参数资料
型号: MC68HC05C9EFB
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 70/144页
文件大小: 1628K
代理商: MC68HC05C9EFB
Memory
I/O Registers
MC68HC05C9E
Advance Information
MOTOROLA
Memory
31
N
O
N-D
I
SC
L
O
SU
R
E
AG
R
EEMENT
R
E
Q
U
IR
ED
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$0000
Port A Data Register
(PORTA)
See page 55.
Read:
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Write:
Reset:
Unaffected by reset
$0001
Port B Data Register
(PORTB)
See page 56.
Read:
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
Write:
Reset:
Unaffected by reset
$0002
Port C Data Register
(PORTC)
See page 57.
Read:
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
Write:
Reset:
Unaffected by reset
$0003
Port D Data Register
(PORTD)
See page 57.
Read:
PD7
PD5
PD4
PD3
PD2
PD1
PD0
Write:
Reset:
Unaffected by reset
$0004
Port A Data Direction Register
(DDRA)
See page 55.
Read:
DDRA7
DDRA6
DDRA5
DDRA4
DDRA3
DDRA2
DDRA1
DDRA0
Write:
Reset:
0
$0005
Port B Data Direction Register
(DDRB)
See page 56.
Read:
DDRB7
DDRB6
DDRB5
DDRB4
DDRB3
DDRB2
DDRB1
DDRB0
Write:
Reset:
0
$0006
Port C Data Direction Register
(DDRC)
See page 57.
Read:
DDRC7
DDRC6
DDRC5
DDRC4
DDRC3
DDRC2
DDRC1
DDRC0
Write:
Reset:
0
$0007
Port D Data Direction Register
(DDRD)
See page 57.
Read:
DDRC7
DDRC5
DDRC4
DDRC3
DDRC2
DDRC1
DDRC0
Write:
Reset:
0
$0008
Unimplemented
= Unimplemented
R
= Reserved
U = Unaffected
Figure 2-3. Input/Output Registers (Sheet 1 of 4)
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