3069RF-ZTAT Datasheet, PDF (352/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Bit 4—Overflow Interrupt Enable 0 (OVIE0): Enables or disables the interrupt requested by
the OVF0 when OVF0 flag is set to 1.
Bit 4
OVIE0
0
1
Description
OVI0 interrupt requested by OVF0 flag is disabled
OVI0 interrupt requested by OVF0 flag is enabled
(Initial value)
Bit 3—Reserved: This bit cannot be modified and is always read as 1.
Bit 2—Overflow Flag 2 (OVF2): This status flag indicates 16TCNT2 overflow.
Bit 2
OVF2
Description
0
[Clearing condition]
(Initial value)
Read OVF2 flag when OVF2 =1, then write 0 in OVF2 flag
1
[Setting condition]
16TCNT2 overflowed from H'FFFF to H'0000, or underflowed from H'0000 to H'FFFF
Note: 16TCNT underflow occurs when 16TCNT operates as an up/down-counter. Underflow
occurs only when channel 2 operates in phase counting mode (MDF = 1 in TMDR).
Bit 1—Overflow Flag 1 (OVF1): This status flag indicates 16TCNT1 overflow.
Bit 1
OVF1
0
1
Description
[Clearing condition]
Read OVF1 flag when OVF1 =1, then write 0 in OVF1 flag
[Setting condition]
16TCNT1 overflowed from H'FFFF to H'0000
(Initial value)
Bit 0—Overflow Flag 0 (OVF0): This status flag indicates 16TCNT0 overflow.
Bit 0
OVF0
0
1
Description
[Clearing condition]
Read OVF0 flag when OVF0 =1, then write 0 in OVF0 flag
[Setting condition]
16TCNT0 overflowed from H'FFFF to H'0000
(Initial value)
Rev. 5.0, 09/04, page 330 of 978