SMC91C100 Datasheet, PDF (72/83 Pages) List of Unclassifed Manufacturers – FEAST Fast Ethernet Controller

TIMING DIAGRAMS
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Q$'6
5($''$7$
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:5,7('$7$
W
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FIGURE 13 - ASYNCHRONOUS CYCLE - nADS = 0
PARAMETER
MIN TYP MAX UNITS
t1 A1-A15, AEN, nBE0-nBE3 Valid and nADS Low Setup 25
ns
to nRD, nWR Active
t2 A1-A15, AEN, nBE0-nBE3 Hold After nRD, nWR
20
ns
Inactive (Assuming nADS Tied Low)
t3 nRD Low to Valid Data
40
ns
t4 nRD High to Data Floating
30
ns
t5 Data Setup to nWR Inactive
30
ns
t5A Data Hold After nWR Inactive
5
ns
72