp vrefn vdd avdd ain1 mdat mcmd p4.2/sck p4.0/si p4.1/so mmc1 mmc2 audio dac rst p1.3 p1.0/kin0 p0.0 p0.1 p1.1/kin1 p1.2/kin2 p0.2 p0.3 p0.4 p0.5 p0.6 p0.7 lcd p1.7/sda p1.6/scl filt pvss memories p4.n t8xc51snd1 usb port d+ d- uvdd uvss ref. battery usb port smartmedia ssfdc memories or smartmedia cards dout dclk dsel sclk p3.4 p3.5 ain0 d+ mclk x1 x2 vss avss vrefp vrefn vdd avdd ain1 mdat mcmd p3.6/wr# p3.7/rd# mmc1 mmc2 audio dac rst d- p1.1/kin1 p0.0 p0.1 p1.2/kin2 p1.3/kin3 p0.2 p0.3 p1.0/kin0 filt pvss t8xc51snd1 p2 p0 p4.2 p4.4 p4.5 p4.6 p4.7 lcd p4.0 p4.1 uvdd uvss
14 t8xc51snd1 rev. d ? 15-nov-01 figure 7. t8xc51snd1 typical application with ide cd-rom drive ref. battery ide cd-rom dout dclk dsel sclk p3.4 p3.5 ain0 mclk x1 x2 vss avss vrefp vrefn vdd avdd ain1 mdat mcmd mmc1 mmc2 audio dac rst p4.2 p1.0/kin0 p0.0 p0.1 p1.1/kin1 p1.2/kin2 p0.2 p0.3 p4.4 p4.5 p4.6 p4.7 lcd p1.7/sda p1.6/scl filt pvss t8xc51snd1 p3.6/wr# p3.7/rd# p2 p0 p4.0 p4.1 usb port d+ d- uvdd uvss
15 t8xc51snd1 rev. d ? 15-nov-01 7. address spaces the t8xc51snd1 derivatives implement four different address spaces: program/code memory boot memory data memory special function registers (sfrs) 7.1 code memory the t89c51snd1 and t83c51snd1 implement 64 kbytes of on-chip program/code memory. the t83c51snd1 product provides the internal program/code memory in rom technology while the t89c51snd1 product provides it in flash technology. the flash memory increases eprom and rom functionality by in-circuit electrical erasure and programming. thanks to the internal charge pump, the high voltage needed for programming or erasing flash cells is generated on-chip using the standard vdd voltage. thus, the t89c51snd1 can be programmed using only one voltage and allows in application software programming commonly known as iap. hardware programming mode is also available using specific programming tool. 7.2 boot memory the t89c51snd1 implements 4 kbytes of on-chip boot memory provided in flash technology. this boot memory is delivered programmed with a standard boot loader software allowing in system programming commonly known as isp. it also contains some application programming interfaces routines commonly known as api allowing user to develop its own boot loader. 7.3 data memory the t89c51cc01 derivatives implement 2304 bytes of on-chip data ram. this memory is divided in two separate areas: 256 bytes of on-chip ram memory (standard c51 memory). 2048 bytes of on-chip expanded ram memory (eram accessible via movx instructions). 7.4 special function registers the special function registers (sfrs) of the t89c51cc01 derivatives fall into the cat- egories detailed in table 16 to table 32. the relative addresses of these sfrs are provided together with their reset values in table 33. in this table, the bit-addressable registers are identified by note 1.
16 t8xc51snd1 rev. d ? 15-nov-01 table 16. c51 core sfrs table 17. system management sfrs table 18. pll & system clock sfrs table 19. interrupt sfrs mnemonicaddname 76 5 432 10 acc e0h accumulator b f0h b register psw d0h program status word cy ac f0 rs1 rs0 ov f1 p sp 81h stack pointer dpl 82h data pointer low byte dph 83h data pointer high byte mnemonicaddname 76 5 432 10 pcon 87h power control smod1 smod0 - - gf1 gf0 pd idl auxr 8eh auxiliary register 0 - ext16 m0 dphdis xrs1 xrs0 extram ao auxr1 a2h auxiliary register 1 - - enboot - gf3 0 - dps nvers fbh version number nv7 nv6 nv5 nv4 nv3 nv2 nv1 nv0 mnemonicaddname 76 5 432 10 ckcon 8fh clock control - - - - - - - x2 pllcon e9h pll control r1 r0 - - pllres - pllen plock pllndiv eeh pll n divider - n6 n5 n4 n3 n2 n1 n0 pllrdiv efh pll r divider r9 r8 r7 r6 r5 r4 r3 r2 mnemonicaddname 76 5 432 10 ien0 a8h interrupt enable control 0 ea eaud emp3 es et1 ex1 et0 ex0 ien1 b1h interrupt enable control 1 - eusb - ekb eadc espi ei2c emmc iph0 b7h interrupt priority control high 0 - iphaud iphmp3 iphs ipht1 iphx1 ipht0 iphx0 ipl0 b8h interrupt priority control low 0 - iplaud iplmp3 ipls iplt1 iplx1 iplt0 iplx0 iph1 b3h interrupt priority control high 1 - iphusb - iphkb iphadc iphspi iphi2c iphmmc ipl1 b2h interrupt priority control low 1 - iplusb - iplkb ipladc iplspi ipli2c iplmmc
17 t8xc51snd1 rev. d ? 15-nov-01 table 20. port sfrs table 21. flash memory sfr table 22. timer sfrs table 23. mp3 decoder sfrs mnemonicaddname 76 5 432 10 p0 80h 8-bit port 0 p1 90h 8-bit port 1 p2 a0h 8-bit port 2 p3 b0h 8-bit port 3 p4 c0h 8-bit port 4 p5 d8h 4-bit port 5 mnemonicaddname 76 5 432 10 fcon d1h flash control fpl3 fpl2 fpl1 fpl0 fps fmod1 fmod0 fbusy mnemonicaddname 76 5 432 10 tcon 88h timer/counter 0 and 1 control tf1 tr1 tf0 tr0 ie1 it1 ie0 it0 tmod 89h timer/counter 0 and 1 modes gate1 c/t1# m11 m01 gate0 c/t0# m10 m00 tl0 8ah timer/counter 0 low byte th0 8ch timer/counter 0 high byte tl1 8bh timer/counter 1 low byte th1 8dh timer/counter 1 high byte wdtrst a6h watchdog timer reset wdtprg a7h watchdog timer program - - - - - wto2 wto1 wto0 mnemonicaddname 76 5 432 10 mp3con aah mp3 control mpen mpbbst crcen mskanc mskreq msklay msksyn mskcrc mp3sta c8h mp3 status mpan c mpreq errlay errsyn errcrc mpfs1 mpfs0 mpver mp3sta1 afh mp3 status 1 - - - mpfreq mpbreq - - -
18 t8xc51snd1 rev. d ? 15-nov-01 table 24. audio interface sfrs table 25. usb controller sfrs mp3dat ach mp3 data mpd7 mpd6 mpd5 mpd4 mpd3 mpd2 mpd1 mpd0 mp3anc adh mp3 ancillary data and7 and6 and5 and4 and3 and2 and1 and0 mp3vol 9eh mp3 audio volume control left - - - vol4 vol3 vol2 vol1 vol0 mp3vor 9fh mp3 audio volume control right - - - vor4 vor3 vor2 vor1 vor0 mp3bas b4h mp3 audio bass control - - - bas4 bas3 bas2 bas1 bas0 mp3med b5h mp3 audio medium control - - - med4 med3 med2 med1 med0 mp3tre b6h mp3 audio treble control - - - tre4 tre3 tre2 tre1 tre0 mp3clk ebh mp3 clock divider - - - mpcd4 mpcd3 mpcd2 mpcd1 mpcd0 mnemonicaddname 76 5 432 10 mnemonicaddname 76 5 432 10 audcon0 9ah audio control 0 just4 just3 just2 just1 just0 pol dsiz hlr audcon1 9bh audio control 1 src drqen msreq mudrn - dup1 dup0 auden audsta 9ch audio status sreq udrn aubusy - - - - - auddat 9dh audio data aud7 aud6 aud5 aud4 aud3 aud2 aud1 aud0 audclk ech audio clock divider - - - aucd4 aucd3 aucd2 aucd1 aucd0 mnemonicaddname 76 5 432 10 usbcon bch usb global control usbe suspclk sdrmwup - uprsm rmwupe confg fadden usbaddr c6h usb address fen uadd6 uadd5 uadd4 uadd3 uadd2 uadd1 uadd0 usbint bdh usb global interrupt - - wupcpu eorint sofint - - spint usbien beh usb global interrupt enable - - ewupcpu eeorint esofint - - espint uepnum c7h usb endpoint number - - - - - - epnum1 epnum0 uepconx d4h usb endpoint x control epen - - - dtgl epdir eptype1 eptype0 uepstax ceh usb endpoint x status dir - stallrq txrdy stlcrc rxsetup rxout txcmp ueprst d5h usb endpoint reset - - - - ep3rst ep2rst ep1rst ep0rst uepint f8h usb endpoint interrupt - - - - ep3int ep2int ep1int ep0int uepien c2h usb endpoint interrupt enable - - - - ep3inte ep2inte ep1inte ep0inte
19 t8xc51snd1 rev. d ? 15-nov-01 table 26. mmc controller sfrs table 27. ide interface sfr table 28. serial i/o port sfrs uepdatx cfh usb endpoint x fifo data fdat7 fdat6 fdat5 fdat4 fdat3 fdat2 fdat1 fdat0 ubyctx e2h usb endpoint x byte counter - byct6 byct5 byct4 byct3 byct2 byct1 byct0 ufnuml bah usb frame number low fnum7 fnum6 fnum5 fnum4 fnum3 fnum2 fnum1 fnum0 ufnumh bbh usb frame number high - - crcok crcerr - fnum10 fnum9 fnum8 usbclk eah usb clock divider - - - - - - usbcd1 usbcd0 mnemonicaddname 76 5 432 10 mnemonicaddname 76 5 432 10 mmcon0 e4h mmc control 0 drptr dtptr crptr ctptr mblock dfmt rfmt crcdis mmcon1 e5h mmc control 1 blen3 blen2 blen1 blen0 datdir daten respen cmden mmcon2 e6h mmc control 2 mmce n dcr ccr - - datd1 datd0 flowc mmsta deh mmc control and status - - cbusy crc16s datfs crc7s respfs cflck mmint e7h mmc interrupt mcbi eori eoci eofi f2fi f1fi f2ei f1ei mmmsk dfh mmc interrupt mask mcbm eorm eocm eofm f2fm f1fm f2em f1em mmcmd ddh mmc command mc7 mc6 mc5 mc4 mc3 mc2 mc1 mc0 mmdat dch mmc data md7 md6 md5 md4 md3 md2 md1 md0 mmclk edh mmc clock divider mmcd 7 mmcd6 mmcd5 mmcd4 mmcd3 mmcd2 mmcd1 mmcd0 mnemonicaddname 76 5 432 10 dat16h f9h high order data byte d15 d14 d13 d12 d11 d10 d9 d8 mnemonicaddname 76 5 432 10 scon 98h serial control fe/sm 0 sm1 sm2 ren tb8 rb8 ti ri sbuf 99h serial data buffer saden b9h slave address mask saddr a9h slave address bdrcon 92h baud rate control brr tbck rbck spd src brl 91h baud rate reload
20 t8xc51snd1 rev. d ? 15-nov-01 table 29. spi controller sfrs table 30. 2-wire controller sfrs table 31. keyboard interface sfrs table 32. a/d controller sfrs mnemonicaddname 76 5 432 10 spcon c3h spi control spr2 spen ssdis mstr cpol cpha spr1 spr0 spsta c4h spi status spif wcol - modf - - - - spdat c5h spi data spd7 spd6 spd5 spd4 spd3 spd2 spd1 spd0 mnemonicaddname 76 5 432 10 sscon 93h synchronous serial control sscr2 sspe sssta sssto ssi ssaa sscr1 sscr0 sssta 94h synchronous serial status ssc4 ssc3 ssc2 ssc1 ssc0 0 0 0 ssdat 95h synchronous serial data ssd7 ssd6 ssd5 ssd4 ssd3 ssd2 ssd1 ssd0 ssadr 96h synchronous serial address ssa7 ssa6 ssa5 ssa4 ssa3 ssa2 ssa1 ssgc mnemonicaddname 76 5 432 10 kbcon a3h keyboard control kinl3 kinl2 kinl1 kinl0 kinm3 kinm2 kinm1 kinm0 kbsta a4h keyboard status kpde - - - kinf3 kinf2 kinf1 kinf0 mnemonicaddname 76 5 432 10 adcon f3h adc control - adidl aden adeoc adsst - - adcs adclk f2h adc clock divider - - - adcd4 adcd3 adcd2 adcd1 adcd0 addl f4h adc data low byte - - - - - - adat1 adat0 addh f5h adc data high byte adat9 adat8 adat7 adat6 adat5 adat4 adat3 adat2
21 t8xc51snd1 rev. d ? 15-nov-01 table 33. sfr addresses and reset values notes: 1. sfr registers with least significant nibble address equal to 0 or 8 are bit- addressable. 2. nvers reset value depends on the silicon version. 3. fcon register is only available in t89c51snd1 product. 4. fcon reset value is 00h in case of reset with hardware condition. 5. ckcon reset value depends on the x2b bit (programmed or unprogrammed) in the hardware byte. 0/8 1/9 2/a 3/b 4/c 5/d 6/e 7/f f8h uepint 0000 0000 dat16h xxxx xxxx nvers 2 1000 0010 ffh f0h b 1 0000 0000 adclk 0000 0000 adcon 0000 0000 addl 0000 0000 addh 0000 0000 f7h e8h pllcon 0000 1000 usbclk 0000 0000 mp3clk 0000 0000 audclk 0000 0000 mmclk 0000 0000 pllndiv 0000 0000 pllrdiv 0000 0000 efh e0h acc 1 0000 0000 ubyctlx 0000 0000 mmcon0 0000 0000 mmcon1 0000 0000 mmcon2 0000 0000 mmint 0000 0011 e7h d8h p5 1 xxxx 1111 mmdat 1111 1111 mmcmd 1111 1111 mmsta 0000 0000 mmmsk 1111 1111 dfh d0h psw 1 0000 0000 fcon 3 1111 0000 4 uepconx 0000 0000 ueprst 0000 0000 d7h c8h mp3sta 1 0000 0001 uepstax 0000 0000 uepdatx 0000 0000 cfh c0h p4 1 1111 1111 uepien 0000 0000 spcon 0001 0100 spsta 0000 0000 spdat xxxx xxxx usbaddr 1000 0000 uepnum 0000 0000 c7h b8h ipl0 1 x000 0000 saden 0000 0000 ufnuml 0000 0000 ufnumh 0000 0000 usbcon 0000 0000 usbint 0000 0000 usbien 0001 0000 bfh b0h p3 1 1111 1111 ien1 0000 0000 ipl1 0000 0000 iph1 0000 0000 mp3bas 0000 0000 mp3med 0000 0000 mp3tre 0000 0000 iph0 x000 0000 b7h a8h ien0 1 0000 0000 saddr 0000 0000 mp3con 0011 1111 mp3dat 0000 0000 mp3anc 0000 0000 mp3sta1 0100 0001 afh a0h p2 1 1111 1111 auxr1 xxxx 00x0 kbcon 0000 1111 kbsta 0000 0000 wdtrst 0000 1000 wdtprg 0000 1000 a7h 98h scon 0000 0000 sbuf xxxx xxxx audcon0 0000 1000 audcon1 1011 0010 audsta 1100 0000 auddat 1111 1111 mp3vol 0000 0000 mp3vor 0000 0000 9fh 90h p1 1 1111 1111 brl 0000 0000 bdrcon xxx0 0000 sscon 0000 0000 sssta 1111 1000 ssdat 1111 1111 ssadr 1111 1110 97h 88h tcon 1 0000 0000 tmod 0000 0000 tl0 0000 0000 tl1 0000 0000 th0 0000 0000 th1 0000 0000 auxr x000 1101 ckcon 0000 000x 5 8fh 80h p0 1 1111 1111 sp 0000 0111 dpl 0000 0000 dph 0000 0000 pcon xxxx 0000 87h 0/8 1/9 2/a 3/b 4/c 5/d 6/e 7/f reserved
22 t8xc51snd1 rev. d ? 15-nov-01 8. in system & in application programming 8.1 introduction as described in the section ? program/code memory ? of the t8xc51snd1 design guide, the t89c51snd1 implements a 4 kbytes flash boot memory. this boot memory is delivered programmed with a standard boot loader software allowing in system pro- gramming (isp). it also contains some application programming interface routines named api routines allowing in application programming (iap) by using user ? s own boot loader. 8.2 in system programming the isp boot process is divided in two different processes: the hardware and software boot process detailed in the following sections. 8.3.1 hardware boot process as detailed in figure 8 there are two hardware conditions that allow user executing the boot loader: the hardware and the programmed conditions. hardware condition the hardware condition is based on the isp# pin. when driving this pin to low level, the chip reset forces the execution of the boot loader software. the hardware condition takes precedence on the programmed condition and always allows in system recovery when user ? s memory has been corrupted. programmed condition the programmed condition is based on the boot loader jump bit (bljb) in the hard- ware security bytes (hsb). when this bit is programmed (by hardware or software programming mode), the chip reset forces the execution of the boot loader software. 8.4.2 software boot process whatever the physical medium may be, the boot loader software always starts execu- tion by testing fcon to know if execution comes from hardware or programmed condition. if it is from hardware condition, the atmel ? s boot loader is executed. if it is from programmed condition, the software boot vector (sbv) is used to build a 16-bit address, sbv content being the msb and the lsb being 00h. if this address is valid (< f000h), jump is done to this address to execute user ? s boot loader. otherwise jump is done to the atmel ? s boot loader. this implies that user ? s boot loader does not execute any code mapped from f000h to ffffh.
23 t8xc51snd1 rev. d ? 15-nov-01 figure 8. boot process algorithm hardware software hard cond? isp#= l? reset hard cond init enboot= 1 pc= f000h fcon= 00h prog cond? bljb= p? standard init enboot= 0 pc= 0000h fcon= f0h prog cond init enboot= 1 pc= f000h fcon= f0h user?s application process process hard cond? fcon= 00h? atmel?s boot loader user vector? sbv< f0h? user init pch= sbv pcl= 00h user?s boot loader
24 t8xc51snd1 rev. d ? 15-nov-01 8.5 serial boot loader 8.6.1 configuration the serial boot loader is based on the internal uart and needs only 3 pins: the txd and rxd pins of the uart and the vss pin. the data transmission format on the serial link must be set to 8 data bits with 1 stop bit. the baud rate is automatically recognized during the synchronization phase. 8.7.2 synchronization phase before any data may be sent to the boot loader, a synchronization must be achieved with the host so that both side converse at the same baud rate. this is done by sending the ? u ? character (ascii 35h) to the boot loader. the boot loader acknowledges the syn- chronization by responding the same ? u ? character. at this time, the boot loader is able to receive data, then all data received are echoed to the host. 8.8.3 command protocol definition the protocol is based on the intel ? hex type records. these records are composed of seven fields of ascii characters as detailed in table 34. all fields except sor (start of record) end eor (end of record) are ascii coded hexadecimal values. the sor field is always a ? : ? character. the eor field is always a carriage return (ascii 13h) fol- lowed by a line feed (ascii 0ah). the size field is the size of the data field. the address field is the address where to store data contained in the data field. the type field is the record type detailed in table 35. the data field contains the data and must never exceed 128 data bytes (256 ascii characters). the cksum field is the checksum computed on the size, address, type, data fields. table 34. hex record format error handling all received records that present a checksum error, a data length greater than 128 bytes or a bad type record are immediately acknowledged to the host by sending a ? x ? charac- ter followed by a crlf sequence. command description table 35. hex record commands sor size address type data cksum eor :nnaaaarrdd ? dd cc cr lf type size address description 00h 01h to 80h 0000h to ffffh program data program the data in the data field at the address contained in the address field. return ? . ? done. ? p ? not done. part protected (secured by level 1 or 2). 01h 00h 0000h end of file no operation. return ? . ?
25 t8xc51snd1 rev. d ? 15-nov-01 03h 02h xxxx block erase: data[0]= 01h data[1]= 00h erase block 0 from address 0000h to 1fffh. data[1]= 20h erase block 1 from address 2000h to 3fffh. data[1]= 40h erase block 2 from address 4000h to 7fffh. data[1]= 80h erase block 3 from address 8000h to bfffh. data[1]= c0h erase block 4 from address c000h to ffffh. return ? . ? done. ? p ? not done. part protected (secured by level 1 or 2). 01h xxxx reset software boot vector and boot status byte: data[0]= 04h set sbv to f0h and bsb to ffh. return ? . ? done. ? p ? not done. part protected (secured by level 1 or 2). 02h xxxx program software security bits: data[0]= 05h data[1]= 00h program level 1. disable flash programming. data[1]= 01h program level 2. disable flash programming & verifying. return ? . ? done. ? p ? not done. part protected (secured by level 1 or 2). 03h xxxx program software boot vector or boot status byte: data[0]= 06h data[1]= 00h program bsb with data[2]. data[1]= 01h program sbv with data[2]. return ? . ? done. ? p ? not done. part already protected (secured by level 2). 01h xxxx full chip erase: data[0]= 07h erase user memory from address 0000h to ffffh. set sbv to f0h and bsb to ffh. program software security to level 0. return ? . ? 03h xxxx program fuse bits: data[0]= 0ah data[1]= 04h data[2]= 00h program bljb bit. data[2]= 01h erase bljb bit. data[1]= 08h data[2]= 00h program x2 bit. data[2]= 01h erase x2 bit. return ? . ? done. ? p ? not done. part protected (secured by level 1 or 2). type size address description
26 t8xc51snd1 rev. d ? 15-nov-01 04h 05h xxxx read data: data[4]= 00h read data from address given by data[1:0] (start address) to address given by data[3:2] (end address). return ? aaaa=dd ? dd ? up to 16 data bytes by line. 05h xxxx blank check: data[4]= 01h check blanked data from address given by data[1:0] (start address) to address given by data[3:2] (end address). return ? . ? done. ? xxxx ? first address not blanked. 05h 02h xxxx read id: data[0]= 00h data[1]= 00h return manufacturer id. data[1]= 01h return device id 1. data[1]= 02h return device id 2. data[1]= 03h return device id 3. return ? xx ? selected id value. 02h xxxx read special bytes: data[0]= 07h data[1]= 00h return ssb. data[1]= 01h return bsb. data[1]= 02h return sbv. return ? xx ? selected byte value. 01h xxxx read hsb: data[0]= 0bh return hsb. return ? xx ? hsb value. 02h xxxx read boot id: data[0]= 0eh data[1]= 00h return boot id 1. data[1]= 01h return boot id 1. return ? xx ? selected id value. 01h xxxx read boot loader version: data[0]= 0fh return boot loader version. return ? xx ? boot loader version. type size address description
27 t8xc51snd1 rev. d ? 15-nov-01 8.9 in application programming the iap is based on several application program interface routines (apis) that may be called by the user ? s boot loader to allow programming of the flash memory. the apis are executed by calling the api_call function at address fff0h and by passing the api routine number in r1 register. some other parameters may also be passed in registers as detailed in table 36. table 36. api routines and parameters r1 description 02h program data byte program a data in the flash memory at a given address. parameters dptr address of the byte to program. acc data to program. return none. 09h program data page program a page of data in the flash memory at a given page address. parameters dptr0 address of the page to program. dptr1 address in eram of the first data to program. acc number of bytes to program limited to 128. return none. 05h program software security byte program ssb. parameters dpl 00h program level 1. disable flash programming. 01h program level 2. disable flash programming & verifying. return none. 06h program boot status byte program bsb. parameters dpl 00h select bsb programming. acc data to program in bsb. return none. 06h program software boot vector program sbv. parameters dpl 01h select sbv programming. acc data to program in sbv. return none. 06h program boot loader jump bit program bljb. parameters dpl 04h select bljb programming. acc 00h program bljb. 01h erase bljb. return none.
28 t8xc51snd1 rev. d ? 15-nov-01 06h program x2 bit program x2b. parameters dpl 08h select x2b programming. acc 00h program x2b. 01h erase x2b. return none. 01h erase block erase one of the 5 available blocks. parameters dph 00h erase block 0 from address 0000h to 1fffh. 20h erase block 1 from address 2000h to 3fffh. 40h erase block 2 from address 4000h to 7fffh. 80h erase block 3 from address 8000h to bfffh. c0h erase block 4 from address c000h to ffffh. return none. 04h erase software boot vector and boot status byte erase sbv and bsb. parameters none. return none. 03h read data byte read data at a given address. parameters dptr address of the byte to program. return acc data read. 00h read manufacturer id read manufacturer id. parameters dpl 00h select manufacturer id. return acc id value. 00h read device id 1 read device id 1 parameters dpl 01h select device id 1. return acc id value. 00h read device id 2 read device id 2. parameters dpl 02h select device id 2. return acc id value. r1 description
29 t8xc51snd1 rev. d ? 15-nov-01 00h read device id 3 read device id 3. parameters dpl 03h select device id 3. return acc id value. 07h read software security byte read ssb. parameters dpl 00h select ssb. return acc ssb value. 07h read boot status byte read bsb. parameters dpl 01h select bsb. return acc bsb value. 07h read software boot vector read sbv. parameters dpl 02h select sbv. return acc sbv value. 0bh read hardware security byte read hsb. parameters none. return acc hsb value. 0eh read boot id 1 read boot id 1. parameters dpl 00h select boot id 1. return acc id value. 0eh read boot id 2 read boot id 2. parameters dpl 01h select boot id 2. return acc id value. 0fh read boot loader version read blv. parameters none. return acc blv value. r1 description
30 t8xc51snd1 rev. d ? 15-nov-01 9. peripherals the t8xc51snd1 peripherals are briefly described in the following sections. for further details on how to interface (hardware and software) to these peripherals, please refer to the t8xc51snd1 design guide. 9.1 clock generator system the t8xc51snd1 internal clocks are extracted from an on-chip pll fed by an on-chip oscillator. four clocks are generated respectively for the c51 core, the mp3 decoder, the audio interface, and the other peripherals. the c51 and peripheral clocks are derived from the oscillator clock. the mp3 decoder clock is generated by dividing the pll output clock. the audio interface sample rates are also obtained by dividing the pll output clock. 9.2 ports the t8xc51snd1 implements five 8-bit ports (p0 to p4) and one 4-bit port (p5). in addi- tion to performing general-purpose i/o, some ports are capable of external data memory operations; others allow for alternate functions. all i/o ports are bidirectional. each port contains a latch, an output driver and an input buffer. port 0 and port 2 output drivers and input buffers facilitate external memory operations. some port 1, port 3 and port 4 pins serve for both general-purpose i/o and alternate functions. 9.3 timers/counters the t8xc51snd1 implements the two general-purpose, 16-bit timers/counters of a standard c51. they are identified as timer 0, timer 1, and can independently be config- ured each to operate in a variety of modes as a timer or as an event counter. when operating as a timer, a timer/counter runs for a programmed length of time, then issues an interrupt request. when operating as a counter, a timer/counter counts neg- ative transitions on an external pin. after a preset number of counts, the counter issues an interrupt request. 9.4 watchdog timer the t8xc51snd1 implements a hardware watchdog timer that automatically resets the chip if it is allowed to time out. the wdt provides a means of recovering from rou- tines that do not complete successfully due to software or hardware malfunctions. 9.5 mp3 decoder the t8xc51snd1 implements a mpeg i/ii audio layer 3 decoder (known as mp3 decoder). in mpeg i (iso 11172-3) three layers of compression have been standardized support- ing three sampling frequencies: 48, 44.1, and 32 khz. among these layers, layer 3 allows highest compression rate of about 12:1 while still maintaining cd audio quality. for example, 3 minutes of cd audio (16-bit pcm, 44.1 khz) data, which needs about 32 mbytes of storage, can be encoded into only 2.7 mbytes of mpeg i audio layer 3 data. in mpeg ii (iso 13818-3), three additional sampling frequencies: 24, 22.05, and 16 khz are supported for low bit rates applications. the t8xc51snd1 can decode in real-time the mpeg i audio layer 3 encoded data into a pcm audio data, and also supports mpeg ii audio layer 3 additional frequencies.
31 t8xc51snd1 rev. d ? 15-nov-01 additional features are supported by the t8xc51snd1 mp3 decoder such as volume, bass, medium, and treble controls, bass boost effect and ancillary data extraction. 9.6 audio output interface the t8xc51snd1 implements an audio output interface allowing the decoded audio bit- stream to be output in various formats. it is compatible with right and left justification pcm and i 2 s formats and thanks to the on-chip pll (see section 9.1) allows connection of almost all of the commercial audio dac families available on the market. 9.7 universal serial bus interface the t8xc51snd1 implements a full speed universal serial bus interface. it can be used for the following purposes: download of mp3 encoded audio files by supporting the usb mass storage class. in system programming by supporting the usb firmware upgrade class. 9.8 multimediacard interface the t8xc51snd1 implements a multimediacard (mmc) interface compliant to the v2.2 specification in multimediacard mode. the mmc allows storage of mp3 encoded audio files in removable flash memory cards that can be easily plugged or removed from the application. it can also be used for in system programming. 9.9 ide/atapi interface the t8xc51snd1 provides an ide/atapi interface allowing connexion of devices such as cd-rom reader, compactflash cards, hard disk drive ? it consists in a 16-bit bidi- rectional bus part of the low-level ansi ata/atapi specification. it is provided for mass storage interface but could be used for in system programming using cd-rom. 9.10 serial i/o interface the t8xc51snd1 implements a serial port with its own baud rate generator providing one single synchronous communication mode and three full-duplex universal asynchro- nous receiver transmitter (uart) communication modes. it is provided for the following purposes: in system programming. remote control of the t8xc51snd1 by a host. 9.11 serial peripheral interface the t8xc51snd1 implements a serial peripheral interface (spi) supporting master and slave modes. it is provided for the following purposes: interfacing dataflash memory for mp3 encoded audio files storage. remote control of the t8xc51snd1 by a host. in system programming.
32 t8xc51snd1 rev. d ? 15-nov-01 9.12 2-wire controller the t8xc51snd1 implements a 2-wire controller supporting the four standard master and slave modes with multimaster capability. it is provided for the following purposes: connection of slave devices like lcd controller, audio dac ? remote control of the t8xc51snd1 by a host. in system programming. 9.13 a/d controller the t8xc51snd1 implements a 2-channel 10-bit (8 true bits) analog to digital converter (adc). it is provided for the following purposes: battery monitoring. voice recording. corded remote control. 9.14 keyboard interface the t8xc51snd1 implements a keyboard interface allowing connection of 4 x n matrix keyboard. it is based on 4 inputs with programmable interrupt capability on both high or low level. these inputs are available as alternate function of p1.3:0 and allow exit from idle and power down modes.
33 t8xc51snd1 rev. d ? 15-nov-01 10. absolute maximum rating and operating conditions 10.1 absolute maximum rating table 37. absolute maximum ratings storage temperature .................................................... -65 to +150 c voltage on any other pin to v ss .................................... -0.3 to +4.0 v i ol per i/o pin 5 ma power dissipation ......................................................... 1 w 10.2 operating conditions table 38. operating conditions ambient temperature under bias ................................. -40 to +85 c v dd ................................................................................................................... 2.7 to 3.3v note: stressing the device beyond the ? absolute maximum ratings ? may cause permanent damage. these are stress ratings only. operation beyond the ? operating conditions ? is not recommended and extended exposure beyond the ? operating conditions ? may affect device reliability.
34 t8xc51snd1 rev. d ? 15-nov-01 11. dc characteristics 11.1 dc characteristics - digital logic table 39. digital dc characteristics vdd= 2.7 to 3.3 v, ta= -40 to +85 c notes: 1. typical values are obtained using v dd = 3 v and t a = 25 c. they are not tested and there is no guarantee on these values. symbol parameter min typ 1 max units test conditions v il input low voltage -0.5 0.2 v dd -0.1 v v ih1 input high voltage (except rst) 0.2 v dd +0.9 v dd v v ih2 input high voltage (rst) 0.7 v dd v dd +0.5 v v ol1 output low voltage (except p0, ale, mcmd, mdat, mclk, sclk, dclk, dsel, dout) 0.45 v i ol = 1.6 ma v ol2 output low voltage (p0, ale, mcmd, mdat, mclk, sclk, dclk, dsel, dout) 0.45 v i ol = 3.2 ma v oh1 output high voltage (p1, p2, p3, p4 and p5) v dd -0.7 v i oh = -30 a v oh2 output high voltage (p0, p2 address mode, ale, mcmd, mdat, mclk, sclk, dclk, dsel, dout) v dd -0.7 v i oh = -3.2 ma i il logical 0 input current (p1, p2, p3, p4 and p5) -50 a vin = 0.45 v i li input leakage current (p0, ale, mcmd, mdat, mclk, sclk, dclk, dsel, dout) 10 a 0.45 < v in < v dd i tl logical 1 to 0 transition current (p1, p2, p3, p4 and p5) -650 a vin = 2.0 v r rst pull-down resistor 50 90 200 k ? c io pin capacitance 10 pf t a = 25 c v ret v dd data retention limit 1.8 v i dd operating current tbd tbd ma 12 mhz, v dd < 3.3 v 16 mhz, v dd < 3.3 v 20 mhz, v dd < 3.3 v i dl idle mode current tbd tbd ma 12 mhz, v dd < 3.3 v 16 mhz, v dd < 3.3 v 20 mhz, v dd < 3.3 v i pd power-down current tbd tbd av ret < v dd < 3.3 v
35 t8xc51snd1 rev. d ? 15-nov-01 figure 9. i dd /i dl versus x tal frequency; v dd = 2.7 to 3.3 v 11.2 dc characteristics - i dd, i dl and i pd test conditions figure 10. i dd test condition, active mode figure 11. i dl test condition, idle mode max active mode (ma) typ active mode (ma) max idle mode (ma) typ idle mode (ma) tbd tbd tbd 0 idd/idl (ma) frequency at xtal (mhz) 26810 414 12 20 16 18 x2 vdd clock signal rst vss tst# x1 p0 (nc) idd all other pins are unconnected vdd vss vdd vdd x2 vdd clock signal rst vss tst# x1 p0 (nc) idl all other pins are unconnected vss vdd vss vdd
36 t8xc51snd1 rev. d ? 15-nov-01 figure 12. i pd test condition, power-down mode x2 vdd rst vss mcmd x1 p0 (nc) ipd all other pins are unconnected vss vdd vss vdd tst# mdat
37 t8xc51snd1 rev. d ? 15-nov-01 11.3 dc characteristics - a to d converter table 40. a to d converter dc characteristics vdd= 2.7 to 3.3 v, ta= -40 to +85 c 11.4 dc characteristics - oscillator & crystal 11.5.1 schematic figure 13. crystal connection note: for operation with most standard crystals, no external components are needed on x1 and x2. it may be necessary to add external capacitors on x1 and x2 to ground in spe- cial cases (max 10 pf). x1 and x2 may not be used to drive other circuits. 11.6.2 parameters table 41. oscillator & crystal characteristics vdd= 2.7 to 3.3 v, ta= -40 to +85 c symbol parameter min typ max units test conditions av dd analog supply voltage 2.7 3.3 v ai dd analog operating supply current 600 a av dd = 3.3v ain1:0= 0 to av dd ai pd analog standby current 2 a av dd = 3.3v aden= 0 or pd= 1 av in analog input voltage av ss av dd v av ref reference voltage a refn a refp av ss 2.4 av dd v v r ref aref input resistance 10 30 k ? t a = 25 c c ia analog input capacitance 10 pf t a = 25 c vss x1 x2 q c1 c2 symbol parameter min typ max unit c x1 internal capacitance (x1 - vss) 10 pf c x2 internal capacitance (x2 - vss) 10 pf c l equivalent load capacitance (x1 - x2) 5 pf dl drive level 50 w f crystal frequency 20 mhz rs crystal series resistance 40 ? cs crystal shunt capacitance 6 pf
38 t8xc51snd1 rev. d ? 15-nov-01 11.7 dc characteristics - phase lock loop 11.8.1 schematic figure 14. pll filter connection 11.9.2 parameters table 42. pll filter characteristics vdd= 2.7 to 3.3 v, ta= -40 to +85 c 11.10 dc characteristics - in system programming 11.11.1 schematic figure 15. isp pull-down connection 11.12.2 parameters table 43. isp pull-down characteristics vdd= 2.7 to 3.3 v, ta= -40 to +85 c vss pfilt r c1 c2 vss symbol parameter min typ max unit r filter resistor 100 ? c1 filter capacitance 1 10 nf c2 filter capacitance 2 2.2 nf vss isp# risp symbol parameter min typ max unit r isp isp pull-down resistor 2.2 k ?
39 t8xc51snd1 rev. d ? 15-nov-01 12. ac characteristics 12.1 ac characteristics - external 8-bit bus cycles 12.2.1 definition of symbols table 44. external 8-bit bus cycles timing symbol definitions 12.3.2 timings test conditions: capacitive load on all pins= 50 pf. table 45. external 8-bit bus cycle - data read ac timings vdd= 2.7 to 3.3 v, ta= -40 to +85 c signals conditions a address h high d data in l low l ale v valid q data out x no longer valid r rd# z floating wwr# symbol parameter variable clock standard mode variable clock x2 mode unit min max min max t clcl clock period 50 50 ns t lhll ale pulse width 2 t clcl -15 t clcl -15 ns t avll address valid to ale low t clcl -20 0.5 t clcl -20 ns t llax address hold after ale low t clcl -20 0.5 t clcl -20 ns t llrl ale low to rd# low 3 t clcl -30 1.5 t clcl -30 ns t rlrh rd# pulse width 6 t clcl -25 3 t clcl -25 ns t rhlh rd# high to ale high t clcl -20 t clcl +20 0.5 t clcl -20 0.5 t clcl +20 ns t avdv address valid to valid data in 9 t clcl -65 4.5 t clcl -65 ns t avrl address valid to rd# low 4 t clcl -30 2 t clcl -30 ns t rldv rd# low to valid data 5 t clcl -30 2.5 t clcl -30 ns t rlaz rd# low to address float 0 0 ns t rhdx data hold after rd# high 0 0 ns t rhdz instruction float after rd# high 2 t clcl -25 t clcl -25 ns
40 t8xc51snd1 rev. d ? 15-nov-01 table 46. external 8-bit bus cycle - data write ac timings vdd= 2.7 to 3.3 v, ta= -40 to +85 c 12.4.3 waveforms figure 16. external 8-bit bus cycle - data read waveforms figure 17. external 8-bit bus cycle - data write waveforms symbol parameter variable clock standard mode variable clock x2 mode unit min max min max t clcl clock period 50 50 ns t lhll ale pulse width 2 t clcl -15 t clcl -15 ns t avll address valid to ale low t clcl -20 0.5 t clcl -20 ns t llax address hold after ale low t clcl -20 0.5 t clcl -20 ns t llwl ale low to wr# low 3 t clcl -30 1.5 t clcl -30 ns t wlwh wr# pulse width 6 t clcl -25 3 t clcl -25 ns t whlh wr# high to ale high t clcl -20 t clcl +20 0.5 t clcl -20 0.5 t clcl +20 ns t avwl address valid to wr# low 4 t clcl -30 2 t clcl -30 ns t qvwh data valid to wr# high 7 t clcl -20 3.5 t clcl -20 ns t whqx data hold after wr# high t clcl -15 0.5 t clcl -15 ns t avdv t llax t rhdx t rhdz t avll t avrl p2 p0 rd# ale t lhll t rlrh data in a15:8 t rlaz t llrl t rhlh t rldv d7:0 a7:0
41 t8xc51snd1 rev. d ? 15-nov-01 t whlh t avwl t llax t whqx p2 p0 wr# ale t lhll t wlwh a15:8 t avll t qvwh d7:0 data out t llwl a7:0
42 t8xc51snd1 rev. d ? 15-nov-01 12.5 ac characteristics - external ide 16-bit bus cycles 12.6.1 definition of symbols table 47. external ide 16-bit bus cycles timing symbol definitions 12.7.2 timings test conditions: capacitive load on all pins= 50 pf. table 48. external ide 16-bit bus cycle - data read ac timings vdd= 2.7 to 3.3 v, ta= -40 to +85 c signals conditions a address h high d data in l low l ale v valid q data out x no longer valid r rd# z floating wwr# symbo l parameter variable clock standard mode variable clock x2 mode unit min max min max t clcl clock period 50 50 ns t lhll ale pulse width 2 t clcl -15 t clcl -15 ns t avll address valid to ale low t clcl -20 0.5 t clcl -20 ns t llax address hold after ale low t clcl -20 0.5 t clcl -20 ns t llrl ale low to rd# low 3 t clcl -30 1.5 t clcl -30 ns t rlrh rd# pulse width 6 t clcl -25 3 t clcl -25 ns t rhlh rd# high to ale high t clcl -20 t clcl +20 0.5 t clcl -20 0.5 t clcl +20 ns t avdv address valid to valid data in 9 t clcl -65 4.5 t clcl -65 ns t avrl address valid to rd# low 4 t clcl -30 2 t clcl -30 ns t rldv rd# low to valid data 5 t clcl -30 2.5 t clcl -30 ns t rlaz rd# low to address float 0 0 ns t rhdx data hold after rd# high 0 0 ns t rhdz instruction float after rd# high 2 t clcl -25 t clcl -25 ns
43 t8xc51snd1 rev. d ? 15-nov-01 table 49. external ide 16-bit bus cycle - data write ac timings vdd= 2.7 to 3.3 v, ta= -40 to +85 c 12.8.3 waveforms figure 18. external ide 16-bit bus cycle - data read waveforms note: d15:8 is written in dat16h sfr. symbol parameter variable clock standard mode variable clock x2 mode unit min max min max t clcl clock period 50 50 ns t lhll ale pulse width 2 t clcl -15 t clcl -15 ns t avll address valid to ale low t clcl -20 0.5 t clcl -20 ns t llax address hold after ale low t clcl -20 0.5 t clcl -20 ns t llwl ale low to wr# low 3 t clcl -30 1.5 t clcl -30 ns t wlwh wr# pulse width 6 t clcl -25 3 t clcl -25 ns t whlh wr# high to ale high t clcl -20 t clcl +20 0.5 t clcl -20 0.5 t clcl +20 ns t avwl address valid to wr# low 4 t clcl -30 2 t clcl -30 ns t qvwh data valid to wr# high 7 t clcl -20 3.5 t clcl -20 ns t whqx data hold after wr# high t clcl -15 0.5 t clcl -15 ns t avdv t llax t rhdx t rhdz t avll t avrl p2 p0 rd# ale t lhll t rlrh data in t rlaz t llrl t rhlh t rldv d7:0 a7:0 data in d15:81 a15:8
44 t8xc51snd1 rev. d ? 15-nov-01 figure 19. external ide 16-bit bus cycle - data write waveforms note: d15:8 is the content of dat16h sfr. 12.9 ac characteristics - spi interface 12.10.1 definition of symbols table 50. spi interface timing symbol definitions t whlh t avwl t llax t whqx p2 p0 wr# ale t lhll t wlwh t avll t qvwh d7:0 data out t llwl a7:0 d15:81 data out a15:8 signals conditions c clock h high i data in l low o data out v valid x no longer valid zfloating
45 t8xc51snd1 rev. d ? 15-nov-01 12.11.2 timings test conditions: capacitive load on all pins= 100 pf. table 51. spi interface master ac timing vdd= 2.7 to 3.3 v, t a = -40 to +85 c notes: 1. value of this parameter depends on software. symbol parameter min max unit slave mode t chch clock period 8 t osc t chcx clock high time 3.2 t osc t clcx clock low time 3.2 t osc t slch , t slcl ss# low to clock edge 200 ns t ivcl , t ivch input data valid to clock edge 100 ns t clix , t chix input data hold after clock edge 100 ns t clov, t chov output data valid after clock edge 100 ns t clox , t chox output data hold time after clock edge 0 ns t clsh , t chsh ss# high after clock edge 0 ns t ivcl , t ivch input data valid to clock edge 100 ns t clix , t chix input data hold after clock edge 100 ns t slov ss# low to output data valid 130 ns t shox output data hold after ss# high 130 ns t shsl ss# high to ss# low (1) t ilih input rise time 2 s t ihil input fall time 2 s t oloh output rise time 100 ns t ohol output fall time 100 ns master mode t chch clock period 4 t osc t chcx clock high time 1.6 t osc t clcx clock low time 1.6 t osc t ivcl , t ivch input data valid to clock edge 50 ns t clix , t chix input data hold after clock edge 50 ns t clov, t chov output data valid after clock edge 65 ns t clox , t chox output data hold time after clock edge 0 ns t ilih input data rise time 2 s t ihil input data fall time 2 s t oloh output data rise time 50 ns t ohol output data fall time 50 ns
46 t8xc51snd1 rev. d ? 15-nov-01 12.12.3 waveforms figure 20. spi slave waveforms (sscpha= 0) note: not defined but generally the msb of the character which has just been received. figure 21. spi slave waveforms (sscpha= 1) note: not defined but generally the lsb of the character which has just been received. t slcl t slch t chcl t clch mosi (input) sck (sscpol= 0) (input) ss# (input) sck (sscpol= 1) (input) miso (output) t chch t clcx t chcx t ivcl t clix t chix t ivch t chov t clov t chox t clox msb in bit 6 lsb in slave msb out slave lsb out bit 6 t slov 1 t shox t shsl t chsh t clsh si (input) sck (sscpol= 0) (output) ss#1 (output) sck (sscpol= 1) (output) so (output) t chch t clcx t chcx t ivcl t clix t chix t ivch t chov t clov t chox t clox msb in bit 6 lsb in msb out port data lsb out port data bit 6 t chcl t clch
47 t8xc51snd1 rev. d ? 15-nov-01 figure 22. spi master waveforms (sscpha= 0) note: ss# handled by software using general purpose port pin. figure 23. spi master waveforms (sscpha= 1) note: ss# handled by software using general purpose port pin. t chcl t clch mosi (input) sck (sscpol= 0) (input) ss#1 (input) sck (sscpol= 1) (input) miso (output) t chch t clcx t chcx t ivcl t clix t chix t ivch t clov t chov t clox t chox msb in bit 6 lsb in slave msb out slave lsb out bit 6 t slov 1 t shox t shsl t chsh t clsh t slcl t slch si (input) sck (sscpol= 0) (output) ss#1 (output) sck (sscpol= 1) (output) so (output) t chch t clcx t chcx t ivcl t clix t chix t ivch t chov t clov t chox t clox msb in bit 6 lsb in msb out port data lsb out port data bit 6 t chcl t clch
48 t8xc51snd1 rev. d ? 15-nov-01 12.13 ac characteristics - 2-wire interface 12.14.1 timings table 52. 2-wire interface ac timing vdd= 2.7 to 3.3 v, ta= -40 to +85 c notes: 1. at 100 kbit/s. at other bit-rates this value is inversely proportional to the bit-rate of 100 kbit/s. 2. determined by the external bus-line capacitance and the external bus-line pull-up resistor, this must be < 1 s. 3. spikes on the sda and scl lines with a duration of less than 3 t clcl will be filtered out. maximum capacitance on bus-lines sda and scl= 400 pf. 4. t clcl = t osc = one oscillator clock period. 12.15.2 waveforms figure 24. 2-wire waveforms symbol parameter input m i n max output m i n max t hd ; sta start condition hold time 14 t clcl (4) 4.0 s (1) t low scl low time 16 t clcl (4) 4.7 s (1) t high scl high time 14 t clcl (4) 4.0 s (1) t rc scl rise time 1 s- (2) t fc scl fall time 0.3 s0.3 s (3) t su ; dat1 data set-up time 250 ns 20 t clcl (4) - t rd t su ; dat2 sda set-up time (before repeated start condition) 250 ns 1 s (1) t su ; dat3 sda set-up time (before stop condition) 250 ns 8 t clcl (4) t hd ; dat data hold time 0 ns 8 t clcl (4) - t fc t su ; sta repeated start set-up time 14 t clcl (4) 4.7 s (1) t su ; sto stop condition set-up time 14 t clcl (4) 4.0 s (1) t buf bus free time 14 t clcl (4) 4.7 s (1) t rd sda rise time 1 s - (2) t fd sda fall time 0.3 s0.3 s (3) tsu;dat1 t su ;sta tsu;dat t hd ;sta t high t low sda (input/output) 0.3 vdd 0.7 vdd t buf t su ;sto 0.7 vdd 0.3 vdd t rd t fd t rc t fc scl (input/output) t hd; dat t su; dat3 start or repeated start condition start condition stop condition repeated start condition
49 t8xc51snd1 rev. d ? 15-nov-01 12.16 ac characteristics - mmc interface 12.17.1 definition of symbols table 53. mmc interface timing symbol definitions 12.18.2 timings table 54. mmc interface ac timings vdd= 2.7 to 3.3 v, ta= 0 to 70 c, cl 100pf (10 cards) 12.19.3 waveforms figure 25. mmc input-output waveforms signals conditions c clock h high d data in l low o data out v valid x no longer valid symbol parameter min max unit t chch clock period 50 ns t chcx clock high time 10 ns t clcx clock low time 10 ns t clch clock rise time 10 ns t chcl clock fall time 10 ns t dvch input data valid to clock high 3 ns t chdx input data hold after clock high 3 ns t chox output data hold after clock high 5 ns t ovch output data valid to clock high 5 ns t ivch mclk mdat input t chch t clcx t chcx t chcl t clch mcmd input t chix t ovch mdat output mcmd output t chox
50 t8xc51snd1 rev. d ? 15-nov-01 12.20 ac characteristics - audio interface 12.21.1 definition of symbols table 55. audio interface timing symbol definitions 12.22.2 timings table 56. audio interface ac timings vdd= 2.7 to 3.3 v, ta= 0 to 70 c, cl 30pf notes: 1. 32-bit format with fs= 48 khz. 12.23.3 waveforms figure 26. audio interface waveforms signals conditions c clock h high o data out l low s data select v valid x no longer valid symbol parameter min max unit t chch clock period 325.5 (1) ns t chcx clock high time 30 ns t clcx clock low time 30 ns t clch clock rise time 10 ns t chcl clock fall time 10 ns t clsv clock low to select valid 10 ns t clov clock low to data valid 10 ns dclk t chch t clcx t chcx t clch t chcl dsel ddat right left t clsv t clov
51 t8xc51snd1 rev. d ? 15-nov-01 12.24 ac characteristics - analog to digital converter 12.25.1 definition of symbols table 57. analog to digital converter timing symbol definitions 12.26.2 characteristics table 58. analog to digital converter ac characteristics vdd= 2.7 to 3.3 v, ta= 0 to 70 c notes: 1. av dd = av refp = 3.0 v, av ss = av refn = 0 v. adc is monotonic with no missing code. 2. the differential non-linearity is the difference between the actual step width and the ideal step width (see figure 28). 3. the integral non-linearity is the peak difference between the center of the actual step and the ideal transfer curve after appropriate adjustment of gain and offset errors (see figure 28). 4. the offset error is the absolute difference between the straight line which fits the actual transfer curve (after removing of gain error), and the straight line which fits the ideal transfer curve (see figure 28). 5. the gain error is the relative difference in percent between the straight line which fits the actual transfer curve (after removing of offset error), and the straight line which fits the ideal transfer curve (see figure 28). 12.27.3 waveforms figure 27. analog to digital converter internal waveforms signals conditions c clock h high e enable (aden bit) l low s start conversion (adsst bit) symbol parameter min max unit t clcl clock period 1.43 s t ehsh start-up time 4 s t shsl conversion time 11 t clcl s dle differential non- linearity error 1, 2 tbd lsb ile integral non- linearity error 1, 3 tbd lsb ose offset error 1, 4 tbd lsb ge gain error 1, 5 tbd % aden bit adsst bit t ehsh t shsl clk t clcl
52 t8xc51snd1 rev. d ? 15-nov-01 figure 28. analog to digital converter characteristics 12.28 ac characteristics - flash memory 12.29.1 definition of symbols table 59. flash memory timing symbol definitions 12.30.2 timings table 60. flash memory ac timing vdd= 2.7 to 3.3 v, ta= -40 to +85 c 1 2 3 4 5 6 7 1018 1019 1020 1021 1022 1023 1024 1 2 3 4 5 6 7 1018 1019 1020 1021 1022 1023 offset error code out avin (lsbideal) ose offset error ose gain error ge ideal transfer curve 1 lsb (ideal) integral non-linearity (ile) differential non-linearity (dle) center of a step example of an actual transfer curve 0 0 signals conditions s isp# l low r rst v valid b fbusy flag x no longer valid symbol parameter min typ max unit t svrl input isp# valid to rst edge 50 ns t rlsx input isp# hold after rst edge 50 ns t bhbl flash internal busy (programming) time 10 ms
53 t8xc51snd1 rev. d ? 15-nov-01 12.31.3 waveforms figure 29. flash memory - isp waveforms note: isp# must be driven through a pull-down resistor (see section 11.10, page 38). figure 30. flash memory - internal busy waveforms 12.32 ac characteristics - external clock drive and logic level references 12.33.1 definition of symbols table 61. external clock timing symbol definitions 12.34.2 timings table 62. external clock ac timings vdd= 2.7 to 3.3 v, ta= 0 to 70 c 12.35.3 waveforms figure 31. external clock waveform rst t svrl isp#1 t rlsx fbusy bit t bhbl signals conditions c clock h high l low x no longer valid symbol parameter min max unit t clcl clock period 50 ns t chcx high time 10 ns t clcx low time 10 ns t clch rise time 3 ns t chcl fall time 3 ns t cr cyclic ratio in x2 mode 40 60 % 0.45 v t clcl v dd - 0.5 v ih1 v il t chcx t clch t chcl t clcx
54 t8xc51snd1 rev. d ? 15-nov-01 figure 32. ac testing input/output waveforms note: 1. during ac testing, all inputs are driven at v dd -0.5 v for a logic 1 and 0.45 v for a logic 0. 2. timing measurements are made on all outputs at v ih min for a logic 1 and v il max for a logic 0. figure 33. float waveforms note: for timing purposes, a port pin is no longer floating when a 100 mv change from load voltage occurs and begins to float when a 100 mv change from the loading v oh /v ol level occurs with i ol /i oh = 20 ma. 0.45 v v dd - 0.5 0.7 v dd 0.3 v dd v ih min v il max inputs outputs v load v oh - 0.1 v v ol + 0.1 v v load + 0.1 v v load - 0.1 v timing reference points
55 t8xc51snd1 rev. d ? 15-nov-01 13. packages 13.1 list of packages tqfp80 plcc84 13.2 tqfp80 - mechanical outline figure 34. tqfp80 - mechanical outline
56 t8xc51snd1 rev. d ? 15-nov-01 13.3 plcc84 - mechanical outline figure 35. plcc84 - mechanical outline
57 t8xc51snd1 rev. d ? 15-nov-01 14. ordering information (*)check for availability. plcc84 package only available for development board. part-number memory size supply voltage temperature range max frequency package packing t89c51snd1- rotil 64k flash 3v industrial 40mhz tqfp80 tray t83c51snd1*- rotil 64k rom 3v industrial 40mhz tqfp80 tray
i t8xc51snd1 rev. d ? 15-nov-01 table of contents 1. features ..........................................................................................................1 2. description ......................................................................................................2 3. typical applications .........................................................................................2 4. pin description ................................................................................................3 4.1 pinouts ......................................................................................................3 4.2 signals........................................................................................................4 4.3 internal pin structure .................................................................................10 5. block diagram .................................................................................................11 6. application information ....................................................................................12 7. address spaces ..............................................................................................15 7.1 code memory ............................................................................................15 7.2 boot memory .............................................................................................15 7.3 data memory .............................................................................................15 7.4 special function registers ........................................................................15 8. in system & in application programming ........................................................22 8.1 introduction ................................................................................................22 8.2 in system programming ............................................................................22 8.3 serial boot loader .....................................................................................24 8.4 in application programming ......................................................................27 9. peripherals ......................................................................................................30 9.1 clock generator system ...........................................................................30 9.2 ports ..........................................................................................................30 9.3 timers/counters ........................................................................................30 9.4 watchdog timer ........................................................................................30 9.5 mp3 decoder ............................................................................................30 9.6 audio output interface ..............................................................................31 9.7 universal serial bus interface ...................................................................31 9.8 multimediacard interface ..........................................................................31 9.9 ide/atapi interface ..................................................................................31 9.10 serial i/o interface ..................................................................................31 9.11 serial peripheral interface .......................................................................31 9.12 2-wire controller ......................................................................................32 9.13 a/d controller ..........................................................................................32 9.14 keyboard interface ..................................................................................32 10. absolute maximum rating and operating conditions ...................................33 10.1 absolute maximum rating ......................................................................33 10.2 operating conditions ...............................................................................33 11. dc characteristics ........................................................................................34 11.1 dc characteristics - digital logic ............................................................34 11.2 dc characteristics - idd, idl and ipd test conditions ..........................35 11.3 dc characteristics - a to d converter .....................................................37 11.4 dc characteristics - oscillator & crystal .................................................37 11.5 dc characteristics - phase lock loop ....................................................38 11.6 dc characteristics - in system programming .........................................38 12. ac characteristics .........................................................................................39 12.1 ac characteristics - external 8-bit bus cycles .......................................39 12.2 ac characteristics - external ide 16-bit bus cycles ..............................41 12.3 ac characteristics - spi interface ...........................................................44 12.4 ac characteristics - 2-wire interface .......................................................48 12.5 ac characteristics - mmc interface ........................................................49 12.6 ac characteristics - audio interface .......................................................50 12.7 ac characteristics - analog to digital converter .....................................51
ii t8xc51snd1 rev. d ? 15-nov-01 12.8 ac characteristics - flash memory ......................................................52 12.9 ac characteristics - external clock drive and logic level references .53 13. packages .......................................................................................................55 13.1 list of packages ......................................................................................55 13.2 tqfp80 - mechanical outline .................................................................55 13.3 plcc84 - mechanical outline .................................................................56 14. ordering information .....................................................................................57
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