HD6433640 HITACHI [Hitachi Semiconductor], HD6433640 Datasheet - Page 231

• Manufacturer Part Number: HD6433640
• Description: H8/3644 Series Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Timer Control Register V0 (TCRV0)
TCRV0 is an 8-bit read/write register that selects the TCNTV input clock, controls the clearing of
TCNTV, and enables interrupts.
TCRV0 is initialized to H'00 upon reset and in standby mode, watch mode, subsleep mode, and
subactive mode.
Bit 7—Compare Match Interrupt Enable B (CMIEB): Bit 7 enables or disables the interrupt
request (CMIB) generated from CMFB when CMFB is set to 1 in TCSRV.
Bit 7: CMIEB
0
1
Bit 6—Compare Match Interrupt Enable A (CMIEA): Bit 6 enables or disables the interrupt
request (CMIA) generated from CMFA when CMFA is set to 1 in TCSRV.
Bit 6: CMIEA
0
1
Bit 5—Timer Overflow Interrupt Enable (OVIE): Bit 5 enables or disables the interrupt
request (OVI) generated from OVF when OVF is set to 1 in TCSRV.
Bit 5: OVIE
0
1
Bit
Initial value
Read/Write
CMIEB
R/W
Description
Interrupt request (CMIB) from CMFB disabled
Interrupt request (CMIB) from CMFB enabled
Description
Interrupt request (CMIA) from CMFA disabled
Interrupt request (CMIA) from CMFA enabled
Description
Interrupt request (OVI) from OVF disabled
Interrupt request (OVI) from OVF enabled
7
0
CMIEA
R/W
6
0
OVIE
R/W
5
0
CCLR1
R/W
4
0
CCLR0
R/W
3
0
CKS2
R/W
2
0
CKS1
R/W
1
0
(initial value)
(initial value)
(initial value)
CKS0
R/W
0
0
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