SMC91C100 Datasheet, PDF (48/83 Pages) List of Unclassifed Manufacturers – FEAST Fast Ethernet Controller

I/O SPACE - BANK 7
OFFSET
NAME
TYPE
SYMBOL
0 THROUGH 7
EXTERNAL REGISTERS
nCSOUT is driven low by the SMC91C100 when a valid access to the EXTERNAL REGISTER range
occurs.
HIGH
BYTE
EXTERNAL R/W REGISTER
LOW
BYTE
EXTERNAL R/W REGISTER
CYCLE
AEN=0
A3=0
A4-15 matches I/O BASE
BANK SELECT = 7
BANK SELECT = 4,5,6
Otherwise
nCSOUT
SMC91C100 DATA BUS
Driven low. Transparently Ignored on writes.
latched on nADS rising Tri-stated on reads.
edge.
High
High
Ignore cycle.
Normal SMC91C100 cycle.
48