MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 45

• Manufacturer Part Number: MC68HC908LJ12CPB
• Description: 8-bit microcontroller units
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Memory Map
Technical Data
46
Addr.
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
Data Direction Register C
Data Direction Register D
Data Direction Register A
Data Direction Register B
Register Name
Port C Data Register
Port D Data Register
Port A Data Register
Port B Data Register
Unimplemented
Unimplemented
U = Unaffected
Figure 2-2. Control, Status, and Data Registers (Sheet 1 of 12)
(DDRC)
(DDRD)
(DDRA)
(DDRB)
(PTA)
(PTB)
(PTC)
(PTD)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
X = Indeterminate
DDRA7
DDRB7
DDRC7
DDRD7
PTC7
PTD7
PTA7
PTB7
Bit 7
U
U
U
U
0
0
0
0
DDRA6
DDRB6
DDRC6
DDRD6
PTA6
PTB6
PTC6
PTD6
U
U
U
U
6
0
0
0
0
Memory Map
DDRA5
DDRB5
DDRC5
DDRD5
PTA5
PTB5
PTC5
PTD5
U
U
U
U
5
0
0
0
0
= Unimplemented
DDRA4
DDRB4
DDRC4
DDRD4
PTA4
PTB4
PTC4
PTD4
U
U
U
U
4
0
0
0
0
DDRA3
DDRB3
DDRC3
DDRD3
PTA3
PTB3
PTC3
PTD3
U
U
U
U
3
0
0
0
0
MC68HC908LJ12
DDRC2
DDRD2
DDRA2
DDRB2
PTA2
PTB2
PTC2
PTD2
Freescale Semiconductor
U
U
U
U
R
0
0
0
0
2
= Reserved
DDRC1
DDRD1
DDRA1
DDRB1
PTA1
PTB1
PTC1
PTD1
U
U
U
U
1
0
0
0
0
—
DDRC0
DDRD0
Rev. 2.1
DDRA0
DDRB0
PTA0
PTB0
PTC0
PTD0
Bit 0
U
U
U
U
0
0
0
0