W83977A Winbond Electronics Corp America, W83977A Datasheet - Page 142

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

12.3.5 EPP Data or Address Write Cycle Timing Parameters
PARAMETER
Ax Valid to IOW Asserted
SD Valid to Asserted
IOW Deasserted to Ax Invalid
Command Asserted to WAIT Deasserted
IOW Deasserted to IOW or IOR Asserted
IOCHRDY Deasserted to IOW Deasserted
IOW Asserted to WAIT Asserted
PBDIR Low to WRITE Asserted
IOW Asserted to PD Valid
PD Invalid to Command Asserted
IOW to Command Asserted
Command Asserted to
Time out
Command Deasserted to
IOW
WAIT Deasserted to IOCHRDY Deasserted
WAIT Asserted to Command Asserted
WAIT Asserted to WRITE Asserted
WAIT Asserted to WRITE Change
WAIT Asserted to PD Invalid
WAIT Asserted to Command Asserted
WAIT
Deasserted to
Deasserted to Command Deasserted
WRITE
WAIT
WAIT
Deasserted and PD invalid
Deasserted
Asserted
- 131 -
SYM.
t10
t11
t12
t13
t14
t15
t16
t17
t18
t19
t20
t21
t22
t1
t2
t3
t4
t5
t6
t7
t8
t9
Publication Release Date: March 1998
MIN.
40
10
10
10
40
60
60
60
10
60
60
10
0
0
0
0
0
0
5
0
0
0
PRELIMINARY
MAX.
160
185
185
210
190
24
70
50
35
10
12
W83977TF
Revision 0.62
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
S
S