LAN91C100FD_08 Datasheet, PDF (74/77 Pages) SMSC Corporation – FEAST Fast Ethernet Controller with Full Duplex Capability

PARAMETER
t52 Read – nROE enable to RD0-RD31 Valid
t53 Read – nROE disable to RD0-RD31 Invalid
t50 Read/Write – Cycle Time
FEAST Fast Ethernet Controller with Full Duplex Capability
MIN TYP MAX
12
0
8
25
UNITS
ns
ns
ns
TXC
TXEN
TXD
RXD
RXC
CRS
t30
t30
t30
Figure 9.10 - ENDEC Interface - 10 Mbps
PARAMETER
t30 TXD, TXEN Delay from TXC Rising
t31 RXD Setup to RXC Rising
t32 RXD Hold After RXC Rising
MIN TYP
0
10
30
Notes:
1. CRS input might be asynchronous to RXC.
2. RXC starts after CRS goes active. RXC stops after CRS goes inactive.
3. COL is an asynchronous input.
MAX
40
t31
t32
UNITS
ns
ns
ns
Revision 1.0 (09-22-08)
Page 74
DATASHEET
SMSC LAN91C100FD Rev. D