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37B77X Datasheet(PDF) 3 Page - SMSC Corporation

Part No. 37B77X
Description  ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES
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Maker  SMSC [SMSC Corporation]
Homepage  http://www.smsc.com
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 3 page
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TABLE OF CONTENTS
FEATURES ......................................................................................................................... 1
GENERAL DESCRIPTION .................................................................................................. 2
PIN CONFIGURATION ........................................................................................................ 5
DESCRIPTION OF PIN FUNCTIONS .................................................................................. 6
DESCRIPTION OF MULTIFUNCTION PINS ......................................................................10
REFERENCE DOCUMENTS ..............................................................................................10
FUNCTIONAL DESCRIPTION............................................................................................12
SUPER I/O REGISTERS ................................................................................................12
HOST PROCESSOR INTERFACE .................................................................................12
FLOPPY DISK CONTROLLER ..........................................................................................13
FDC INTERNAL REGISTERS ........................................................................................13
COMMAND SET/DESCRIPTIONS......................................................................................36
INSTRUCTION SET ...........................................................................................................40
SERIAL PORT (UART).......................................................................................................66
INFRARED INTERFACE ....................................................................................................80
PARALLEL PORT ..............................................................................................................81
IBM XT/AT COMPATIBLE, BI-DIRECTIONAL AND EPP MODES ..................................83
EXTENDED CAPABILITIES PARALLEL PORT...............................................................90
PARALLEL PORT FLOPPY DISK CONTROLLER ..........................................................104
POWER MANAGEMENT..................................................................................................106
VTR SUPPORT ..............................................................................................................106
SERIAL IRQ .....................................................................................................................112
GP INDEX REGISTERS ...................................................................................................117
WATCH DOG TIMER .......................................................................................................119
8042 KEYBOARD CONTROLLER DESCRIPTION ..........................................................120
SYSTEM MANAGEMENT INTERRUPT (SMI)..................................................................129
PME SUPPORT............................................................................................................129
CONFIGURATION............................................................................................................131
OPERATIONAL DESCRIPTION .......................................................................................160
MAXIMUM GUARANTEED RATINGS* .........................................................................160




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