MC68HC08AS32 Datasheet, PDF (47/394 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Memory Map
Input/Output (I/O) Section
Addr.
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
$000C
$000D
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
Port A Data Register ^Read:
(PTA) _Write:
PTA7
PTA6
PTA5
PTA4
PTA3 PTA2 PTA1 PTA0
Port B Data Register ^Read:
(PTB) _Write:
PTB7
PTB6
PTB5
PTB4
PTB3 PTB2 PTB1 PTB0
Port C Data Register ^{Read: 0}
(PTC) _{Write: R}
0
R
0
PTC4 PTC3 PTC2 PTC1 PTC0
R
Port D Data Register ^{Read: 0}
(PTD) _{Write: R}
PTD6 PTD5 PTD4 PTD3 PTD2 PTD1 PTD0
Data Direction Register A ^Read:
(DDRA) _Write:
DDRA7
DDRA6 DDRA5
DDRA4
DDRA3 DDRA2 DDRA1 DDRA0
Data Direction Register B ^Read:
(DDRB) _Write:
DDRB7
DDRB6 DDRB5
DDRB4
DDRB3 DDRB2 DDRB1 DDRB0
Data Direction Register C
(DDRC)
Read:
Write:
MCLKEN
0
R
0
DDRC4 DDRC3 DDRC2 DDRC1 DDRC0
R
Data Direction Register D ^{Read: 0}
(DDRD) _{Write: R}
DDRD6 DDRD5 DDRD4 DDRD3 DDR2 DDRD1 DDRD0
Port E Data Register ^Read:
(PTE) _Write:
PTE7
PTE6
PTE5
PTE4
PTE3 PTE2 PTE1 PTE0
Port F Data Register ^{Read: 0}
(PTF) _{Write: R}
0
R
0
R
0
PTF3 PTF2 PTF1 PTF0
R
Read:
Reserved
R
R
R
R
R
R
R
R
Write:
Read:
Reserved
R
R
R
R
R
R
R
R
Write:
Data Direction Register E ^Read:
(DDRE) _Write:
DDRE7
DDRE6 DDRE5
DDRE4
DDRE3 DDRE2 DDRE1 DDRE0
Data Direction Register F ^{Read: 0}
(DDRF) _{Write: R}
0
R
0
R
0
DDRF3 DDRF2 DDRF1 DDRF0
R
R = Reserved
Figure 2-2. Control, Status, and Data Register (Sheet 1 of 6)
MC68HC08AS32 — Rev. 3.0
MOTOROLA
Memory Map
Advance Information
47