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ST92R195
ROMLESS HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER
BRIEF DATA
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Register File based 8/16 bit Core Architecture with RUN, WFI, SLOW and HALT modes 0C to +70C Operating Temperature Range available Up to 24 MHz Operation @ 5V10% Minimum instruction cycle time: 375ns at 16MHz internal clock 4 Mbytes address space 256 Bytes RAM of Register file (accumulators or index registers) 1024 Bytes of on-chip static RAM 8K Bytes of TDSRAM (Teletext and Display RAM) 80-lead QFP package 23 fully programmable I/O pins Serial Peripheral Interface Flexible Clock controller for OSD, Data Slicer and Core clocks running from one single low frequency external crystal. Enhanced Display Controller with 26 rows of 40/80 characters - Serial and Parallel attributes - 10x10 dot Matrix, 512 ROM characters, definable by user - 4/3 and 16/9 supported - Rounding, fringe, double width, double height, scrolling, cursor, full background colour, semitransparent mode and reduced intensity colour supported - 50/60 Hz. or 100/120 Hz. operation. Teletext unit, including Data slicer, Acquisition Unit and up to 8 Kbytes TDSRAM for Data Storage VPS and Wide Screen Signalling slicer Integrated Sync Extractor and Sync Controller 14-bit Voltage Synthesis for tuning reference voltage Up to 8 External Interrupts plus 1 non-maskable interrupt
QFP80
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8 x 8-bit programmable PWM outputs with 5V open-drain or push-pull capability 16-bit Watchdog timer with 8-bit prescaler 16-bit standard timer with 8-bit prescaler usable as a Watchdog timer 4-channel Analog-to-Digital converter; 6-bit guaranteed Rich instruction set and 14-Addressing modes Versatile Development Tools, including Assembler, Linker, C-compiler, Archiver, Source Level Debugger and Hardware Emulators with Real-Time Operating System available from third parties
Dectember 1997
This is preliminary information ona new product in development orundergoing evaluation. Details are subject to change without notice.
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ST92R195
1 DESCRIPTION OF THE ST92R195
The ST92R195 is a member of the ST9+ family of microcontrollers, completely developed and produced by SGS-THOMSON Microelectronics using a proprietary n-well HCMOS process. The nucleus of the ST92R195 is the advanced Core which includes the Central Processing Unit (CPU), the ALU, the Register File and the interrupt controller. The Core has independent memory and register buses to add to the efficiency of the code. Figure 1. ST92R195 Block Diagram
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A set of on-chip peripherals form a complete system for TV set and VCR applications: - Voltage Synthesis - VPS/WSS Slicer - Teletext Slicer - Teletext Display RAM - OSD
I/O PORT 0 1 Kbyte RAM TELETEXT DATA SLICER SYNC. EXTRACTION MEMORY BUS VPS/WSS DATA SLICER I/O PORT 2 ADC/VS
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P0[2:0]
CVBS1
8K Bytes TDSRAM TRI
256 bytes Register File 8/16 bits CPU NMI INT[7:0] Oscin Oscout RESET Interrupt Management
WSCR WSCF CVBS2 TXCF 6 AIN1 VS01 AIN2 VS02 AIN3 AIN4
ADC ST9+ CORE RCCU 16-BIT TIMER/ WATCHDOG SPI I/O PORT 3 SYNC CONTROL ON SCREEN DISPLAY I/O PORT 4 P.W.M Output P.W.M. D/A CONVERTER I/O PORT 5 (SPI) 2 SDO/SDI SCK 4 RESET0 CSO CSO VSYNC HSYNC/ CSYNC PLL PXFM/ R/G/B/FB/TS LU 8 PWM[7:0] EXTRG
TIMING S CTRL UNIT
STOUT
STANDARD TIMER VOLTAGE SYNTHESIS
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REGISTER BUS
ST92R195
Notes:
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without the express written approval of SGS-THOMSON Microelectronics.
(c)1997 SGS-THO MSON Microelectronics - All Rights Reserved. Purchase of I2 C Components by SGS-THOMSON Microelectronics conveys a license under the Philips I2C Patent. Rights to use these components in an I2C system is granted provided that the system conforms to the I2C Standard Specification as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
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