HD6433935 Hitachi, HD6433935 Datasheet - Page 464

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

TMG—Timer mode register G
452
Note: * Bits 7 and 6 can only be written with 0, for flag clearing.
Timer overflow flag H
Bit
Initial value
Read/Write
0 Clearing conditions:
1
After reading OVFH = 1, cleared by writing 0 to OVFH
Setting conditions:
Set when TCG overflows from H'FF to H'00
Timer overflow flag L
0
1 Setting conditions:
Clearing conditions:
After reading OVFL = 1, cleared by writing 0 to OVFL
Set when TCG overflows from H'FF to H'00
R/(W)*
OVFH
Timer overflow interrupt enable
0
1
7
0
TCG overflow interrupt request is disabled
TCG overflow interrupt request is enabled
Input capture interrupt edge select
0
1 Interrupt generated on falling edge of input capture input signal
R/(W)*
OVFL
6
0
Interrupt generated on rising edge of input capture input signal
Counter clear
OVIE
0
0
1
1
W
5
0
0
1
0
1
TCG clearing is disabled
TCG cleared by falling edge of input capture input signal
TCG cleared by both edges of input capture input signal
TCG cleared by rising edge of input capture input signal
IIEGS
W
4
0
CCLR1
W
3
0
CCLR0
W
Clock select
2
0
0
0
1
1
0
1
0
1
H'BC
Internal clock: counting on ø/64
Internal clock: counting on ø/32
Internal clock: counting on ø/2
CKS1
Internal clock: counting on øw/4
W
1
0
CKS0
W
0
0
Timer G