mc68hc908gr8b Freescale Semiconductor, Inc, mc68hc908gr8b Datasheet - Page 114

• Manufacturer Part Number: mc68hc908gr8b
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Input/Output (I/O) Ports
114
Addr.
$000C
$000D
$000E
$000F
$0005
$0006
$0007
$0008
Port A Input Pullup Enable
Port C Input Pullup Enable
Port D Input Pullup Enable
Data Direction Register C
Data Direction Register D
Data Direction Register B
Data Direction Register E
Register Name
Port E Data Register
Register (PTAPUE)
Register (PTCPUE)
Register (PTDPUE)
See page 118.
See page 120.
See page 123.
See page 125.
See page 126.
See page 117.
See page 122.
See page 125.
(DDRC)
(DDRD)
(DDRB)
(DDRE)
(PTE)
Figure 12-1. I/O Port Register Summary (Continued)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
MC68HC908GR8B Data Sheet, Rev. 3.0
Bit 7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
= Unimplemented
PTDPUE6 PTDPUE5 PTDPUE4 PTDPUE3 PTDPUE2 PTDPUE1 PTDPUE0
DDRD6
6
0
0
0
0
0
0
0
0
0
0
0
0
0
DDRB5
DDRD5
5
0
0
0
0
0
0
0
0
0
0
0
0
DDRB4
DDRD4
Unaffected by reset
4
0
0
0
0
0
0
0
0
0
0
0
0
PTAPUE3
DDRB3
DDRD3
3
0
0
0
0
0
0
0
0
0
0
0
PTAPUE2
DDRD2
DDRB2
2
0
0
0
0
0
0
0
0
0
0
0
Freescale Semiconductor
PTAPUE1
PTCPUE1 PTCPUE0
DDRC1
DDRD1
DDRB1
DDRE1
PTE1
1
0
0
0
0
0
0
0
PTAPUE0
DDRC0
DDRD0
DDRE0
DDRB0
PTE0
Bit 0
0
0
0
0
0
0
0