h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 977

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

TCSR—Timer Control/Status Register
Bit
Initial value
Read/Write
Note: *
Only 0 can be written in bits 7 to 1, to clear the flags.
Input capture flag A
0
1
[Clearing condition]
Read ICFA when ICFA = 1, then write 0 in ICFA
[Setting condition]
When an input capture signal causes the FRC value to be transferred to ICRA
R/(W) *
ICFA
7
0
Input capture flag B
0
1
R/(W) *
[Clearing condition]
Read ICFB when ICFB = 1, then write 0 in ICFB
[Setting condition]
When an input capture signal causes the FRC value to be transferred to ICRB
ICFB
6
0
Input capture flag C
0
1
R/(W) *
ICFC
[Clearing condition]
Read ICFC when ICFC = 1, then write 0 in ICFC
[Setting condition]
When an input capture signal is received
5
0
Input capture flag D
0
1
R/(W) *
ICFD
[Clearing condition]
Read ICFD when ICFD = 1, then write 0 in ICFD
[Setting condition]
When an input capture signal is received
4
0
Output compare flag A
0
1
Output compare flag B
0
1
[Clearing condition]
Read OCFA when OCFA = 1, then write 0 in OCFA
[Setting condition]
When FRC = OCRA
R/(W) *
OCFA
Rev. 4.00 Jun 06, 2006 page 923 of 1004
[Clearing condition]
Read OCFB when OCFB = 1, then write 0 in OCFB
[Setting condition]
When FRC = OCRB
H'FF91
3
0
Appendix B Internal I/O Registers
R/(W) *
OCFB
Timer overflow flag
2
0
0
1
[Clearing condition]
Read OVF when OVF = 1,
then write 0 in OVF
[Setting condition]
When FRC changes from
H'FFFF to H'0000
R/(W) *
OVF
Counter clear A
1
0
0
1
REJ09B0301-0400
FRC clearing is
disabled
FRC is cleared at
compare match A
CCLRA
R/W
0
0
FRT