W83977A Winbond Electronics Corp America, W83977A Datasheet - Page 141

• Manufacturer Part Number: W83977A
• Description: Winbond I/O
• Manufacturer: Winbond Electronics Corp America

12.3.4 EPP Data or Address Read Cycle Timing Parameters
PARAMETER
Ax Valid to IOR Asserted
IOCHRDY Deasserted to IOR Deasserted
IOR Deasserted to Ax Valid
IOR Deasserted to IOW or IOR Asserted
IOR Asserted to IOCHRDY Asserted
PD Valid to SD Valid
IOR Deasserted to SD Hi-Z (Hold Time)
SD Valid to IOCHRDY Deasserted
PD Hi-Z to PDBIR Set
IOR Asserted to PD Hi-Z
Command Asserted to PD Valid
Command Deasserted to PD Hi-Z
PBDIR Set to Command
PD Hi-Z to Command Asserted
Time out
PD Valid to
PD Hi-Z to
WAIT Deasserted to IOCHRDY Deasserted
WRITE Deasserted to IOR Asserted
WAIT Asserted to WRITE Deasserted
WAIT Asserted to PD Hi-Z
WAIT
WRITE
WAIT
Asserted to Command Asserted
Deasserted to WRITE Modified
Deasserted to PD Drive
Deasserted to Command Deasserted
Deasserted to Command
WAIT
WAIT
Deasserted
Deasserted
- 130 -
SYM.
t10
t13
t14
t15
t16
t17
t18
t19
t20
t21
t22
t23
t24
t25
t26
t27
t28
t1
t2
t3
t4
t5
t6
t7
t8
t9
Publication Release Date: March 1998
MIN.
40
10
40
60
60
60
60
60
10
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
PRELIMINARY
MAX.
160
185
190
180
190
195
180
W83977TF
10
24
75
40
85
50
20
30
12
Revision 0.62
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
S
S