ADP315PC87570 National Semiconductor, ADP315PC87570 Datasheet - Page 148
ADP315PC87570
Manufacturer Part Number
ADP315PC87570
Description
Keyboard and Power Management Controller
Manufacturer
National Semiconductor
Datasheet
1.ADP315PC87570.pdf
(168 pages)
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Bus State
CLK
A0-18
D0-15
RD
WR0-1
BST0-2
SELn,
SELIO
CLK
A0-18
SELx
SELy
D0-15
RD
WR0-1
BST0-2
Figure 19-11. Normal Read Bus Cycle (2 Internal Waits, and 1 Hold), AC Timing
(x
(y
y)
x)
t
t
5
5
T
, t
, t
Idle
12
12
Figure 19-12. Fast Read Bus Cycle, AC Timing
t
4
, t
Read
Fast
t
t
3
T1-2
4
13
, t
T1
t
13
t
5
3
In
t
, t
1
12
Device Specifications
t
4
, t
t
t
T1
3
4
13
t
t
t
, t
, t
Late Write
5
2
5
TIW
, t
, t
t
12
13
5
12
12
, t
148
12
T2
Out
TIW
Cycle
Idle
t
t
T
5
5
t
1
, t
Idle
T2
, t
12
12
Read
Fast
T1-2
T
hold
In
t
2
T1
t
3
, t
12
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