參數(shù)資料
型號: MC68HC05P18MDW
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 70/144頁
文件大小: 1348K
代理商: MC68HC05P18MDW
Memory
Input/Output and Control Registers
MC68HC(8)05P18 — Rev. 2.0
Advance Information
MOTOROLA
Memory
31
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$0000
Port A Data Register
(PORTA)
Read:
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Write:
Reset:
Unaffected by reset
$0001
Port B Data Register
(PORTB)
Read:
PB7
PB6
PB5
00
0
Write:
Reset:
Unaffected by reset
$0002
Port C Data Register
(PORTC)
Read:
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
Write:
Reset:
Unaffected by reset
$0003
Port D Data Register
(PORTD)
Read:
PD7
0
PD5
10
0
Write:
Reset:
Unaffected by reset
$0004
Port A Data Direction
(DDRA)
Read:
DDRA7
DDRA6
DDRA5
DDRA4
DDRA3
DDRA2
DDRA1
DDRA0
Write:
Reset:
0
$0005
Port B Data Direction
(DDRB)
Read:
DDRB7
DDRB6
DDRB5
11
1
Write:
Reset:
0
$0006
Port C Data Direction
(DDRC)
Read:
DDRC7
DDRC6
DDRC5
DDRC4
DDRC3
DDRC2
DDRC1
DDRC0
Write:
Reset:
0
$0007
Port D Data Direction
(DDRD)
Read:
0
DDRD5
00
0
Write:
Reset:
0
$0008
Unimplemented
$0009
Unimplemented
$000A
SIOP Control Register
(SCR)
Read:
0
SPE
0
MSTR
00
0
Write:
Reset:
0
= Unimplemented
R
= Reserved
U = Unaffected
Figure 2-4. I/O and Control Registers (Sheet 1 of 3)
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