MC68HC05P9ACDW FREESCALE [Freescale Semiconductor, Inc], MC68HC05P9ACDW Datasheet - Page 21

• Manufacturer Part Number: MC68HC05P9ACDW
• Description: HCMOS Microcontroller Unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Input/Output Register Summary
7-mc68hc05p9a
MOTOROLA
Addr.
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
Data Direction Register C (DDRC)
Data Direction Register D (DDRD)
Data Direction Register A (DDRA)
Data Direction Register B (DDRB)
Port C Data Register (PORTC)
Port D Data Register (PORTD)
Port B Data Register (PORTB)
Port A Data Register (PORTA)
Name
Unimplemented
Unimplemented
Freescale Semiconductor, Inc.
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Figure 9. I/O Register Summary
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
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R/W
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
DDRC7 DDRC6 DDRC5 DDRC4 DDRC3 DDRC2 DDRC1 DDRC0
DDRA7 DDRA6 DDRA5 DDRA4 DDRA3 DDRA2 DDRA1 DDRA0
DDRB7 DDRB6 DDRB5
Bit 7
PB7
PC7
PD7
PA7
0
0
0
0
0
Memory
= Unimplemented
PC6
PB6
PA6
6
0
0
0
0
0
0
DDRD5
PC5
PD5
PB5
PA5
5
0
0
0
0
Unaffected by reset
Unaffected by reset
Unaffected by reset
Unaffected by reset
PC4
PA4
4
0
1
0
0
0
0
0
0
R
= Reserved
Input/Output Register Summary
PC3
PA3
3
0
0
0
0
0
0
0
0
PC2
PA2
2
0
0
0
0
0
0
0
0
U = Unaffected
PC1
PA1
1
0
0
0
0
0
0
0
0
Memory
Bit 0
PC0
PA0
0
0
0
0
0
0
0
0
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