SMSC DS – FDC37N958FR
Rev. 09/01/99
IR IRQS................................................................................................................................................ 101
PARALLEL PORT ............................................................................................................................... 102
PARALLEL PORT INTERFACE MULTIPLEXOR ............................................................................... 124
HOST (LEGACY) PARALLEL PORT INTERFACE (FDC37N958FR STANDARD)............................ 125
PARALLEL PORT FDC INTERFACE ................................................................................................. 125
PARALLEL PORT - 8051 CONTROL (FDC37N958FR STANDARD) ................................................ 126
8051 EMBEDDED CONTROLLER...................................................................................................... 127
FEATURES .......................................................................................................................................... 127
8051 FUNCTIONAL OVERVIEW......................................................................................................... 127
8051 MEMORY MAP ........................................................................................................................... 131
8051 CONTROL REGISTERS............................................................................................................. 136
WATCH DOG TIMER........................................................................................................................... 151
SHARED FLASH INTERFACE............................................................................................................ 153
8051 SYSTEM POWER MANAGEMENT ............................................................................................ 158
KEYBOARD CONTROLLER ............................................................................................................... 168
MAILBOX REGISTER INTERFACE .................................................................................................... 181
PS/2 INTERFACE DESCRIPTION....................................................................................................... 184
ACCESS.BUS INTERFACE DESCRIPTION ....................................................................................... 185
LED CONTROLS ................................................................................................................................. 189
PULSE WIDTH MODULATORS ..........................................................................................................190
REAL TIME CLOCK CMOS ACCESS................................................................................................. 190
8051 CONTROLLED PARALLEL PORT ............................................................................................ 193
8051 CONTROLLED IR PORT............................................................................................................ 196
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