MC68HC05C8A Datasheet, PDF (32/158 Pages) Motorola, Inc – Microcontrollers

Memory
Addr.
Register Name
Bit 7
6
5
$0000
Read:
Port A Data Register
PA7 PA6 PA5
(PORTA) Write:
See page 56.
Reset:
$0001
Read:
Port B Data Register
PB7 PB6 PB5
(PORTB) Write:
See page 56.
Reset:
$0002
Read:
Port C Data Register
PC7 PC6 PC5
(PORTC) Write:
See page 57.
Reset:
Read:
Port D Data Register
PD7
PD5
$0003
(PORTD) Write:
See page 57.
Reset:
$0004
Read:
Port A Data Direction Register
DDRA7
(DDRA) Write:
See page 56.
Reset: 0
DDRA6
0
DDRA5
0
$0005
Read:
Port B Data Direction Register
DDRB7
(DDRB) Write:
See page 56.
Reset: 0
DDRB6
0
DDRB5
0
Read:
Port C Data Direction Register
DDRC7
$0006
(DDRC) Write:
See page 57.
Reset: 0
DDRC6
0
DDRC5
0
$0007
Unimplemented
4
3
PA4
PA3
Unaffected by reset
PB4
PB3
Unaffected by reset
PC4
PC3
Unaffected by reset
PD4
PD3
Unaffected by reset
DDRA4 DDRA3
0
0
DDRB4 DDRB3
0
0
DDRC4 DDRC3
0
0
2
1
Bit 0
PA2 PA1 PA0
PB2 PB1 PB0
PC2 PC1 PC0
PD2 PD1 PD0
DDRA2 DDRA1 DDRA0
0
0
0
DDRB2 DDRB1 DDRB0
0
0
0
DDRC2 DDRC1 DDRC0
0
0
0
$0008
Unimplemented
$0009
Unimplemented
Technical Data
32
= Unimplemented
R = Reserved
Figure 2-2. Input/Output Registers (Sheet 1 of 4)
U = Unaffected
MC68HC05C8A • MC68HCL05C8A • MC68HSC05C8A — Rev. 5.0
Memory
MOTOROLA