HD6413003RF Datasheet, PDF (657/715 Pages) Renesas Technology Corp – Microcontroller (MCU)

TCSR—Timer Control/Status Register
Bit
7
6
5
4
OVF WT/ IT TME
—
Initial value
0
0
0
1
Read/Write R/(W)* R/W R/W
—
H'A8
WDT
3
2
1
0
—
CKS2 CKS1 CKS0
1
0
0
0
—
R/W R/W R/W
Timer enable
0 Timer disabled
• TCNT is initialized to H'00 and halted
1 Timer enabled
• TCNT is counting
• CPU interrupt requests are enabled
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.
Clock select 2 to 0
0
0
0
1
1
0
1
1
0
0
1
1
0
1
ø/2
ø/32
ø/64
ø/128
ø/256
ø/512
ø/2048
ø/4096
639