lan91c100fd Standard Microsystems Corp., lan91c100fd Datasheet - Page 60

• Manufacturer Part Number: lan91c100fd
• Description: Lan91c100fd Rev. B Feast Fast Ethernet Controller With Full Duplex Capability
• Manufacturer: Standard Microsystems Corp.

SMSC DS – LAN91C100FD REV. B
WRITE DATA
READ DATA
nRD, nWR
nDATACS
t5A
t1
t2
t3
t4
t5
nADS
A1-A15, AEN, nBE0-nBE3 Valid and nADS Low Setup to
nRD, nWR Active
A1-A15, AEN, nBE0-nBE3 Hold After nRD, nWR Inactive
(Assuming nADS Tied Low)
nRD Low to Valid Data
nRD High to Data Floating
Data Setup to nWR Inactive
Data Hold After nWR Inactive
(nDATACS Used to Select Data Register; Must Be 32 Bit Access)
FIGURE 18 - ASYNCHRONOUS CYCLE - nADS=0
t1
PARAMETER
Page 60
t3
D0-D31 valid
t5
MIN
25
20
30
5
t4
TYP
MAX
t5A
40
30
t2
Rev. 03-28-07
UNITS
ns
ns
ns
ns
ns
ns