MC68HC908AT32 Datasheet, PDF (289/378 Pages) Freescale Semiconductor, Inc – Microcontrollers

Features
Addr.
Register Name
$0020
Timer A Status and Control Register ^Read:
(TASC) Write:
See page 298. _Reset:
$0021
Keyboard Interrupt Enable Register ^Read:
(KBIER) Write:
See page 285. _Reset:
$0022
Timer A Counter Register ^Read:
High (TACNTH) Write:
See page 300. _Reset:
$0023
Timer A Counter Register ^Read:
Low (TACNTL) Write:
See page 300. _Reset:
$0024
Timer A Counter Modulo ^Read:
Register High (TAMODH) Write:
See page 300. _Reset:
$0025
Timer A Counter Modulo ^Read:
Register Low (TAMODL) Write:
See page 300. _Reset:
$0026
Timer A Channel 0 Status and Control ^Read:
Register (TASC0) Write:
See page 301. _Reset:
$0027
Timer A Channel 0 Register ^Read:
High (TACH0H) Write:
See page 304. _Reset:
$0028
Timer A Channel 0 Register ^Read:
Low (TACH0L) Write:
See page 304. _Reset:
$0029
Timer A Channel 1 Status and Control ^Read:
Register (TASC1) Write:
See page 298. _Reset:
$002A
Timer A Channel 1 Register ^Read:
High (TACH1H) Write:
See page 304. _Reset:
$002B
Timer A Channel 1 Register ^Read:
Low (TACH1L) Write:
See page 304. _Reset:
Italic Type = MC68HC08AS20 Specific
Boldface Type = MC68HC08AZ32 Specific
Bit 7
TOF
0
0
0
0
Bit 15
R
0
Bit 7
R
0
Bit 15
1
Bit 7
1
CH0F
0
0
Bit 15
Bit 7
CH1F
0
0
Bit 15
Bit 7
6
5
4
3
2
0
0
TOIE TSTOP
PS2
TRST
R
0
1
0
0
0
0
0
KBIE4 KBIE3 KBIE2
0
0
0
0
0
14
13
12
11
10
R
R
R
R
R
0
0
0
0
0
6
5
4
3
2
R
R
R
R
R
0
0
0
0
0
14
13
12
11
10
1
1
1
1
1
6
5
4
3
2
1
1
1
1
1
CH0IE MS0B MS0A ELS0B ELS0A
0
0
0
0
0
14
13
12
11
10
Indeterminate after reset
6
5
4
3
2
CH1IE
0
Indeterminate after reset
0
MS1A ELS1B ELS1A
R
0
0
0
0
14
13
12
11
10
Indeterminate after reset
6
5
4
3
2
Indeterminate after reset
= Unimplemented
R = Reserved
1
Bit 0
PS1
PS0
0
0
KBIE1 KBIE0
0
0
9
Bit 8
R
R
0
0
1
Bit 0
R
R
0
0
9
Bit 8
1
1
1
Bit 0
1
1
TOV0 CH0MAX
0
0
9
Bit 8
1
Bit 0
TOV1 CH1MAX
0
0
9
Bit 8
1
Bit 0
Figure 25-2. TIMA I/O Register Summary (Sheet 1 of 2)
MC68HC908AT32 Data Sheet, Rev. 3.1
Freescale Semiconductor
289