W83977A Winbond Electronics Corp America, W83977A Datasheet - Page 105
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W83977A
Manufacturer Part Number
W83977A
Description
Winbond I/O
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977A.pdf
(160 pages)
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Table 10-1 IRQSER Sampling periods
10.4 Reset and Initialization
After MR reset, IRQSER Slaves are put into the Continuous(Idle) mode. The Host Controller is
responsible for starting the initial IRQSER Cycle to collect system's IRQ/Data default values. The
system then follows with the Continuous/Quiet mode protocol (Stop Frame pulse width) for
subsequent IRQSER cycles. It's the Host Controller's responsibility to provide the default values to
8259's and other system logic before the first IRQSER cycle is performed. For IRQSER system
suspend, insertion, or removal application, the Host controller should be programmed into
Continuous(Idle) mode first. This is to guarantee IRQSER bus in the Idle state before the system
configuration changes.
IRQ/Data Frame
32:22
10
11
12
13
14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
8
9
Signal Sampled
Unassigned
IOCHCK
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
INTC
INTD
INTA
INTB
IRQ0
IRQ1
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
SMI
-95 -
# of clocks past Start
Publication Release Date:March 1998
11
14
17
20
23
26
29
32
35
38
41
44
47
50
53
56
59
62
95
2
5
8
W83977TF
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