MC68HC705P9CDW FREESCALE [Freescale Semiconductor, Inc], MC68HC705P9CDW Datasheet - Page 33

• Manufacturer Part Number: MC68HC705P9CDW
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

3.4 Input/Output Register Summary
MC68HC705P9 — Rev. 4.0
MOTOROLA
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
Addr.
Data Direction Register C
Data Direction Register D
Data Direction Register A
Data Direction Register B
Port C Data Register
Port D Data Register
Port A Data Register
Port B Data Register
Name
See page 83.
See page 85.
See page 89.
See page 92.
See page 83.
See page 86.
See page 89.
See page 92.
Figure 3-2. I/O Register Summary (Sheet 1 of 4)
(PORTC)
(PORTD)
(PORTB)
(PORTA)
(DDRC)
(DDRD)
(DDRA)
(DDRB)
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DDRA7
DDRB7
DDRC7
Bit 7
PB7
PC7
PD7
PA7
0
0
0
0
0
Memory
= Unimplemented
DDRA6
DDRB6
DDRC6
PC6
PA6
PB6
6
0
0
0
0
0
0
DDRC5
DDRD5
DDRA5
DDRB5
PB5
PC5
PD5
PA5
5
0
0
0
0
Unaffected by reset
Unaffected by reset
Unaffected by reset
Unaffected by reset
DDRA4
DDRC4
PC4
PA4
4
0
1
0
0
0
0
0
0
R = Reserved
DDRA3
DDRC3
PC3
PA3
Input/Output Register Summary
3
0
0
0
0
0
0
0
0
DDRA2
DDRC2
PC2
PA2
2
0
0
0
0
0
0
0
0
U = Unaffected
DDRA1
DDRC1
Technical Data
PC1
PA1
1
0
0
0
0
0
0
0
0
Memory
DDRA0
DDRC0
Bit 0
PA0
PC0
0
0
0
0
0
0
0
0
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