PC87310 datasheet(1/52 Pages) NSC

Part #	PC87310

Description	PC87310 (SuperI/OTM) Dual UART with Floppy Disk Controller and Parallel Port

PDF	52 Pages

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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1 / 52 page

TLC10591

August 1990

PC87310 (SuperIOTM)

Dual UART with Floppy Disk Controller

and Parallel Port

General Description

The PC87310 incorporates two full function UARTs a flop-

py disk controller (FDC) with analog data separator one

parallel port game port decode hard disk controller de-

code standard XTAT address decoding for on-chip func-

tions and a Configuration Register in one chip Thus it of-

fers a single chip solution to the most commonly used

IBM PC XT and AT peripherals The floppy disk controller

is fully compatible with the industry standard 765 architec-

ture but it includes many more advanced options such as a

high performance data separator extended track range to

4096 implied seek command scan command and both

standard IBM formats as well as ISO 35

formats The

UARTs are compatible with either the INS8250N-B or the

NS16450 The parallel port hard disk select and game port

select logic maintain complete compatibility with the IBM XT

and AT Hardware selects XT or AT compatibility

The Configuration Register is one byte wide and can be

programmed via hardware or software Through its control

the user can assign standard AT addresses and disable any

major on-chip function (eg the FDC either UART or the

parallel port) independently of the others This allows for

flexibility in system configuration when adapter cards con-

tain duplicate functions

Features

Y

100% compatible to the IBM PC XT and AT

architectures

Y

Software compatible to the INS8250N-B INS8250A and

NS16450 UARTs

Y

100% compatible to the industry standard 765A

architecture

Y

On-chip analog data separator operates up to 1 Mbs

Y

Implements all DP8473 Floppy Disk Controller functions

Y

Bidirectional parallel port for printer or scanner opera-

tion Provides all standard Centronics and IBM PC XT

and AT interface signals

Y

Decoding and chip selects for an IDE hard disk

interface

Y

Address decoding and strobe generation for a game

port

Y

Fabricated in NSC’s 15 m M2CMOS process

Y

Low power CMOS with a power down mode

Y

100-pin EIAJ plastic flatpak package

Y

Integrates all PC-XT

PC-AT

logic

On chip 24 MHz crystal oscillator

DMA enable logic

IBM compatible address decode of A0 – A9

24 mA mP bus interface buffers

40 mA floppy drive interface buffers

Data rate and drive control registers

Y

Precision analog data separator

Self-calibrating PLL and delay line

Automatically chooses one of three filters

Intelligent read algorithm

Y

Two pin programmable precompensation modes

Y

Other enhancements

Implied seek up to 4000 tracks

IBM or ISO formatting

Y

Separate interrupt request lines for the parallel and se-

rial ports

Y

Adds or deletes standard asynchronous communication

bits (start parity and stop) to or from the serial data

Y

Independently controlled transmit receive line status

and data set interrupts

Y

Programmable baud generators for each UART channel

divide the input clock by 1 to (216 b 1) and generate

the internal 16 c sample clock

Y

MODEM control functions for each UART channel

(CTS RTS DSR DTR RI and DCD)

Y

Fully programmable serial-interface characteristics

5 6 7 or 8 bit characters

Even odd or no parity generation and detection

1 1

or 2 stop bit generation

Y

High current drive capability for the parallel port

Note

This part is patented

TRI-STATE

is a registered trademark of National Semiconductor Corporation

Plus-2TM and SuperIOTM are trademarks of National Semiconductor Corporation

IBM

PC-XT

PC-AT

and PS2

are registered trademarks of International Business Machines Corporation

C1995 National Semiconductor Corporation

RRD-B30M65Printed in U S A

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PC87310 Datasheet(PDF) 1 Page - National Semiconductor (TI)

PC87310 Datasheet(HTML) 1 Page - National Semiconductor (TI)

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