TABLE OF CONTENTS
FEATURES............................................................................................................................................ 1
GENERAL DESCRIPTION..................................................................................................................... 3
PIN CONFIGURATION ........................................................................................................................... 4
DESCRIPTION OF PIN FUNCTIONS..................................................................................................... 6
FUNCTIONAL DESCRIPTION............................................................................................................. 17
SUPER I/O REGISTERS.................................................................................................................. 17
HOST PROCESSOR INTERFACE.................................................................................................. 17
FLOPPY DISK CONTROLLER........................................................................................................ 18
FLOPPY DISK CONTROLLER INTERNAL REGISTERS ................................................................ 18
COMMAND SET/DESCRIPTIONS....................................................................................................... 41
INSTRUCTION SET.............................................................................................................................. 45
PARALLEL PORT FLOPPY DISK CONTROLLER ................................................................................ 71
SERIAL PORT (UART) ......................................................................................................................... 73
INFRARED INTERFACE........................................................................................................................ 87
PARALLEL PORT................................................................................................................................ 88
IBM XT/AT COMPATIBLE, BI-DIRECTIONAL AND EPP MODES................................................... 90
EXTENDED CAPABILITIES PARALLEL PORT.............................................................................. 96
AUTO POWER MANAGEMENT.......................................................................................................... 109
INTEGRATED DRIVE ELECTRONICS INTERFACE......................................................................... 114
CONFIGURATION .............................................................................................................................. 118
OPERATIONAL DESCRIPTION ......................................................................................................... 137
MAXIMUM GUARANTEED RATINGS........................................................................................... 137
DC ELECTRICAL CHARACTERISTICS....................................................................................... 137
TIMING DIAGRAMS............................................................................................................................ 140
ECP PARALLEL PORT TIMING..................................................................................................... 157
2
SMSC [ SMSC CORPORATION ]
