MC68HC908GT16 Datasheet, PDF (227/412 Pages) Motorola, Inc – Microcontrollers

Input/Output (I/O) Ports
Introduction
Addr. Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$0005
Read:
Data Direction Register B
(DDRB) Write:
See page 234.
Reset:
DDRB7
0
DDRB6
0
DDRB5
0
DDRB4
0
DDRB3
0
DDRB2
0
DDRB1
0
DDRB0
0
Read: 0
Data Direction Register C
$0006
(DDRC) Write:
See page 237.
Reset: 0
DDRC6 DDRC5 DDRC4 DDRC3 DDRC2 DDRC1 DDRC0
0
0
0
0
0
0
0
$0007
Read:
Data Direction Register D
(DDRD) Write:
See page 242.
Reset:
DDRD7
0
DDRD6
0
DDRD5
0
DDRD4
0
DDRD3
0
DDRD2
0
DDRD1
0
DDRD0
0
Read: 0
0
0
Port E Data Register
PTE4 PTE3 PTE2 PTE1 PTE0
$0008
(PTE) Write:
See page 245.
Reset:
Unaffected by reset
Read: 0
0
0
Data Direction Register E
DDRE4 DDRE3 DDRE2 DDRE1 DDRE0
$000C
(DDRE) Write:
See page 246.
Reset: 0
0
0
0
0
0
0
0
Read:
Port A Input Pullup Enable
PTAPUE7 PTAPUE6 PTAPUE5 PTAPUE4 PTAPUE3 PTAPUE2 PTAPUE1 PTAPUE0
$000D
Register (PTAPUE) Write:
See page 232.
Reset: 0
0
0
0
0
0
0
0
Read: 0
Port C Input Pullup Enable
PTCPUE6 PTCPUE5 PTCPUE4 PTCPUE3 PTCPUE2 PTCPUE1 PTCPUE0
$000E
Register (PTCPUE) Write:
See page 239.
Reset: 0
0
0
0
0
0
0
0
Read:
Port D Input Pullup Enable
PTDPUE7 PTDPUE6 PTDPUE5 PTDPUE4 PTDPUE3 PTDPUE2 PTDPUE1 PTDPUE0
$000F
Register (PTDPUE) Write:
See page 244.
Reset: 0
0
0
0
0
0
0
0
= Unimplemented
Figure 16-1. I/O Port Register Summary (Continued)
MC68HC908GT16 • MC68HC908GT8 — Rev. 2
MOTOROLA
Input/Output (I/O) Ports
Technical Data
227