FDC37C682 Standard Microsystems, FDC37C682 Datasheet - Page 3

• Manufacturer Part Number: FDC37C682
• Description: Controllers, 128 Enhanced Super I/O Controller Supporting GPI/OPins
• Manufacturer: Standard Microsystems

TABLE OF CONTENTS
FEATURES ........................................................................................................................................1
GENERAL DESCRIPTION .................................................................................................................2
PIN CONFIGURATION.......................................................................................................................4
DESCRIPTION OF PIN FUNCTIONS .................................................................................................5
FUNCTIONAL DESCRIPTION..........................................................................................................13
SUPER I/O REGISTERS ..................................................................................................................13
HOST PROCESSOR INTERFACE....................................................................................................13
FLOPPY DISK CONTROLLER .........................................................................................................15
FDC INTERNAL REGISTERS...........................................................................................................15
INSTRUCTION SET .........................................................................................................................42
SERIAL PORT (UART).....................................................................................................................69
INFRARED INTERFACE ..................................................................................................................83
PARALLEL PORT............................................................................................................................84
IBM XT/AT COMPATIBLE, BI-DIRECTIONAL AND EPP MODES ....................................................86
EXTENDED CAPABILITIES PARALLEL PORT .................................................................................92
AUTO POWER MANAGEMENT.....................................................................................................108
GENERAL PURPOSE I/O FUNCTIONAL DESCRIPTION...............................................................114
8042 KEYBOARD CONTROLLER FUNCTIONAL DESCRIPTION..................................................127
SYSTEM MANAGEMENT INTERRUPT (SMI) ................................................................................134
SMI TIMEOUT OVERRIDE.............................................................................................................135
SERIAL INTERRUPTS ...................................................................................................................136
CONFIGURATION .........................................................................................................................140
OPERATIONAL DESCRIPTION .....................................................................................................176
TIMING DIAGRAMS ......................................................................................................................180
ECP PARALLEL PORT TIMING ....................................................................................................200
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