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TCSR_A
Bit
Bit Name
7
CMFB
6
CMFA
5
OVF
4
ICF
3
OS3
2
OS2
1
OS1
0
OS0
Note:
*
Only 0 can be written, for flag clearing.
Initial
Value
R/W
0
R/(W)*
0
R/(W)*
0
R/(W)*
0
R/(W)*
0
R/W
0
R/W
0
R/W
0
R/W
Description
Compare-Match Flag B
[Setting condition]
When the values of TCNT_A and TCORB_A match
[Clearing condition]
Read CMFB when CMFB = 1, then write 0 in CMFB
Compare-Match Flag A
[Setting condition]
When the values of TCNT_A and TCORA_A match
[Clearing condition]
Read CMFA when CMFA = 1, then write 0 in CMFA
Timer Overflow Flag
[Setting condition]
When TCNT_A overflows from H'FF to H'00
[Clearing condition]
Read OVF when OVF = 1, then write 0 in OVF
Input Capture Flag
[Setting condition]
When a rising edge and falling edge is detected in the
external reset signal in that order.
[Clearing condition]
Read ICF when ICF = 1, then write 0 in ICF
Output Select 3, 2
These bits specify how the TMOA pin output level is to
be changed by compare-match B of TCORB_A and
TCNT_A.
00: No change
01: 0 is output
10: 1 is output
11: Output is inverted (toggle output)
Output Select 1, 0
These bits specify how the TMOA pin output level is to
be changed by compare-match A of TCORA_A and
TCNT_A.
00: No change
01: 0 is output
10: 1 is output
11: Output is inverted (toggle output)
Rev. 1.00, 05/04, page 201 of 544
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