FIGURE 15 - ASYNCHRONOUS CYCLE - nADS = 0
(nDATACS Used to Select Data Register; Must Be 32 Bit Access)
t2
nDATACS
nADS
t3
t4
READ DATA
nRD, nWR
t1
t5
t5A
WRITE DATA
D0-D31 valid
PARAMETER
MIN
TYP
MAX
UNITS
t1
t2
A1-A15, AEN, nBE0-nBE3 Valid and nADS Low Setup
to nRD, nWR Active
25
ns
A1-A15, AEN, nBE0-nBE3 Hold After nRD, nWR
Inactive (Assuming nADS Tied Low)
20
ns
t3
t4
nRD Low to Valid Data
40
30
ns
ns
ns
ns
nRD High to Data Floating
Data Setup to nWR Inactive
Data Hold After nWR Inactive
t5
30
5
t5A
74