lan91c100fd Standard Microsystems Corp., lan91c100fd Datasheet - Page 65

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

Notes:
1.
2.
3.
CRS input might be asynchronous to RXC.
RXC starts after CRS goes active. RXC stops after CRS goes inactive.
COL is an asynchronous input.
SMSC DS – LAN91C100FD REV. B
TXEN
RXD
RXC
CRS
RXD0-RXD3
TXC
TXD
TXD0-TXD3
t27
t28
t29
t30
t31
t32
TXEN100
RX_DV
RX_ER
RX25
TXD0-TXD3, TXEN100 Delay from TX25 Rising
RXD0-RXD3, RX_DV, RX_ER Setup to RX25 Rising
RXD0-RXD3, RX_DV, RX_ER Hold After RX25 Rising
TXD, TXEN Delay from TXC Rising
RXD Setup to RXC Rising
RXD Hold After RXC Rising
PARAMETER
t30
t30
FIGURE 25 - ENDEC INTERFACE - 10 MBPS
PARAMETER
t27
FIGURE 26 - MII INTERFACE
t30
Page 65
t27
MIN
10
30
0
TYP
MIN
10
10
0
MAX
t29
40
TYP
t28
t28
MAX
15
t29
UNITS
t31
ns
ns
ns
UNITS
Rev. 03-28-07
ns
ns
ns
t32
t28