HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 392

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Bit 6—Compare Match Interrupt Enable A (CMIEA): Selects whether CMFA interrupt
requests (CMIA) are enabled or disabled when the CMFA flag of TCSR is set to 1.
Bit 6
CMIEA
0
1
Bit 5—Timer Overflow Interrupt Enable (OVIE): Selects whether OVF interrupt requests
(OVI) are enabled or disabled when the OVF flag of TCSR is set to 1.
Bit 5
OVIE
0
1
Bits 4 and 3—Counter Clear 1 and 0 (CCLR1 and CCLR0): These bits select the method by
which TCNT is cleared: by compare match A or B, or by an external reset input.
Bit 4
CCLR1
0
1
Bits 2 to 0—Clock Select 2 to 0 (CKS2 to CKS0): These bits select whether the clock input to
TCNT is an internal or external clock.
Three internal clocks can be selected, all divided from the system clock (ø): ø/8, ø/64, and ø/8192.
The falling edge of the selected internal clock triggers the count.
When use of an external clock is selected, three types of count can be selected: at the rising edge,
the falling edge, and both rising and falling edges.
Some functions differ between channel 0 and channel 1.
376
Description
CMFA interrupt requests (CMIA) are disabled
CMFA interrupt requests (CMIA) are enabled
Description
OVF interrupt requests (OVI) are disabled
OVF interrupt requests (OVI) are enabled
Bit 3
CCLR0
0
1
0
1
Description
Clear is disabled
Clear by compare match A
Clear by compare match B
Clear by rising edge of external reset input
(Initial value)
(Initial value)
(Initial value)