W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 165
W83977AF
Manufacturer Part Number
W83977AF
Description
W83877TF Plus Kbc, Cir, RTC
Manufacturer
Information Storage Devices, Inc
Datasheet
1.W83977AF.pdf
(181 pages)
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11.3.10
t
t
t
t
t
t
t
t
t
Note : Refer to Microprocessor Interface Timing for Read Timing.
SYMBOL
WGO
SWP
SWE
PORW
POWR
RIO
RPO
RTO
RINW
GPIO, ACPI, ROM Interface Timing Parameters
Write data to GPIO update
SWITCH pulse width
Delay from SWITCH events to PSCTRL , and from
SWITCH Off event to SMI
Delay from APCI Reg.1 write to SMI inactive
(level mode)
Delay from RIA B , KCLK, MCLK, PWAKIN1,
PWAKIN2 to PSCTRL
Delay from PHRI pulse to PSCTRL
Delay from PHRI pulse train to PSCTRL
PHRI width (high and low time)
SMI pulse width (edge mode)
PARAMETER
- 153 -
W83977F/ W83977AF
Publication Release Date: March 1998
0.125
MIN.
16
14
30
10
-
-
-
300(Note 1)
MAX.
0.190
PRELIMINARY
16
90
25
25
25
-
Revision 0.58
UNIT
msec
msec
nsec
nsec
sec
sec
ns
ns
s
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