FDC37C669FR View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37C669FR

Super I/O Floppy Disk Controller with Fast Infrared Support

SMSC -> Microchip 

nCS

nIOR

nIOW

AEN

A0-A10

D0-D7

DRQ_A-C

nDACK_A-C

TC

IRQA

IRQ_C-F

RESET

IRQIN

IOCHRDY

5V

Vcc (2)

HOST

CPU

INTERFACE

Vss (4)

PWRGD

POWER

MANAGEMENT

DATA BUS

ADDRESS BUS

CLOCK

GEN

CONFIGURATION

REGISTERS

CONTROL BUS

WDATA

WCLOCK

SMSC

PROPRIETARY

82077 COMPATIBLE

VERTICAL

FLOPPYDISK

CONTROLLER

CORE

DIGITAL

DATA

SEPARATOR

WITH WRITE

PRECOM-

PENSATION

RCLOCK

RDATA

MULTI-MODE

PARALLEL

PORT/FDC

MUX

GENERAL

PURPOSE

ADDRESS

DECODER

PD0-7

BUSY, SLCT, PE,

nERROR, nACK

nSTROBE, nSLCTIN,

nINIT, nAUTOFD

ADRX

16C550

COMPATIBLE

SERIAL

PORT 1

TXD1, nCTS1, nRTS1

RXD1

nDSR1, nDCD1, nRI, nDTR1

16C550

COMPATIBLE

SERIAL

PORT 2 WITH

INFRARED

IR Mode, IRR3*

TXD2(IRTX),nCTS2,nRTS2

RXD2(IRRX)

nDSR2,nDCD2,nRI2,nDTR2

IDE

INTERFACE

nIDEEN(IRQH)

nHDCSO(IRRX2)

nHDCS1(IRTX2)

14.318

CLOCK

nINDEX nDIR nDS0,1,2

nTRK0 nSTEP nMTR0,1,2

nDSKCHG DRVDEN0

nWDATA nRDATA

nWRPRT DRVDEN1

nWGATE

DRV2(nADRX)(IRQB)

*Multifunction Pin

GAME

PORT

DECODER nGAMECS

FIGURE 1 - FDC37C669FR BLOCK DIAGRAM

17

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