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零件编号
产品描述 (功能)
HD404314H 查看數據表(PDF) - Hitachi -> Renesas Electronics
零件编号
产品描述 (功能)
生产厂家
HD404314H
4-bit HMCS400-series microcomputer
Hitachi -> Renesas Electronics
HD404314H Datasheet PDF : 66 Pages
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HD404318 Series
Timer A interrupt
request flag
(IFTA)
System
clock
ø
PER
Selector
Prescaler S (PSS)
Timer
counter A
(TCA)
Overflow
3
Timer mode
register A
(TMA)
Figure 22 Timer A Block Diagram
Timer mode register A (TMA: $008)
Bit
Initial value
Read/Write
Bit name
3
—
—
Not used
2
0
W
TMA2
1
0
W
TMA1
0
0
W
TMA0
Source Input clock
TMA2 TMA1 TMA0 Prescaler frequency
0
0
0 PSS
1 PSS
1
0 PSS
1 PSS
1
0
0 PSS
1 PSS
1
0 PSS
1 PSS
2048t
cyc
1024t
cyc
512t
cyc
128t
cyc
32t
cyc
8t
cyc
4t
cyc
2t
cyc
Figure 23 Timer Mode Register A (TMA)
32
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