FDC37C665GT datasheet(2/152 Pages) SMSC

2 / 152 page

Supports Four Floppy Drives Directly

(Standard and Enhanced Modes)

General Purpose 11 Bit Address Decoder

Game Port Select Logic (FDC37C666GT

Only)

100 Pin QFP Package

TABLE OF CONTENTS

FEATURES ...................................................................................................................................... 1

GENERAL DESCRIPTION................................................................................................................ 3

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

DESCRIPTION OF PIN FUNCTIONS ................................................................................................ 5

FUNCTIONAL DESCRIPTION ........................................................................................................ 22

SUPER I/O REGISTERS ...........................................................................................................22

HOST PROCESSOR INTERFACE............................................................................................ 22

FLOPPY DISK CONTROLLER.................................................................................................. 23

FLOPPY DISK CONTROLLER INTERNAL REGISTERS ............................................................23

COMMAND SET/DESCRIPTIONS .................................................................................................. 46

INSTRUCTION SET ........................................................................................................................ 50

PARALLEL PORT FLOPPY DISK CONTROLLER.............................................................................76

SERIAL PORT (UART) .................................................................................................................... 78

PARALLEL PORT........................................................................................................................... 92

IBM XT/AT COMPATIBLE, BI-DIRECTIONAL AND EPP MODES...............................................94

EXTENDED CAPABILITIES PARALLEL PORT ........................................................................100

INTEGRATED DRIVE ELECTRONICS INTERFACE ..................................................................... 113

CONFIGURATION......................................................................................................................... 117

OPERATIONAL DESCRIPTION..................................................................................................... 131

MAXIMUM GUARANTEED RATINGS ..................................................................................... 131

DC ELECTRICAL CHARACTERISTICS ................................................................................. 131

TIMING DIAGRAMS ...................................................................................................................... 134

ECP PARALLEL PORT TIMING...............................................................................................147

FDC37C665GT Datasheet(PDF) 2 Page - SMSC Corporation