MC68HC908JB8 Datasheet, PDF (201/286 Pages) Motorola, Inc – MICROCONTROLLERS

Input/Output Ports (I/O)
Introduction
Addr.
Register Name
Bit 7
$0009 Data Direction Register E Read: 0
(DDRE) _Write:
Reset: 0
$001D
Port Option Control ^Read:
Register Write:
(POCR) _Reset:
PTE20P
0
6
5
0
0
0
0
PTDLDD PTDILDD
0
0
= Unimplemented
4
DDRE4
0
PTE4P
0
3
DDRE3
0
PTE3P
0
2
DDRE2
0
PCP
0
1
DDRE1
0
PBP
0
Bit 0
DDRE0
0
PAP
0
Figure 12-1. I/O Port Register Summary
Port
A
B
Table 12-1. Port Control Register Bits Summary
Bit
DDR
0
DDRA0
1
DDRA1
2
DDRA2
3
DDRA3
4
DDRA4
5
DDRA5
6
DDRA6
7
DDRA7
Module
KBI
Module Control
Register
KBIER ($0017)
Control Bit
KBIE0
KBIE1
KBIE2
KBIE3
KBIE4
KBIE5
KBIE6
KBIE7
0–7
DDRB[0:7]
—
—
—
C
0–7
DDRC[0:7]
—
—
—
D
0–7
DDRD[0:7]
0
DDRE0
1
DDRE1
E
2
DDRE2
3
DDRE3
4
DDRE4
—
TIM
USB
—
—
TSC ($000A)
TSC0 ($0010)
TSC1 ($0013)
PS[2:0]
ELS0B:ELS0A
ELS1B:ELS1A
UADDR ($0038)
USBEN
Pin
PTA0/KBA0
PTA1/KBA1
PTA2/KBA2
PTA3/KBA3
PTA4/KBA4
PTA5/KBA5
PTA6/KBA6
PTA7/KBA7
PTB0–PTB7
PTC0–PTC7
PTD0–PTD7
PTE0/TCLK
PTE1/TCH0
PTE2/TCH1
PTE3/D+
PTE4/D–
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
Input/Output Ports (I/O)
Technical Data
201