MC68HC908AT32 Datasheet, PDF (41/378 Pages) Freescale Semiconductor, Inc – Microcontrollers

Input/Output (I/O) Section
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$001D
PLL Bandwidth Control Read:
LOCK
0
0
0
0
Register _Write: ^AUTO
ACQ
XLD
(PBWC)
See page 103. ^{Reset: 0}
0
0
0
0
0
0
0
$001E
PLL Programming Register ^Read:
(PPG) Write:
See page 104. _Reset:
MUL7
0
MUL6
1
MUL5
1
MUL4
0
VRS7
0
VRS6
1
VRS5
1
VRS4
0
$001F
Configuration Write-Once ^Read: _LVISTOP
R
Register (CONFIG-1) Write:
See page 109. _{Reset: 0}
1
LVIRST LVIPWR SSREC COPRS STOP
1
1
0
0
0
COPD
0
Timer A Status and Control Register ^{Read: TOF}
TOIE TSTOP
0
0
$0020
(TASC) Write: 0
TRST
R
See page 195. _{Reset: 0}
0
1
0
0
PS2
PS1
PS0
0
0
0
Keyboard Interrupt Enable Register ^{Read: 0}
0
0
KBIE4 KBIE3 KBIE2 KBIE1 KBIE0
$0021
(KBIER) Write:
See page 285. _{Reset: 0}
0
0
0
0
0
0
0
$0022
Timer A Counter Register ^{Read: Bit 15}
14
13
12
11
10
9
Bit 8
High (TACNTH) Write: R
R
R
R
R
R
R
R
See page 197. _{Reset: 0}
0
0
0
0
0
0
0
$0023
Timer A Counter Register ^{Read: Bit 7}
6
5
4
3
2
1
Bit 0
Low (TACNTL) Write: R
R
R
R
R
R
R
R
See page 197. _{Reset: 0}
0
0
0
0
0
0
0
$0024
Timer A Modulo Register ^Read: _{Bit 15}
14
13
12
11
10
9
Bit 8
High (TAMODH) Write:
See page 197. _{Reset: 1}
1
1
1
1
1
1
1
$0025
Timer A Modulo Register ^Read: _{Bit 7}
6
5
4
3
2
1
Bit 0
Low (TAMODL) Write:
See page 197. _{Reset: 1}
1
1
1
1
1
1
1
$0026
Timer A Channel 0 Status and Control ^Read:
Register (TASC0) Write:
See 198 and 301. _Reset:
CH0F
0
0
CH0IE
0
MS0B
0
MS0A
0
ELS0B ELS0A
0
0
TOV0 CH0MAX
0
0
$0027
Timer A Channel 0 Register ^Read: _{Bit 15}
14
High (TACH0H) Write:
See 201 and 304. _Reset:
13
12
11
10
Indeterminate after reset
9
Bit 8
$0028
Timer A Channel 0 Register ^Read: _{Bit 7}
6
Low (TACH0L) Write:
See 201 and 304. _Reset:
5
4
3
2
Indeterminate after reset
1
Bit 0
Italic Type = MC68HC08AS20 Specific
U = Unaffected
Boldface Type = MC68HC08AZ32 Specific
= Unimplemented
R = Reserved
X = Indeterminate
Figure 2-2. Control, Status, and Data Registers (Sheet 4 of 9)
MC68HC908AT32 Data Sheet, Rev. 3.1
Freescale Semiconductor
41