mc68hc908gr8a Freescale Semiconductor, Inc, mc68hc908gr8a Datasheet - Page 30

• Manufacturer Part Number: mc68hc908gr8a
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Memory
30
$000B
$000C
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
Addr.
↓
Data Direction Register C
Data Direction Register D
Data Direction Register A
Data Direction Register B
Data Direction Register E
Register Name
Port C Data Register
Port D Data Register
Port A Data Register
Port B Data Register
Port E Data Register
See page 117.
See page 120.
See page 122.
See page 124.
See page 118.
See page 120.
See page 122.
See page 125.
See page 127.
See page 128.
Figure 2-2. Control, Status, and Data Registers (Sheet 1 of 7)
Reserved
(DDRC)
(DDRD)
(DDRA)
(DDRB)
(DDRE)
(PTC)
(PTD)
(PTA)
(PTB)
(PTE)
MC68HC908GR8A • MC68HC908GR4A Data Sheet, Rev. 5
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Bit 7
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
= Unimplemented
DDRD6
PTD6
R
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
DDRD5
DDRB5
PTB5
PTD5
R
5
0
0
0
0
0
0
0
0
0
0
0
0
R = Reserved
DDRB4
DDRD4
Unaffected by reset
Unaffected by reset
Unaffected by reset
Unaffected by reset
Unaffected by reset
PTB4
PTD4
R
4
0
0
0
0
0
0
0
0
0
0
0
0
DDRA3
DDRB3
DDRD3
PTA3
PTB3
PTD3
R
3
0
0
0
0
0
0
0
0
0
0
U = Unaffected
DDRA2
DDRB2
DDRD2
PTA2
PTD2
PTB2
R
2
0
0
0
0
0
0
0
0
0
0
Freescale Semiconductor
DDRC1
DDRD1
DDRA1
DDRB1
DDRE1
PTA1
PTB1
PTC1
PTD1
PTE1
R
1
0
0
0
0
0
0
DDRC0
DDRD0
DDRA0
DDRB0
DDRE0
PTA0
PTB0
PTC0
PTD0
PTE0
Bit 0
R
0
0
0
0
0
0