CL SH351_High_Perf_Sync_Async_Integrated_SCSI_Disk_Ctlr_Product_Bulletin_Jan91 SH351 High Perf Sync Async Integrated SCSI Disk Ctlr Product Bulletin Jan91
User Manual: CL-SH351_High_Perf_Sync_Async_Integrated_SCSI_Disk_Ctlr_Product_Bulletin_Jan91
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CL-SH351 CIRRUS LOGIC Product Bulletin FEATURES High-performance Synchronous/Asynchronous Integrated SCSI Disk Controller Microcontrol/er Interface: • Supports high-speed microcontroller interfaces (e.g., 16-MHz 8051, 12-MHz 68HC11, 30-MHz HPC460X3) SCSI Interface: • Supports SCSI-2 Initiation and Target modes • Supports asynchronous DMAIPIO transfers up to 3 MBytes/sec. OVERVIEW • Supports synchronous DMAIPIO transfers up to 10 MBytes/sec. • Supports up to 15-byte synchronous transfer offsets and 13 programmable transfer periods • Controls synchronous transfer overrun/underrun • Controls arbitration, selection, and reselection in hardware • Detects selected and reselected conditions automatically • Integrates 48-mA SCSI bus drivers in the interface • Provides control for the external differential driver option [ The CL-SH351 is a VLSI component that provides the majority of the hardware necessary to build a Small Computer System Interface (SCSI) Winchester disk controller. The CL-SH351 design combines a high-speed local microcontroller port, extensive hardware support for the SCSI interface, a two-channel Buffer Manager, and an advanced Sector Formatter. With the addition of only a few discrete components for the device-level interface, the CL-SH351, along with a local microcontroller, system ROM and RAM, and an optional data separator, completes a disk controller subsystem with high performance at a low overall cost. (cont.) Sector Formatter: • Programmable Format Sequencer Writable Control Store (WCS-31 x 4 bytes) • Supports up to 32-MHz NRZ data rates (cont.) Functional Block Diagram 1- - - - - - - - - - - - - - - - - - - - - - - - - - -I SECTOR FORMATTER SOBO':7' SOBp·'--..... ATW'4-..... ACK·'---BSY··--..... SEL' MSG··---C'/~---4~ MICROCONTROLLER INTERFACE SCSI CONTROL AND DATA TRANSFER FORMAT SEQUENCER 1 INOEX I WAM'/AMO'/SECTOR 1 RG WG INPUT OUPUT SYSCLK WCS 31 X4 BYTES 1'/0 REO' SRSP BUFFER MANAGER ~J SDOE INIT TAR AlP BSYO SELO SECTOR FORMATTER DATA PATH DIFFERENTIAL CONTROL ..., ~ ..... In In .:;III <0 CD ~ C I» "T1 - ci CD :> i" ~ "0 I» :> CD <0 -" () ~ "T1 "0 ::2 j C ii)' CQ ""I I» 3 :,CD ::;j, III (') CD CJ) !!l. <" CD 2 CD s:: CJ) a cO" :> !!!- (')" (') 0 :> a ro ~ :,- CD ::;j, III (') CD BGND BGND BA6 BA7 BA17ICAS" BA8 BA9 BA10 BA11 BA12 BA13 BA14 BA15 BA16/RAS" MOE" WE" DINT" CS WR"/R/W" RD"/DS READY AD7 AD6 IIMC" LGND LGND AD5 HINT" MCE" AD4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 g~oo~m~.wN~o~oo~m~.wN~M • ..... 0 0 0 rI :!!(J) Z:::t ~W "C Ul ...... ~.. .... .... .... .... ..... ..... ..... ..... .... .... .... .... .... .... .... .... ... ~~~~~zz~~~(IJ~~~~ZOz(IJ(IJ oooorm~o<~(IJ~~'QQ~~e~QO WN~O em ~x s::~(lJZ »• ' 0 0 r ON~OZO r ~~om ;>; e ~ ;>;~IL.-J Microcontrolier Interface ~ 0 ~ Sector Formatter Interface SCSI Bus Interface (N/C) 1"/0 REO" COlD SEL" SGND SGND MSG" SRST* SELO ACK" BSY" ATN" BSYO SGND SGND SDBP" AlP SDB7" SDB6" SDB5" SDB4" SGND SDB3" TAR INIT SDB2" SDB1" SDBO" +5V (IJ 0 ~ tD c: CJ) ~ ::;j, III (') CD CL-SH351 Product Bulletin RRUSLOGIC C Direct Sb/es Offices Domestic N. CALIFORNIA San Jose TEL: 408/436-7110 FAX: 408/437-8960 S. CALIFORNIA Laguna Hills TEL: 714/472-3939 FAX: 714/472-4804 Thousand Oaks TEL: 805/371-5381 FAX: 805/371-5382 ROCKY MOUNTAIN AREA Boulder, CO TEL: 303/939-9739 FAX: 303/440-5712 International NORTH CENTRAL AREA Westchester, IL TEL: 708/449-7715 FAX: 708/449-7804 NORTHEASTERN AREA Andover, MA TEL: 508/474-9300 FAX: 508/474-9149 SOUTH CENTRAL AREA Austin, TX TEL: 512/794-8490 FAX: 512/794-8069 Philadelphia, PA TEL: 215/251-6881 FAX: 215/651-0147 SOUTH EASTERN AREA Boca Raton, FL TEL: 407/994-9883 FAX: 407/994-9887 Atlanta, GA TEL: 404/263-7601 FAX: 404n29-6942 JAPAN Kanagawa-Ken TEL: 81/462-76-0601 FAX: 81/462-76-0291 SINGAPORE TEL: 65/3532122 FAX: 65/3532166 TAIWAN Taipei TEL: 886/2-718-4533 FAX: 886/2-718-4526 GERMANY Herrsching TEL: 49/8152-2030 FAX: 49/8152-6211 () The Company Cirrus Logic, Inc., is a leading supplier of high-integration peripheral controller circuits for mass storage, graphics, and data communications. The company also produces state-of-the-art software and firmware to complement its product lines. Cirrus Logic technology is used in leading-edge personal computers, engineering workstations, and office automation. The Cirrus Logic formula combines proprietary S/LATMt IC design automation with system design expertise. The S/LA design system is a proven tool for developing high-performance logic circuits in half the time of most semiconductor companies. The results are better VLSI products, on-time, that help you win in the marketplace. Cirrus Logic's extensive quality assurance program - one of the industry's most stringent ensures the utmost in product reliability. Talk to our systems and applications specialists; see how you can benefit from a new kind of semiconductor company - Cirrus Logic. t U.S. Patent No. 4,293,783 © Copyright, Cirrus Logic, Inc., 1990 Cirrus Logic, Inc. believes the information contained in this document is acCurate and reliable. However, it is subject to change without notice. No responsibility is assumed by Cirrus Logic, Inc. for its use, nor for infringements of patents or other rights of third parties. This document implies no license under patents or copyrights. Trademarks in this document belong to their respective companies. Cirrus Logic, Inc. products are covered under one or more of the following U.S. patents: 4,293,783; Re. 31,287; 4,763,332; 4,777,635; 4,839,896; 4,931,946; 4,979,173. CIRRUS LOGIC, Inc., 3100 West Warren Ave. Fremont, CA 94538 TEL: 415/623-8300 FAX: 415/226-2160 215351-001
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