W83977EG Datasheet, PDF (122/142 Pages) Winbond – WINBOND ISA I/O

W83977EF-AW/W83977EG-AW
13.3.5 EPP Data or Address Write Cycle Timing Parameters
PARAMETER
Ax Valid to IOW# Asserted
SD Valid to Asserted
IOW# Deasserted to Ax Invalid
WAIT# Deasserted to IOCHRDY Deasserted
Command Asserted to WAIT# Deasserted
IOW# Deasserted to IOW# or IOR# Asserted
IOCHRDY Deasserted to IOW# Deasserted
WAIT# Asserted to Command Asserted
IOW# Asserted to WAIT# Asserted
PBDIR Low to WRITE# Asserted
WAIT# Asserted to WARIT# Asserted
WAIT# Asserted to WRITE# Change
IOW# Asserted to PD Valid
WAIT# Asserted to PD Invalid
PD Invalid to Command Asserted
IOW# to Command Asserted
WAIT# Asserted to Command Asserted
WAIT# Deasserted to Command Deasserted
Command Asserted to WAIT# Deasserted
SYM.
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
t12
t13
t14
t15
t16
t17
t18
t19
MIN.
40
10
10
0
10
40
0
60
0
0
60
60
0
0
10
5
60
60
0
Time out
Command Deasserted to WAIT# Asserted
IOW# Deasserted to WRITE# Deasserted and PD
invalid
t20
10
t21
0
t22
0
MAX.
24
160
70
185
185
50
35
210
190
10
12
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
μS
μS
nS
nS
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