MC68HC908QY2 MOTOROLA [Motorola, Inc], MC68HC908QY2 Datasheet - Page 36

• Manufacturer Part Number: MC68HC908QY2
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Memory
36
$000C
$000D
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$000A
$000B
$0019
Addr.
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
Port A Input Pullup Enable
Port B Input Pullup Enable
Data Direction Register A
Data Direction Register B
Register Name
Port A Data Register
Port B Data Register
Register (PTAPUE)
Register (PTBPUE)
Unimplemented
Unimplemented
Unimplemented
Unimplemented
Unimplemented
Unimplemented
See page 163.
See page 167.
See page 164.
See page 168.
See page 166.
See page 169.
Figure 2-2. Control, Status, and Data Registers (Sheet 1 of 6)
(DDRA)
(DDRB)
(PTA)
(PTB)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
PTBPUE7 PTBPUE6 PTBPUE5 PTBPUE4 PTBPUE3 PTBPUE2 PTBPUE1 PTBPUE0
OSC2EN
DDRB7
PTB7
Bit 7
U
0
0
0
0
0
0
= Unimplemented
DDRB6
AWUL
PTB6
6
0
0
0
0
0
0
0
Memory
PTAPUE5 PTAPUE4 PTAPUE3 PTAPUE2 PTAPUE1 PTAPUE0
DDRA5
DDRB5
PTA5
PTB5
U
5
0
0
0
0
Unaffected by reset
DDRA4
DDRB4
PTA4
PTB4
U
R
4
0
0
0
0
= Reserved
DDRA3
DDRB3
PTA3
PTB3
U
3
0
0
0
0
DDRB2
PTA2
PTB2
U
U = Unaffected
2
0
0
0
0
0
DDRA1
DDRB1
PTA1
PTB1
U
1
0
0
0
0
MOTOROLA
DDRA0
DDRB0
PTA0
PTB0
Bit 0
U
0
0
0
0