MC908AB32CFUE Datasheet, PDF (313/392 Pages) Freescale Semiconductor, Inc – Microcontrollers

Input/Output (I/O) Ports
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$0008
Read:
Port E Data Register
(PTE)
Write:
Reset:
PTE7
PTE6
PTE5
PTE4 PTE3
Unaffected by reset
PTE2
PTE1
PTE0
$0009
Read:
Port F Data Register
(PTF)
Write:
Reset:
PTF7
PTF6
PTF5
PTF4 PTF3
Unaffected by reset
PTF2
PTF1
PTF0
Read: 0
0
0
0
0
$000A
Port G Data Register
(PTG)
Write:
PTG2 PTG1 PTG0
Reset:
Unaffected by reset
Read: 0
0
0
0
0
0
$000B
Port H Data Register
(PTH)
Write:
PTH1 PTH0
Reset:
Unaffected by reset
Read:
$000C
Data Direction Register E
(DDRE)
Write:
Reset:
DDRE7
0
DDRE6
0
DDRE5
0
DDRE4
0
DDRE3
0
DDRE2
0
DDRE1
0
DDRE0
0
Read:
$000D
Data Direction Register F
(DDRF)
Write:
Reset:
DDRF7
0
DDRF6
0
DDRF5
0
DDRF4
0
DDRF3
0
DDRF2
0
DDRF1
0
DDRF0
0
Read: 0
0
0
0
0
$000E
Data Direction Register G
(DDRG)
Write:
DDRG2 DDRG1 DDRG0
Reset: 0
0
0
0
0
0
0
0
Read: 0
0
0
0
0
0
$000F
Data Direction Register H
(DDRH)
Write:
DDRH1 DDRH0
Reset: 0
0
0
0
0
0
0
0
Port D Input Pullup Enable ^Read: _{PTDPUE7 PTDPUE6 PTDPUE5 PTDPUE4 PTDPUE3 PTDPUE2 PTDPUE1 PTDPUE0}
$003D
Register Write:
(PTDPUE) _{Reset: 0}
0
0
0
0
0
0
0
Port F Input Pullup Enable ^Read: _{PTFPUE7 PTFPUE6 PTFPUE5 PTFPUE4 PTFPUE3 PTFPUE2 PTFPUE1 PTFPUE0}
$003E
Register Write:
(PTFPUE) _{Reset: 0}
0
0
0
0
0
0
0
Figure 17-1. I/O Port Register Summary
MC68HC908AB32 — Rev. 1.1
Freescale Semiconductor
Input/Output (I/O) Ports
Technical Data
313