TABLE OF CONTENTS
FEATURES
........................................................................................................................................... 1
GENERAL DESCRIPTION
................................................................................................................. 6
DESCRIPTION OF PIN FUNCTIONS...............................................................................................
7
BUFFER TYPE DESCRIPTIONS
.................................................................................................... 11
REFERENCE DOCUMENTS
........................................................................................................... 13
FUNCTIONAL DESCRIPTION.........................................................................................................
14
SUPER I/O REGISTERS
............................................................................................................... 14
HOST PROCESSOR INTERFACE
.............................................................................................. 14
FLOPPY DISK CONTROLLER....................................................................................................... 16
FDC INTERNAL REGISTERS
................................................................................................. 16
COMMAND SET/DESCRIPTIONS..........................................................................................
41
Force Write Protect
.................................................................................................................. 70
SERIAL PORT (UART)
..................................................................................................................... 70
REGISTER DESCRIPTION
...................................................................................................... 70
INFRARED INTERFACE
.................................................................................................................. 88
PARALLEL PORT
............................................................................................................................. 88
IBM XT/AT COMPATIBLE, BI-DIRECTIONAL AND EPP MODES........................................ 90
EXTENDED CAPABILITIES PARALLEL PORT..........................................................................
96
PARALLEL PORT FLOPPY DISK CONTROLLER..................................................................
108
POWER MANAGEMENT................................................................................................................
110
FDC Power Management
...................................................................................................... 110
UART Power Management
................................................................................................... 115
Parallel Port..............................................................................................................................
115
V
BAT
Support
............................................................................................................................ 115
V
TR
Support
.............................................................................................................................. 115
Internal PWRGOOD................................................................................................................
116
CIRCC PLL Power Control
................................................................................................... 116
32.768 kHz Standby Clock Output......................................................................................
116
BIOS BUFFER..................................................................................................................................
121
GENERAL PURPOSE I/O
.............................................................................................................. 123
3
SMSC [ SMSC CORPORATION ]
