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FDC37B727 Datasheet(PDF) 3 Page - SMSC Corporation

Part No. FDC37B727
Description  128 Pin Enhanced Super I/O Controller with ACPI Support
Download  244 Pages
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Maker  SMSC [SMSC Corporation]
Homepage  http://www.smsc.com
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TABLE OF CONTENTS
FEATURES ....................................................................................................................................... 1
GENERAL DESCRIPTION................................................................................................................. 5
DESCRIPTION OF PIN FUNCTIONS ................................................................................................ 7
BUFFER TYPE DESCRIPTIONS........................................................................................ 10
GENERAL PURPOSE I/O PINS....................................................................................................... 11
REFERENCE DOCUMENTS ........................................................................................................... 12
FUNCTIONAL DESCRIPTION ......................................................................................................... 14
SUPER I/O REGISTERS.................................................................................................... 14
HOST PROCESSOR INTERFACE ..................................................................................... 14
FLOPPY DISK CONTROLLER ........................................................................................................ 15
FDC INTERNAL REGISTERS.......................................................................................................... 15
COMMAND SET/DESCRIPTIONS ................................................................................................... 38
INSTRUCTION SET ........................................................................................................................ 41
DATA TRANSFER COMMANDS ........................................................................................ 53
CONTROL COMMANDS.................................................................................................... 62
SERIAL PORT (UART) .................................................................................................................... 69
INFRARED INTERFACE .................................................................................................... 85
PARALLEL PORT............................................................................................................................ 86
IBM XT/AT COMPATIBLE, BI-DIRECTIONAL AND EPP MODES....................................... 88
EXTENDED CAPABILITIES PARALLEL PORT ................................................................................ 94
OPERATION.....................................................................................................................102
PARALLEL PORT FLOPPY DISK CONTROLLER...........................................................................107
POWER MANAGEMENT................................................................................................................109
UART POWER MANAGEMENT ........................................................................................113
PARALLEL PORT .............................................................................................................113
INTERNAL PWRGOOD ....................................................................................................113
32.768 KHZ STANDBY CLOCK OUTPUT...........................................................................114
SERIAL IRQ ...................................................................................................................................115
BIOS BUFFER................................................................................................................................120
GENERAL PURPOSE I/O...............................................................................................................121
DESCRIPTION .................................................................................................................121
RUN STATE GPIO DATA REGISTER ACCESS ................................................................122
GPIO CONFIGURATION ..................................................................................................123
WATCH DOG TIMER .....................................................................................................................126
8042 KEYBOARD CONTROLLER DESCRIPTION ..........................................................................128
SOFT POWER MANAGEMENT......................................................................................................136
BUTTON OVERRIDE FEATURE .......................................................................................139




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