FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

TABLE OF CONTENTS

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

GENERAL DESCRIPTION................................................................................................... 5

DESCRIPTION OF PIN FUNCTIONS .................................................................................. 7

BUFFER TYPE DESCRIPTIONS........................................................................................12

REFERENCE DOCUMENTS ..............................................................................................14

FUNCTIONAL DESCRIPTION ............................................................................................15

SUPER I/O REGISTERS.................................................................................................15

HOST PROCESSOR INTERFACE..................................................................................15

FLOPPY DISK CONTROLLER ...........................................................................................16

FDC INTERNAL REGISTERS......................................................................................16

COMMAND SET/DESCRIPTIONS...............................................................................41

Force Write Protect ......................................................................................................70

SERIAL PORT (UART) .......................................................................................................71

REGISTER DESCRIPTION..........................................................................................71

INFRARED INTERFACE.....................................................................................................87

PARALLEL PORT ...............................................................................................................88

IBM XT/AT COMPATIBLE, BI-DIRECTIONAL AND EPP MODES ......................................90

EXTENDED CAPABILITIES PARALLEL PORT ..................................................................96

PARALLEL PORT FLOPPY DISK CONTROLLER.........................................................109

POWER MANAGEMENT..................................................................................................111

FDC Power Management ...........................................................................................111

UART Power Management.........................................................................................115

Parallel Port ...............................................................................................................115

VBAT Support...............................................................................................................115

VTR Support................................................................................................................115

Internal PWRGOOD...................................................................................................116

CIRCC PLL Power Control .........................................................................................116

32.768 kHz Standby Clock Output..............................................................................116

BIOS BUFFER..................................................................................................................122

GENERAL PURPOSE I/O.................................................................................................123

Description .................................................................................................................123

RUN STATE GPIO DATA REGISTER ACCESS ........................................................125

GPIO OPERATION....................................................................................................127

8042 KEYBOARD CONTROLLER DESCRIPTION ...........................................................129

RTC INTERFACE .............................................................................................................138

SOFT POWER MANAGEMENT .......................................................................................148

ACPI/PME/SMI FEATURES..............................................................................................152

ACPI Features............................................................................................................152

Wake Events..............................................................................................................153

PME SUPPORT.........................................................................................................154

ACPI/PME/SMI REGISTERS.........................................................................................155

Register Description ...................................................................................................155

Wakeup Event Configuration is Retained by Battery Power........................................155

Register Block............................................................................................................156

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