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H8/3028F 数据表(PDF) 838 Page - Renesas Technology Corp

部件名 H8/3028F
功能描述  Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
PDF  923 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8/3028F 数据表(HTML) 838 Page - Renesas Technology Corp

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Rev. 2.00, 09/03, page 808 of 890
TCSR—Timer Control/Status Register
H'FFF8C
WDT
Bit
Initial value
Read/Write
0
R/(W)
*
7
OVF
0
R/W
6
WT/
IT
0
R/W
5
TME
4
—
1
—
1
—
3
—
0
R/W
2
CKS2
0
R/W
1
CKS1
Clock select 2 to 0
0
0
φ/2
φ/32
φ/64
φ/128
φ/256
φ/512
φ/2048
φ/4096
1
0
CKS0
0
R/W
0
1
0
1
0
1
0
1
1
0
1
Note:
* Only 0 can be written, to clear the flag.
CKS2 CKS1 CKS0
Description
Timer enable
0
1
Timer disabled
• TCNT is initialized to H'00 and halted
Timer enabled
• TCNT is counting
Timer mode select
0
1
Interval timer:
requests interval timer interrupts
Watchdog timer:
generates a reset signal
Overflow flag
0
1
[Clearing condition]
Read OVF when OVF = 1, then write 0 in OVF
[Setting condition]
TCNT changes from H'FF to H'00



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