LAN91C100FD_0601 Datasheet, PDF (40/78 Pages) SMSC Corporation – FEAST Fast Ethernet Controller with Full Duplex Capability

FEAST Fast Ethernet Controller with Full Duplex Capability
BANK7
OFFSET
0 THROUGH 7
NAME
EXTERNAL REGISTERS
TYPE
SYMBOL
nCSOUT is driven low by the LAN91C100FD 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
Driven low. Transparently
latched on nADS rising edge.
LAN91C100FD DATA BUS
Ignored on writes.
Tri-stated on reads.
High
High
Ignore cycle.
Normal LAN91C100FD cycle.
Rev. 01-20-06
Page 40
DATASHEET
SMSC DS – LAN91C100FD Rev. D