mc68hc908sr12 Freescale Semiconductor, Inc, mc68hc908sr12 Datasheet - Page 318

• Manufacturer Part Number: mc68hc908sr12
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Input/Output (I/O) Ports
Data Sheet
318
Addr.
$000C
$000D
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
Data Direction Register A
Data Direction Register B
Data Direction Register C
Data Direction Register D
Register Name
Port A Data Register
Port B Data Register
Port C Data Register
Port D Data Register
Port-C LED Control
Port-A LED Control
Register
Register
(DDRC)
(DDRD)
(DDRA)
(DDRB)
(LEDA)
(LEDC)
(PTC)
(PTD)
(PTA)
(PTB)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Figure 18-1. I/O Port Register Summary
DDRC7
DDRD7
DDRA7
LEDC7
PTA7
PTC7
PTD7
Bit 7
0
0
0
0
0
0
0
0
0
Input/Output (I/O) Ports
DDRA6
DDRB6
DDRC6
DDRD6
LEDC6
PTC6
PTD6
PTA6
PTB6
6
0
0
0
0
0
0
0
DDRA5
DDRB5
DDRC5
DDRD5
LEDC5
LEDA5
PTC5
PTD5
PTA5
PTB5
5
0
0
0
0
0
0
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Unaffected by reset
Unaffected by reset
Unaffected by reset
Unaffected by reset
DDRA4
DDRB4
DDRC4
DDRD4
LEDC4
LEDA4
PTA4
PTB4
PTC4
PTD4
4
0
0
0
0
0
0
DDRA3
DDRB3
DDRC3
DDRD3
LEDC3
LEDA3
PTA3
PTB3
PTC3
PTD3
3
0
0
0
0
0
0
DDRC2
DDRD2
DDRA2
DDRB2
LEDA2
PTA2
PTB2
PTC2
PTD2
Freescale Semiconductor
2
0
0
0
0
0
0
0
DDRC1
DDRD1
DDRA1
DDRB1
LEDA1
PTA1
PTB1
PTC1
PTD1
1
0
0
0
0
0
0
0
DDRA0
DDRB0
DDRC0
DDRD0
LEDA0
PTB0
PTC0
PTD0
PTA0
Bit 0
0
0
0
0
0
0
0