LAN91C100FD_08 Datasheet, PDF (69/77 Pages) SMSC Corporation – FEAST Fast Ethernet Controller with Full Duplex Capability

FEAST Fast Ethernet Controller with Full Duplex Capability
LCLK
nDATACS
W/nR
nCYCLE
WRITE DATA
nRDYRTN
t12
t17
a
t20
t18
b
t15
t14
t13
t17
c
Figure 9.4 - Burst Write 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
t18 Data Setup to LCLK Rising (Write)
t20 Data Hold from LCLK Rising (Write)
MIN TYP MAX UNITS
60
ns
30
ns
15
ns
2
ns
50
ns
13
ns
5
ns
SMSC LAN91C100FD Rev. D
Page 69
DATASHEET
Revision 1.0 (09-22-08)