LAN91C100FD_0601 Datasheet, PDF (71/78 Pages) SMSC Corporation – FEAST Fast Ethernet Controller with Full Duplex Capability

FEAST Fast Ethernet Controller with Full Duplex Capability
LCLK
nDATACS
W/nR
READ DATA
nRDYRTN
nCYCLE
t12
t13
t17
t19
a
b
c
t15
t14
t17
Figure 9.5 - Burst Read Cycles - nVLBUS=1
PARAMETER
t12 nDATACS Setup to Either nCYCLE or W/nR Falling
t13 nDATACS Hold after Either nCYCLE or W/nR Rising
t14 nRDYRTN Setup to LCLK Falling
t15 nRDYRTN Hold after LCLK Falling
t17 nCYCLE High and W/nR High Overlap
t19 Data Delay from LCLK Rising (Read)
Note 9.1 (holdt.)
Note 9.2 (Setupt.)
MIN
60
30
15
2
50
5
(Note
9.1)
TYP
MAX
38
(Note
9.2)
UNITS
ns
ns
ns
ns
ns
ns
SMSC DS – LAN91C100FD Rev. D
Page 71
DATASHEET
Rev. 01-20-06