MC68HC812A4 Datasheet, PDF (179/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Standard Timer Module
Register Map
Addr.
Register Name
Bit 7
6
5
Timer Control ^Read: _OM7
OL7
OM6
$0088 Register 1 (TCTL1) Write:
See page 192. _{Reset: 0}
0
0
Timer Control ^Read: _OM3
OL3
OM2
$0089 Register 2 (TCTL2) Write:
See page 192. _{Reset: 0}
0
0
$008A
Timer Control
Register 3 (TCTL3)
See page 193.
Read:
Write:
Reset:
EDG7B
0
EDG7A
0
EDG6B
0
$008B
Timer Control
Register 4 (TCTL4)
See page 193.
Read:
Write:
Reset:
EDG3B
0
EDG3A
0
EDG2B
0
Timer Mask Register 1 ^Read: _C7I
C6I
C5I
$008C
(TMSK1) Write:
See page 194. _{Reset: 0}
0
0
Timer Mask Register 2 ^Read: _TOI
$008D
(TMSK2) Write:
See page 194. _{Reset: 0}
0
PUPT
0
1
Timer Flag Register 1 ^Read: _C7F
C6F
C5F
$008E
(TFLG1) Write:
See page 196. _{Reset: 0}
0
0
Timer Flag Register 2 ^Read: _TOF
0
0
$008F
(TFLG2) Write:
See page 196. _{Reset: 0}
0
0
Timer Channel 0 ^Read: _{Bit 15}
14
13
$0090 Register High (TC0H) Write:
See page 197. _{Reset: 0}
0
0
Timer Channel 0 ^Read: _{Bit 7}
6
5
$0091 Register Low (TC0L) Write:
See page 197. _{Reset: 0}
0
0
= Unimplemented
4
3
2
OL6
OM5
OL5
0
0
0
OL2
OM1
OL1
0
0
0
EDG6A EDG5B EDG5A
0
0
0
EDG2A EDG1B EDG1A
0
0
0
C4I
C3I
C2I
0
0
0
RDPT TCRE PR2
1
0
0
C4F
C3F
C2F
0
0
0
0
0
0
0
0
0
12
11
10
0
0
0
4
3
2
0
0
0
R = Rserved
1
OM4
0
OM0
0
EDG4B
0
EDG0B
0
C1I
0
PR1
0
C1F
0
0
0
9
0
1
0
Bit 0
OL4
0
OL0
0
EDG4A
0
EDG0A
0
C0I
0
PR0
0
C0F
0
0
0
Bit 8
0
Bit 0
0
Figure 12-2. I/O Register Summary (Sheet 2 of 5)
Advance Information
MOTOROLA
Standard Timer Module
MC68HC812A4 — Rev. 3.0
179