CFORC — Timer Compare Force
$100B
Bit 7
FOC1
0
6
FOC2
0
5
FOC3
0
4
FOC4
0
3
FOC5
0
2
0
0
1
0
0
Bit 0
0
0
RESET:
FOC5–FOC1 — Write ones to Force Compare(s)
0 = Not affected
1 = Output compare x action occurs, but OCxF flag bit not set
OC1M — Output Compare 1 Mask
$100C
Bit 7
6
5
4
3
2
0
0
1
0
0
Bit 0
OC1M7 OC1M6 OC1M5 OC1M4 OC1M3
0
0
RESET:
0
0
0
0
0
Set bit(s) to enable OC1 to control corresponding pin(s) of port A.
OC1D — Output Compare 1 Data
$100D
Bit 7
6
5
4
3
2
0
0
1
0
0
Bit 0
OC1D7 OC1D6 OC1D5 OC1D4 OC1D3
0
0
RESET:
0
0
0
0
0
If OC1Mx is set, data in OC1Dx is output to port A bit x on successful OC1 compares.
TCNT — Timer Counter $100E, $100F
$100E
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
1
Bit 8
Bit 0
High
Low
TCNT
TCNT resets to $0000. In normal modes, TCNT is read-only.
TIC1–TIC3 — Timer Input Capture
$1010–$1015
$1010
$1011
$1012
$1013
$1014
$1015
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
1
9
1
9
1
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
High TIC1
Low
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
High TIC2
Low
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
High TIC3
Low
TICx not affected by reset.
MOTOROLA
34
MC68HC11A8
MC68HC11A8TS/D