HD64F3437TF16 Datasheet, PDF (689/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

TCR—Timer Control Register
H'C8
TMR0
Bit
Initial value
Read/Write
7
CMIEB
0
R/W
6
CMIEA
0
R/W
5
OVIE
0
R/W
4
3
CCLR1 CCLR0
0
0
R/W R/W
2
CKS2
0
R/W
1
CKS1
0
R/W
0
CKS0
0
R/W
Clock Select
TCR
STCR
CKS2 CKS1 CKS0 ICKS1 ICKS0
Description
0
0
0 — — Timer stopped
0
0
1 — 0 ø_P/8 internal clock, falling edge
0
0
1 — 1 ø_P/2 internal clock, falling edge
0
1
0 — 0 ø_P/64 internal clock, falling edge
0
1
0 — 1 ø_P/32 internal clock, falling edge
0
1
1 — 0 ø_P/1024 internal clock, falling edge
0
1
1 — 1 ø_P/256 internal clock, falling edge
1
0
0 — — Timer stopped
1
0
1 — — External clock, rising edge
1
1
0 — — External clock, falling edge
1
1
1 — — External clock, rising and falling edges
Counter Clear
0 0 Counter is not cleared.
0 1 Cleared by compare-match A.
1 0 Cleared by compare-match B.
1 1 Cleared on rising edge of external reset input.
Timer Overflow Interrupt Enable
0 Overflow interrupt request is disabled.
1 Overflow interrupt request is enabled.
Compare-Match Interrupt Enable A
0 Compare-match A interrupt request is disabled.
1 Compare-match A interrupt request is enabled.
Compare-Match Interrupt Enable B
0 Compare-match B interrupt request is disabled.
1 Compare-match B interrupt request is enabled.
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