Datasheet > STP2000QFP

STP2000QFP

更新时间： 2024-11-22 23:35:19

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
20页	218K
描述
I/O Controller

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数据手册

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STP2000QFP 数据手册

STP2000QFP

July 1997

Master I/O

32-bit SBus Master I/ O Controller

DATA SHEET

DESCRIPTION

The STP2000 Master I/ O Controller is an integrated SBus master device with built-in standard I/ O capabili-

ties for general purpose computing or embedded applications. The STP2000 directly interfaces the CPU

through the system bus, SBus, to three major I/ O channels for peripherals. The I/ O channels include SCSI-II,

ethernet and a parallel port. Together, with the STP2001 Slave I/ O Controller, it provides a complete I/ O

subsystem.

The STP2000 SBus interface is a 32-bit interface that supports both DMA and slave modes. There is data buff-

ering and ﬂow control on each of the I/ O channels. Each channel has access to the SBus through the controller

which is capable of DMA transfers of up to 32-byte bursts. The SBus slave port is used mostly for status and

control.

The STP2000 incorporates an ethernet controller, a Fast 8-bit SCSI-II controller, and a Centronics parallel port

controller in a single package. The SCSI-II channel directly drives external peripherals. The ethernet channel

can be connected to an external transceiver chip that supports twisted pair ethernet or AUI ethernet. The par-

allel port channel can be routed to external transceivers.

Features

Beneﬁts

• Single-chip solution to standard SPARC DVMA devices

• Saves cost, power, board space, and weight

• Standard low-cost solution

• Compatible with microSPARC, SuperSPARC and any

SBus based system

• Supports concurrent 10 MByte/sec SCSI transfers,

1.25 MByte/sec Ethernet transfers, and 4 MByte/sec

Parallel Port transfers

• Improved system performance

• Direct master/slave SBus interface

• Improved system performance

• Improved chip and board level testability

• Cost effective packaging

• JTAG internal and boundary SCAN logic

• 160-pin PQFP packaging

• IC is also available from NCR Corp. (PN - NCR89C100)

• Second source

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