Datasheet > ST78C36

ST78C36

更新时间： 2024-01-13 21:00:20

品牌	Logo	应用领域
艾科嘉 - EXAR		先进先出芯片
页数	文件大小	规格书
26页	126K
描述
ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO

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ST78C36 数据手册

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ST78C36/36A

ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO

FEBRUARY 2004

REV. 5.0.1

APPLICATIONS

GENERAL DESCRIPTION

• Printers, Scanners and other peripherals

• ZIP Drives and back up drives

• Printer Server

The ST78C36/36A is a monolithic Parallel Port

Interface for use with IBM PC compatible platforms.

Operation as a standard Centronics printer port is the

default, but software may re-configure the device to

support bi-directional IBM PS/2 parallel port,

Enhanced Parallel Port (EPP), or the Extended

Capabilities Port (ECP, as defined by Hewlett Packard

and Microsoft) modes. The ECP modes are

supported by a 16 byte FIFO that may be accessed

by programmed I/O or DMA cycles.

• Embedded Applications

FEATURES

•

IBM AT bus compatible

Bi-directional port capability

16 byte FIFO for ECP modes

On-chip oscillator (ST78C36A, ST78C36CQ64)

Software selectable Interrupt (5, 7, or 9) and 8-bit

DMA channel (ST78C36CQ64)

FIGURE 1. ST78C36/36A BLOCK DIAGRAM

D0-D7

-IOR

-IOW

Printer

FIFO

Registers

Printer

Data

Ports

PD0-PD7

RESET

-STROBE

INIT

-AUTOFDX

-SELCTIN

Printer

Control

Logic

A0-A2

A10

-CS

AEN

PE, SELECT

BUSY, -ACK

-ERROR

-IOR, -IOW

-IRQx

IOCHRDY

DRQx

XTAL2

XTAL1

Clock

Timing

Generator

PDIR

-DACKx

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com

12 3 4 5 6 7...26

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