LSI53C875E [ETC]
LSI53C875E PCI-single channel Ultra SCSI controller ; LSI53C875E PCI -单信道的Ultra SCSI控制器\n
| 型号： | LSI53C875E |
| 厂家： | 
ETC |
| 描述： | LSI53C875E PCI-single channel Ultra SCSI controller
|
| 文件： | 总4页 (文件大小：370K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LSI53C875E
SCSI CONTROLLER
The Communications Company™
P C I - U LT R A S C S I C O N T R O L L E R
B E N E F I T S
• Pin-for-pin replacement for
LSI53C825 and LSI53C825AE
devices
• Minimal software and hardware
modifications required for Ultra
SCSI support
• Compact 160-pin PQFP reduces
board space requirements
(LSI53C875E, LSI53C875JE)
O V E R V I E W
• Alternative 169 BGA package
(LSI53C875JBE)
The LSI53C875E controller supports Ultra SCSI transfers, enabling the
chip to transfer SCSI data at up to 40 MBps across a 16-bit bus. Ultra SCSI
is an extension of the SCSI-3 standard that expands the bandwidth of the
SCSI bus and allows faster synchronous SCSI transfer rates-approximately
double the synchronous transfer rates of fast SCSI-2. The LSI53C875E provides
full SCSI-2 capabilities and reduces the requirements for system BIOS support
• Direct PCI to SCSI connection
• Fully supported by SDMS
software for complete PC-based
operating system support
®
with a local memory interface. It also features LSI Logic TolerANT SCSI driver
and receiver technology, for reliable operation in all cabling environments. It
is designed to connect gluelessly to the Peripheral Component Interconnect
(PCI) bus, and supports PCI extended access cycles, enabling the system
architect to take advantage of PCI’s performance potential.
F E A T U R E S
• Performs wide high-speed SCSI
bus transfers in single-ended
and differential mode up to:
The LSI53C875E and SDMS™ software provide a total Ultra SCSI solution
in PC and workstation environments. LSI Logic’s SDMS software package
supports the entire LSI53C8XX family of PCI-to-SCSI controllers plus a wide
range of SCSI peripheral devices.
• 40 MBps synchronous (Ultra)
• 14 MBps asynchronous
• SCRIPTS™ Instruction Prefetch
• 536-byte buffer allows burst
length of up to 128 transfers
Included in the performance-enhancing features on the LSI53C875E is
a 4 KB static RAM for SCRIPTS (the LSI Logic developed SCSI programming
language) instruction storage, which allows tailored SCSI sequences to be
executed locally. A 536-byte DMA FIFO increases system performance by
allowing burst lengths of up to 128 transfers. Other features include:
• Load and store instruction
• 4 KB static RAM for SCRIPTS
instruction storage
• SCRIPTS instruction prefetch which permits fetching four or eight double
words of instructions or instruction operands.
• 32 additional scratchpad
registers for user-defined functions
• Support for PCI extended access cycles: Memory Read Multiple, Memory
Read Line, and Memory Write and Invalidate.
LSI53C875E SCSI Controller
• Selectable IRQ disable, allowing system designers to customize their
system interface.
• SCSI Selected as ID register, improving SCRIPTS coding and system tracking.
• Load and Store instruction allows the programmer an efficient instruction
option to load data directly to/from memory and from/to an internal register,
reducing the number of l/O instructions to implement a SCRIPTS task.
F L E X I B I L I T Y F E A T U R E S
• Supports single-ended and differential modes
• Selectable IRQ disable
• SCSI Selected as ID register
• Support for both 3.3 volt and 5 volt PCI interfaces
• High-level programming interface (SCSI SCRIPTS)
• Allows tailored SCSI sequences to be executed from main memory
• Accommodates changes in the logical I/O interface definition
• Low-level access to all registers and all SCSI bus signals
C O M P A T I B I L I T Y F E A T U R E S
• Compiler-compatible with existing LSI53C7XX and LSI53C8XX SCRIPTS
• Full complement of LSI Logic SCSI SCRIPTS development tools available
• BIOS and driver support for hard disk, tape, CD-ROM, and removable
media peripherals for all of the major operating systems, including:
®
®
• Windows NT 4.0
®
• Windows 95/98
• DOS
®
• Linux
®
• NetWare
• SCO UnixWare™
• OS/2 Warp
®
• Solaris
R E L A T E D L S I 5 3 C 8 7 5 E P R O D U C T S
•
LSI53C875JE — the LSI53C875E with JTAG availability and a
160-pin PQFP package
•
•
•
LSI53C875JBE — the LSI53C875E with a 169 BGA package
LSI8751SPE host adapter
LSI8751D host adapter
SCSI Connection
Vss
SCSI Term Connection
Vdd
SCSI Bus
Peripheral
PCI Bus
LSI53C875E
SCLK
40 MHz
Oscillator
CPU Baseboard
CPU Box
Figure 1: LSI53C875E system diagram
LSI53C875E SCSI Controller
For more information please visit
the LSI Logic web site at:
http://storageio.lsilogic.com
LSI Logic Corporation
North American Headquarters
Milpitas, CA
Tel: 800 574 4286
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
LSI Logic logo design and TolerANT are registered
trademarks, and SCRIPTS and SDMS are 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 herein, 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 right reserved.
Order No. S20027
2/01-500 – Printed in USA
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