MC68HC908JG16 Datasheet, PDF (257/324 Pages) Motorola, Inc – Microcontrollers

Input/Output (I/O) Ports
Introduction
Addr.
Register Name
Bit 7
Read: 0
$0009
Data Direction Register E
(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 14-1. I/O Port Register Summary
Table 14-1. Port Control Register Bits Summary
Port
Bit
DDR
Module
Module Control
Register
Control Bit
0
DDRA0
1
DDRA1
2
DDRA2
3
DDRA3
ADC
ADSCR⁽¹⁾
$0061
ADCH[4:0]
A
4
DDRA4
KBI
5
DDRA5
KBIER
$0017
KBIE[7:0]
6
DDRA6
7
DDRA7
B
0
DDRB0
—
—
—
0
DDRC0
C
SCI
1
DDRC1
SCC1
$005A
ENSCI
D
0–3
DDRD[0:3]
—
—
—
0
DDRE0
TIM1
or
TIM2
T1SC $000A
or
T2SC $0040
PS[2:0]
T1SC0 $0010 ELS0B:ELS0A
1
DDRE1
TIM1
or
or
T1SC1 $0013 ELS1B:ELS1A
E
T2SC0 $0046 ELS0B:ELS0A
2
DDRE2
TIM2
or
or
T2SC1 $0049 ELS1B:ELS1A
3
DDRE3
4
DDRE4
USB
UADDR
$0038
USBEN
Notes:
1. Register has the highest priority control on port pin.
MC68HC908JG16 — Rev. 1.1
Freescale Semiconductor
Input/Output (I/O) Ports
Pin
PTA0/KBA0/AD0
PTA1/KBA1/AD1
PTA2/KBA2/AD2
PTA3/KBA3/AD3
PTA4/KBA4/AD4
PTA5/KBA5/AD5
PTA6/KBA6/AD6
PTA7/KBA7/AD7
PTB0
PTC0/TxD
PTC1/RxD
PTD0–PTD3
PTE0/TCLK
PTE1/T1CH01
PTE2/T2CH01
PTE3/D+
PTE4/D–
Technical Data
257