參數(shù)資料
型號: MC68HC05C9AMFN
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 42/124頁
文件大?。?/td> 774K
代理商: MC68HC05C9AMFN
Memory
MC68HC05C9A Advance Information Data Sheet, Rev. 5.1
24
Freescale Semiconductor
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
PB4
PB3
PB2
PB1
PB0
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
PD5
PD4
PD3
PD2
PD1
PD0
Write:
Reset:
Unaffected by reset
$0004
Port A Data Direction Register
(DDRA)
Read:
DDRA7
DDRA6
DDRA5
DDRA4
DDRA3
DDRA2
DDRA1
DDRA0
Write:
Reset:
0
$0005
Port B Data Direction Register
(DDRB)
Read:
DDRB7
DDRB6
DDRB5
DDRB4
DDRB3
DDRB2
DDRB1
DDRB0
Write:
Reset:
0
$0006
Port C Data Direction Register
(DDRC)
Read:
DDRC7
DDRC6
DDRC5
DDRC4
DDRC3
DDRC2
DDRC1
DDRC0
Write:
Reset:
0
$0007
Port D Data Direction Register
(DDRD)
Read:
DDRC7
DDRC5
DDRC4
DDRC3
DDRC2
DDRC1
DDRC0
Write:
Reset:
0
$0008
Unimplemented
$0009
Unimplemented
$000A
SPI Control Register
(SPCR)
Read:
SPIE
SPE
DWOM
MSTR
CPOL
CPHA
SPR1
SPR0
Write:
Reset:
0
1
U
$000B
SPI Status Register
(SPSR)
Read:
SPIF
WCOL
0
MODF
0
Write:
Reset:
0
$000C
SPI Data Register
(SPDR)
Read:
SPD7
SPD6
SPD5
SPD4
SPD3
SPD2
SPD1
SPD0
Write:
Reset:
Unaffected by reset
= Unimplemented
R
= Reserved
U = Unaffected
Figure 2-3. Input/Output Registers (Sheet 1 of 3)
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