PPC34C60 datasheet, PDF - EEWORLD Datasheet

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PPC34C60: DescriptionPARALLEL PORT INTERFACE CHIP PERIPHERAL SIDE; File Size356KB，58 Pages; ManufacturerSMSC; Websitehttp://www.smsc.com/

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PPC34C60 Overview

PARALLEL PORT INTERFACE CHIP PERIPHERAL SIDE

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PPC34C60

Parallel Port Interface Chip - Peripheral Side

FEATURES

Creates PC/AT-Style Bus from Parallel Printer Port

Signals

Single Chip Interface to Any Bus Capable Peripheral

Supports Standard, Bi-Directional, EPP, and ECP

Parallel Ports

Burst Mode for Improved Data Transfer Rates

Adaptive Interface Optimizes Transfer Rates to

Parallel Port Characteristics

Digital Signal Filtering Increases Noise Immunity

Allows Daisy-Chain of up to Eight Peripherals

Including Standard Printer

Provides Interrupt Sharing with Daisy-Chained

Devices

16-Bit Product ID Support

Peripheral Bus Clock Selectable at System Clock /2,

/3, /5, or /6

Interfaces to 8-Bit and/or 16-Bit Peripherals

FIFO Operation Permits Overlapping Parallel Port and

Peripheral Bus Cycles for Maximum Data Transfer

Rate

Flexible DRAM Buffer Support and DMA Capability

Four Output Lines Individually Configurable as Chip

Selects or General Purpose Outputs

Three Output Lines Individually Configurable as

Strobes or General Purpose Outputs

Four Uncommitted Inputs

Watchdog Monitors Host Computer Activity

Low Battery Detect Input

Direct Output for Piezo Transducer

Support for Automatic Power Up/Down

Prevents Host System Latchup with Powerback

Control

On Chip Crystal Oscillator

GENERAL DESCRIPTION

The PPC34C60 provides a means of re-generating an IBM AT style (ISA) bus from the PC printer port signals. In addition

to Standard (Compatible) printer ports, the PPC34C60 supports PS/2 (bi-directional), EPP, and ECP ports. Up to eight

peripherals may be daisy chained between the computer and the printer. Printer operation is unaffected.

The PPC34C60 performs as an intelligent data mux. It multiplexes the printer port signals between the daisy chain

(pass-through) outputs and there-generated ISA bus. Furthermore, it handles breaking up 8- and 16-bit ISA data into 4- or

8-bit chunks for the parallel port.

The PPC34C60 also provides a piezo transducer driver for battery-powered systems. The transducer will signal low battery

with two repeated beeps. If the cable to the computer is disconnected, or if the host is dormant for about a minute, the

transducer will signal inactivity with four beeps. Additionally, a power-down signal can be provided to external circuitry to

automatically shut down system power during inactivity.

SMSC DS – PPC34C60

Rev. 06/01/2001

ADVANCED INFORMATION

80 Arkay Drive

Hauppauge, NY 11788

(631) 435-6000

FAX (631) 273-3123

Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete

information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no

responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without

notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does

not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC

or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC's standard

Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors

known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon request.

SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause

or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further

testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale

Agreement, may be obtained by visiting SMSC’s website at http://www.smsc.com. SMSC is a registered trademark of Standard Microsystems

Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders.

SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES

OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND

ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE.

IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES;

OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON

CONTRACT; TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR

NOT ANY REMEDY OF BUYER IS HELD TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN

ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

SMSC DS – PPC34C60

Page 2

Rev. 06/01/2001

ADVANCED INFORMATION

TABLE OF CONTENTS

1.1

1.2

1.3

3.1

3.2

3.3

3.4

5.1

8.1

PIN CONFIGURATION ..........................................................................................................................................4

Buffer Type Descriptions...........................................................................................................................11

General Conventions .................................................................................................................................11

Reference Documents ...............................................................................................................................11

PPC34C60 BLOCK DESCRIPTION ....................................................................................................................12

DAISY CHAIN COMMAND PROTOCOL.............................................................................................................13

Peripheral System Design .........................................................................................................................14

Design Example .........................................................................................................................................15

Device Addressing .....................................................................................................................................16

Internal Register Map.................................................................................................................................18

REGISTER DESCRIPTIONS ...............................................................................................................................19

DRAM BUFFER OPERATION.............................................................................................................................29

Dram Physical Addressing........................................................................................................................30

SYSTEM DATA BUS CYCLES ...........................................................................................................................31

OPERATIONAL DESCRIPTION..........................................................................................................................34

TIMING DIAGRAMS ............................................................................................................................................36

DMA Transfer Cycle Timing ......................................................................................................................57

SMSC DS – PPC34C60

Page 3

Rev. 06/01/2001

ADVANCED INFORMATION

PPC34C60 Related Products

	PPC34C60	34C60
Description	PARALLEL PORT INTERFACE CHIP PERIPHERAL SIDE	PARALLEL PORT INTERFACE CHIP PERIPHERAL SIDE

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