benefits increased peripheral connectivity - up to 30 devices complete host adapter solution for quick time-to-market true multi-function device provides better performance than pci-to-pci bridge solutions up to 80 mbps combined synchronous transfer rate for two 16-bit ultra scsi channels improved reliability with a single chip solution automatic termination determined by cabling environment (ease of use for oems and end users) complete software support with bios and drivers termination power supplied through self-resetting current limiting device allows custom driver development with scsi scripts connectors for off-board scsi active leds any drive in a disk array can be used as the boot device on-board bios supports disk drives with greater than 8-gbyte capacity LSI22801 scsi host adapter the LSI22801 is a pci-dual channel multi-function, single-ended ultra scsi solution. overview the LSI22801 host adapter is a multi-function board providing two independent single-ended ultra scsi channels. both scsi channels are identical, offering increased connectivity without utilizing additional pci slots. a single board provides a powerful dual channel, multitasking interface for ultra scsi peripherals such as disk, tape, cd-rom, and other scsi devices. the LSI22801 leverages the lsi53c876 pci dual channel scsi multi- function controller capable of connecting directly to the pci bus, presenting one electrical load, while functioning as a single 32-bit pci dma bus master. the LSI22801 includes an on-board configuration utility allowing viewing and changing of default configuration settings for the host adapter and connected scsi peripherals. the device also provides advanced features for ease of use by modifying the on-board terminators depending on cable configuration and leds to help with termination power (termpwr) monitoring. the LSI22801 has advanced features which makes it the right choice for applications requiring up to 30 connected peripherals, or for isolating peripheral classes (e.g. cd-roms and tape drives on one channel and high performance disk drives on the other).
technical description the LSI22801 uses the lsi53c876 pci dual channel scsi multi-function controller. this single-chip multi-function device connects directly to the pci bus. termination control for each channel the adapter will automatically determine when cables are attached to which connector and properly enable or disable the scsi terminators. the table 1 below shows which cable combinations are allowed. four jumpers included to manually force the different cable configurations. termination power one led per channel is included to indicate the status of termination power (termpwr). configuration utility the resident menu-driven bios configuration utility allows the viewing and changing of the default settings for the host adapter and scsi devices. the following table lists the configuration settings which can be changed. the global settings affect the host adapter and all scsi devices connected to it. the host adapter boot order can be changed if more than one scsi host adapter solution is implemented, see table 2. interrupts the host adapter includes a jumper to select separate interrupts (channel a routed to inta# pin and channel b routed to intb# pin) or shared interrupts (channel a and channel b routed to inta#/ pin). pci features true multi-function device (per pci 2.1 specification) uses only one pci slot functions as one 32-bit pci dma bus master two independent dma channels with internal programmable arbitration 33 mhz pci bus zero wait state operation maximum burst transfer rate of 132 mbps supports pci write and invalidate, read line, and read multiple commands universal 3.3v and 5v pci scsi features 16-bit ultra scsi design based on the popular lsi53c875 for maximum performance local memory bus for flash memory bios storage scsi tolerant active negation scsi driver and receiver technology scam (scsi configured automatically) level 1 functionality for scsi plug-and-play support external vhdci scsi connector per channel 2 LSI22801 scsi host adapter 8-bit internal 16-bit internal 8-bit external 16-bit external ? ? ? ? table 1. cable combinations - legal cable combinations allowed by the LSI22801 utilizing the two internal and two external scsi connectors
software features support for dos, windows 95, novell netware, windows nt, unixware, and sco open server, os/2, aspi software drivers and scripts compatible with lsi53c825a and lsi53c875 tagged command queuing for peak performance in multi- tasking environments shared interrupts and shared memory allow multiple pci devices in a single-interrupt system software support for cd-rom, tape backup, hard disk, and removable media support utilities: install utility flash utility configuration utility multiple host adapter support multiple luns per scsi id for raid and media changer capability 3 subsystem id subsystem id and subsystem vendor id support enables users to develop custom software while still using a standard board configuration. LSI22801 pci-dual channel, multi-function, single-ended, ultra scsi host adapter graphical representation 68-pin high density scsi connector 68-pin high density scsi connector 50-pin ribbon scsi connector 50-pin ribbon scsi connector 68-pin vhdci 68-pin vhdci nvram flash lsi53c876 setting default global/device scam support on global parity checking enabled global host adapter 7 global scsi id scan order low to high global (0 - max) synchronous 40 mb device transfer rate (ultra) data width 16 device disconnect on device i/o time-out (secs) 10 device scan for device yes device at boot scan for scsi luns yes device queue tags enabled device table 2. configuration settings - configuration settings can be changed on the LSI22801
for more information please visit the lsi logic web site at: http://storageio.lsilogic.com lsi logic corporation north american headquarters milpitas, ca tel: 866 574 5741 host adapter group southborough, ma tel: 888 429 0425 fax: 508 485 0303 lsi logic europe ltd. european headquarters united kingdom tel: 44 1344 426544 fax: 44 1344 481039 lsi logic kk headquarters tokyo, japan tel: 81 3 5463 7165 fax 81 3 5463 7820 iso 9000 certified the lsi logic logo design, scripts, sdms, and tolerant are trademarks or registered trade- marks of lsi logic corporation. all other brand and product names may be trademarks of their respective companies. lsi logic corporation reserves the right to make changes to any products and services herein at any time without notice. lsi logic does not assume any responsibility or liability arising out of the application or use of any product or service described her ein, except as expressly agreed to in writing by lsi logic; nor does the purchase, lease, or use of a product or service from lsi logic convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual property rights of lsi logic or of third parties. copyright ?2001 by lsi logic corporation. all rights reserved. order no. s20071 8/01-1m printed in usa 4 LSI22801 scsi host adapter technical specifications pci bus 32-bit, 3.3/5 v local bus (versions 2.0 and 2.1) pcl modes bus master dma pci transfer rate up to 132 mbps scsi asynchronous up to 14 mbps per channel scsi synchronous up to 40 mbps per channel pci voltage +5v 5% (3.0 a max), 12v 5% (50 ma max) pci form factor 7.5 x 4.0 bracket isa/eisa certification level pci 2.1 compliant scsi bus 16-bit scsi processor lsi53c876 connectors external internal per channel 68-pin vhdci 68-pin hd 50-pin ribbon termination automatic, active termination power self-resetting led indicators 4-pin header for off-board leds environments operating storage temperature 5 c to 55 c -55 c to +85 c relative humidity 5 to 90% non-condensing 5 to 90% non-condensing max dew point temp 32 c compliances ce, vcci, fcc and cispr class b, ul 94vo software support os support versions dos with aspi support windows 95, 98, me, 2000, nt4.0 sp4 and above netware 4.2, 5.0 and 5.1 unix w are 2.1 & 7 . x sco unix open server 5.x os/2 warp 4.x utilities install, flash (dos only), scsi format, scsi configuration, verify
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