MC68HC08AS32 Datasheet, PDF (29/280 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Addr.
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
↓
$000B
$000C
Register Name
Bit 7
Port A Data Register ^Read:
(PTA) Write:
See page 140. _Reset:
PTA7
Port B Data Register ^Read:
(PTB) Write:
See page 142. _Reset:
PTB7
Port C Data Register ^Read:
0
(PTC) Write: R
See page 144. _Reset:
Port D Data Register ^Read:
0
(PTD) Write: R
See page 146. _Reset:
Data Direction Register A ^Read:
(DDRA) Write:
See page 141. _Reset:
DDRA7
0
Data Direction Register B ^Read:
(DDRB) Write:
See page 143. _Reset:
DDRB7
0
Data Direction Register C
(DDRC)
Read:
Write:
MCLKEN
See page 145. _Reset:
0
Data Direction Register D ^Read:
0
(DDRD) Write: R
See page 147. _Reset:
0
Port E Data Register ^Read:
(PTE) Write:
See page 149. _Reset:
PTE7
Port F Data Register ^Read:
0
(PTF) Write: R
See page 151. _Reset:
6
PTA6
PTB6
0
R
PTD6
DDRA6
0
DDRB6
0
0
R
0
DDRD6
0
PTE6
0
R
5
PTA5
PTB5
0
R
PTD5
DDRA5
0
DDRB5
0
0
R
0
DDRD5
0
PTE5
0
R
Reserved
R
R
R
4
3
2
1
Bit 0
PTA4
PTA3
PTA2
PTA1
PTA0
Unaffected by reset
PTB4
PTB3
PTB2
PTB1
PTB0
Unaffected by reset
PTC4
PTC3 PTC2 PTC1 PTC0
Unaffected by reset
PTD4
PTD3
PTD2
PTD1
PTD0
Unaffected by reset
DDRA4 DDRA3 DDRA2 DDRA1 DDRA0
0
0
0
0
0
DDRB4 DDRB3 DDRB2 DDRB1 DDRB0
0
0
0
0
0
DDRC4 DDRC3 DDRC2 DDRC1 DDRC0
0
0
0
0
0
DDRD4 DDRD3 DDR2 DDRD1 DDRD0
0
0
0
0
0
PTE4
PTE3
PTE2
PTE1
PTE0
Unaffected by reset
0
R
PTF3
Unaffected by reset
PTF2
PTF1
PTF0
R
R
R
R
R
Data Direction Register E ^Read:
(DDRE) Write:
See page 150. _Reset:
DDRE7
0
R
DDRE6 DDRE5 DDRE4 DDRE3
0
0
= Reserved
0
0
U = Unaffected
DDRE2
0
Figure 2-2. Control, Status, and Data Register (Sheet 1 of 6)
DDRE1
0
DDRE0
0
MC68HC08AS32 — Rev. 4.1
Freescale Semiconductor
Data Sheet
29