W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 161

• Manufacturer Part Number: W83977AF
• Description: W83877TF Plus Kbc, Cir, RTC
• Manufacturer: Information Storage Devices, Inc

11.3.4 EPP Data or Address Read Cycle Timing Parameters
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 WAIT Deasserted
PD Hi-Z to WAIT Deasserted
WAIT Deasserted to IOCHRDY Deasserted
WRITE Deasserted to IOR Asserted
WAIT Asserted to WRITE Deasserted
WAIT Asserted to PD Hi-Z
WAIT Deasserted to PD Drive
WRITE Deasserted to Command
WAIT Deasserted to Command Deasserted
Deasserted to WRITE Modified
Asserted to Command Asserted
PARAMETER
- 149 -
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
W83977F/ W83977AF
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
MAX.
PRELIMINARY
160
185
190
180
190
195
180
10
24
75
40
85
50
20
30
12
Revision 0.58
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