HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 616

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Appendix B Internal I/O Registers
TCSR—Timer Control/Status Register
Rev.4.00 Aug. 20, 2007 Page 572 of 638
REJ09B0395-0400
Note: * Only 0 can be written to clear the flag.
Initial value
Read/Write
Bit
Overflow flag
R/(W)*
0
1
OVF
7
0
[Clearing condition]
[Setting condition]
Read OVF when OVF = 1, then write 0 in OVF
TCNT changes from H'FF to H'00
Timer mode select
0
1
WT/IT
R/W
0
6
Interval timer:
requests interval timer interrupts
Watchdog timer:
generates a reset signal
Timer enable
TME
R/W
0
1
5
0
Timer disabled:
TCNT is initialized to H'00 and halted
Timer enabled:
TCNT starts counting up
⎯
⎯
4
1
H'FFF8C
⎯
⎯
3
1
CKS2 CKS1 CKS0
Clock select 2 to 0
0
1
CKS2
R/W
2
0
0
1
0
1
0
1
0
1
0
1
0
1
CKS1
R/W
1
0
φ/2
φ/32
φ/64
φ/128
φ/256
φ/512
φ/2048
φ/4096
Description
CKS0
R/W
0
0
WDT