MC68HC908GR16 Datasheet, PDF (130/310 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Input/Output Ports (PORTS)
Addr.
$0005
$0006
$0007
$0008
$000C
$000D
$000E
$000F
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
Read:
Data Direction Register B
(DDRB) Write:
See page 135. _Reset:
DDRB7
0
DDRB6
0
DDRB5
0
DDRB4
0
DDRB3
0
DDRB2
0
DDRB1
0
DDRB0
0
Data Direction Register C ^Read:
0
(DDRC) Write:
See page 136. _Reset:
0
DDRC6 DDRC5 DDRC4 DDRC3 DDRC2 DDRC1 DDRC0
0
0
0
0
0
0
0
Data Direction Register D ^Read:
(DDRD) Write:
See page 139.
Reset:
DDRD7
0
DDRD6
0
DDRD5
0
DDRD4
0
DDRD3
0
DDRD2
0
DDRD1
0
DDRD0
0
Read: 0
Port E Data Register
(PTE) Write:
See page 141. _Reset:
0
PTE5
PTE4
PTE3
PTE2
PTE1
PTE0
Unaffected by reset
Data Direction Register E ^Read:
0
(DDRE) Write:
See page 142. _Reset:
0
0
DDRE5 DDRE4 DDRE3 DDRE2 DDRE1 DDRE0
0
0
0
0
0
0
0
Port A Input Pullup Enable ^Read: _PTAPUE7
Register (PTAPUE) Write:
See page 134.
Reset: 0
PTAPUE6
0
PTAPUE5
0
PTAPUE4
0
PTAPUE3
0
PTAPUE2
0
PTAPUE1
0
PTAPUE0
0
Read: 0
Port C Input Pullup Enable
Register (PTCPUE) Write:
See page 138. _Reset:
0
PTCPUE6 PTCPUE5 PTCPUE4 PTCPUE3 PTCPUE2 PTCPUE1 PTCPUE0
0
0
0
0
0
0
0
Port D Input Pullup Enable ^Read: _PTDPUE7
Register (PTDPUE) Write:
See page 141. _Reset:
0
PTDPUE6
0
PTDPUE5
0
PTDPUE4
0
PTDPUE3
0
PTDPUE2
0
PTDPUE1
0
PTDPUE0
0
= Unimplemented
Figure 12-1. I/O Port Register Summary (Continued)
Data Sheet
130
Input/Output Ports (PORTS)
For More Information On This Product,
Go to: www.freescale.com
MC68HC908GR16 — Rev. 1.0
MOTOROLA