![Hitachi H8/3008 Hardware Manual Download Page 575](http://html.mh-extra.com/html/hitachi/h8-3008/h8-3008_hardware-manual_140473575.webp)
559
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
Timer enable
0
Timer disabled:
TCNT is initialized to H'00 and halted
1
Timer enabled:
TCNT starts counting up
Timer mode select
0
Interval timer:
requests interval timer interrupts
1
Watchdog timer:
generates a reset signal
Overflow flag
0
[Clearing condition]
Read OVF when OVF = 1, then write 0 in OVF
1
[Setting condition]
TCNT changes from H'FF to H'00
Note: * Only 0 can be written to clear the flag.
CKS2 CKS1 CKS0
Description
Summary of Contents for H8/3008
Page 1: ...Hitachi 16 Bit Microcomputer H8 3008 Hardware Manual ADE 602 221 Rev 1 0 9 14 00 Hitachi Ltd ...
Page 4: ......
Page 17: ...xii ...
Page 70: ...54 ...
Page 114: ...98 ...
Page 154: ...138 ...
Page 314: ...298 ...
Page 412: ...396 ...
Page 496: ...480 ...