lan91c100fd Standard Microsystems Corp., lan91c100fd Datasheet - Page 61

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

Note *: (holdt.)
Note **: (Setupt.)
SMSC DS – LAN91C100FD REV. B
WRITE DATA
READ DATA
t12
t13
t14
t15
t17
t19
t12
t13
t14
t15
t17
t18
t20
nRDYRTN
nRDYRTN
nDATACS
nDATACS
nCYCLE
nCYCLE
LCLK
W/nR
LCLK
W/nR
nDATACS Setup to Either nCYCLE or W/nR Falling
nDATACS Hold after Either nCYCLE or W/nR Rising
nRDYRTN Setup to LCLK Falling
nRDYRTN Hold after LCLK Falling
nCYCLE High and W/nR High Overlap
Data Delay from LCLK Rising (Read)
nDATACS Setup to Either nCYCLE or W/nR Falling
nDATACS Hold after Either nCYCLE or W/nR Rising
nRDYRTN Setup to LCLK Falling
nRDYRTN Hold after LCLK Falling
nCYCLE High and W/nR High Overlap
Data Setup to LCLK Rising (Write)
Data Hold from LCLK Rising (Write)
FIGURE 19 - BURST WRITE CYCLES - nVLBUS=1
FIGURE 20 - BURST READ CYCLES - nVLBUS=1
PARAMETER
PARAMETER
t17
t12
t12
t17
a
Page 61
a
t18
t19
b
t15
t14
t20
b
MIN
15
50
60
30
5*
2
t15
t14
MIN
60
30
15
50
13
2
5
TYP
TYP
c
MAX
38**
c
MAX
UNITS
Rev. 03-28-07
t17
t13
UNITS
ns
ns
ns
ns
ns
ns
t13
t17
ns
ns
ns
ns
ns
ns
ns