SYM53C876E(PQFP) [ETC]
SCSI Bus Interface/Controller ; SCSI总线接口/控制器\n
| 型号： | SYM53C876E(PQFP) |
| 厂家： | 
ETC |
| 描述： | SCSI Bus Interface/Controller
|
| 文件： | 总4页 (文件大小：332K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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SYM53C876E Data Sheet
SYM53C876E
PCI-Dual Channel SCSI
Multi-function Controller
The SYM53C876E PCI-Dual Channel SCSI Multi-
function Controller brings the proven performance
of the SYM53C8XX family of PCI-SCSI I/O
Processors to a new performance and integration
level. This single-chip multi-function device
connects directly to the PCI bus, presenting one
electrical load, while functioning as a single
32-bit PCI DMA bus master. It contains two Wide
Ultra SCSI interfaces for maximum performance
and flexibility.
The SYM53C876E, and its companion host
adapters that support both single-ended and
differential SCSI environments, along with a
complete set of SCSI drivers, provide a total SCSI
solution in desktop, workstation, server, and
RAID environments.
General Features
Two independent DMA channels with internal
Benefits
programmable arbitration
True PCI multi-function device provides
direct connection from the PCI bus to two
independent bus mastering Ultra SCSI channels
Motherboard or Host Adapter solution - BIOS
can be stored in system, or in local EPROM or
FLASH memory
One device replaces two, reducing the number of
LSI Logic provides complete software support
PCI bus loads and bus masters in the system
with BIOS and drivers
Increases throughput up to twofold for systems
Allows custom driver development with LSI
that now operate with single channel SCSI
Logic SCSI SCRIPTSTM
High performance Wide Ultra SCSI solution
based on the proven technology of the
SYM53C875 I/O Processor
208-pin PQFP or 256-pin BGA package
Supports IEEE 1149.1 JTAG boundary scan for
improved testability
Compliant with Microsoft PC 97 and PC 98
PCI Features
True multi-function device as defined in PCI 2.1
Local Memory Buses
A parallel ROM interface supports both channels with
up to one megabyte of external memory, allowing the
use of expansion ROM for add-in PCI cards. For ease of
software development and field upgrades of the device’s
local ROM, the interface supports local programming of
FLASH memory. A serial 2-wire interface on each SCSI
channel provides a connection to an external serial
EEPROM for storing the Subsystem Vendor ID and
Subsystem ID.
Specification - presents only one load to the PCI bus
Connects directly to the PCI bus without external
logic
Functions as one 32 bit PCI DMA Bus Master
Supports 33 MHz PCI Bus zero wait state operation
Supports maximum burst transfer rate of 132 MB/s
Supports shared or separate interrupts on the PCI
bus for maximum flexibility
Direct Connection to PCI
Drawing upon LSI Logic’ long-term participation in PCI
standards committees, this part was designed with PCI
compliance in mind, as were all of the LSI Logic
SYM53C8XX family parts. The SYM53C876E PCI-Dual
Channel SCSI Multi-function Controller is fully
compliant with the PCI 2.1 specification, including the
requirements for multi-function devices.
PCI Subsystem Vendor ID and Subsystem ID support
with 2-wire serial EEPROM port on each channel
Supports PCI extended access cycles
Supports 3.3V and 5V PCI interface
SCSI Features
16 bit Ultra SCSI design based on the existing
Software Support
SYM53C875 for maximum performance
LSI Logic provides a complete software solution with
BIOS and drivers to support the SYM53C876E and the
entire SYM53C8XX family of PCI-SCSI I/O Controllers.
One differential channel (can be configured as single-
ended) and one single-ended channel*
Up to 40 MB/s synchronous transfer rate on each
channel
Drivers are available for NetWare, Windows NT, DOS,
Windows 3.1, Windows 95, UnixWare, OS/2, and SCO
Unix OpenServer.
Two separate high-performance SCSI cores with
integrated SCRIPTS processors
Local memory bus for BIOS storage, including
EPROM and FLASH memory
LSI Logic TolerANT™ active negation SCSI driver and
receiver technology
536 byte DMA FIFO on each channel allows PCI
burst length up to 128 dwords
4 KB SCRIPTS RAM on each channel reduces or
eliminates instruction fetches over the PCI bus
8 dword SCRIPTS instruction prefetch buffer to
reduce PCI bus overhead
41 scratchpad registers on each channel for user-
defined functions
SCSI bus loopback diagnostics to test cable integrity
SCAM (SCSI Configured AutoMatically) Level 1
functionality for SCSI plug and play support
Software drivers and SCRIPTS compatible with
SYM53C825A and SYM53C875 – software written
for the SYM53C875 operates as is with the
SYM53C876E
* A separate device in a 256-pin BGA package is available with two
differential channels (can be configured as single-ended).
SYM53C876 Multi-function Controller
Fixed disk, Optical Disk, Printer,
Tape, and Other Peripherals
SCSI Bus
SCSI Bus
PCI to
Ultra SCSI
PCI Bus
Interface
Controller
PCI Bus
Fixed disk, Optical Disk, Printer,
Tape, and Other Peripherals
PCI to
Ultra SCSI
PCI Graphic Accelerator
PCI Sound Card
Monitor
Processor Bus
Memory Controller
Speakers
Central
Processing
Unit
Typical PCI
Computer System
Architecture
Memory
(CPU)
Typical SYM53C876E SystemApplication
SYM53C876E Block Diagram
LSI Logic Sales Offices and Design Resource Centers
New Jersey
China
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Tel: 81.6.947.5281
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INTERNATIONAL
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©1999 by LSI Logic Corporation. All rights reserved.
An ISO 9001 Registered Company
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