hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 621

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

TCSRF—Timer Control/Status Register F
Bit
Initial value
Read/Write
Note: * Bits 7, 6, 3, and 2 can only be written with 0, for flag clearing.
Timer Overflow Flag H
0
1
Compare Match Flag H
0
1
Clearing condition:
After reading OVFH = 1, cleared by writing 0 to OVFH
Setting condition:
Timer Overflow Interrupt Enable H
Set when TCFH overflows from H'FF to H'00
0
1
Clearing condition:
After reading CMFH = 1, cleared by writing 0 to CMFH
Setting condition:
Set when the TCFH value matches the OCRFH value
OVFH
R/(W) *
Counter Clear H
0
1
TCFH overflow interrupt request is disabled
TCFH overflow interrupt request is enabled
7
0
Timer Overflow Flag L
0
1
16-bit mode: TCF clearing by compare match is disabled
16-bit mode: TCF clearing by compare match is enabled
Compare Match Flag L
8-bit mode: TCFH clearing by compare match is disabled
8-bit mode: TCFH clearing by compare match is enabled
0
1
Timer Overflow Interrupt Enable L
Clearing condition:
Setting condition:
After reading OVFL = 1, cleared by writing 0 to OVFL
Set when TCFL overflows from H'FF to H'00
0
1
Clearing condition:
Setting condition:
CMFH
R/(W) *
After reading CMFL = 1, cleared by writing 0 to CMFL
Set when the TCFL value matches the OCRFL value
Counter Clear L
0
1
TCFL overflow interrupt request is disabled
TCFL overflow interrupt request is enabled
6
0
TCFL clearing by compare match is disabled
TCFL clearing by compare match is enabled
OVIEH
R/W
5
0
CCLRH
R/W
4
0
R/(W) *
OVFL
Rev. 7.00 Mar 10, 2005 page 579 of 652
3
0
H'B7
Appendix B Internal I/O Registers
R/(W) *
CMFL
2
0
OVIEL
R/W
1
0
REJ09B0042-0700
CCLRL
R/W
0
0
Timer F