参数资料
型号: MC68HC705P6ACP
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封装: PLASTIC, DIP-28
文件页数: 15/98页
文件大小: 532K
代理商: MC68HC705P6ACP
Memory
MC68HC705P6A Advance Information Data Sheet, Rev. 2.1
22
Freescale Semiconductor
Addr.
Register Name
Bit 7
654
321
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
0
0000
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
1
0000
Write:
Reset:
Unaffected by reset
$0004
Port A Data Direction
Register (DDRA)
Read:
DDRA7
DDRA6
DDRA5
DDRA4
DDRA3
DDRA2
DDRA1
DDRA0
Write:
Reset:
0000
$0005
Port B Data Direction
Register (DDRB)
Read:
DDRB7
DDRB6
DDRB5
1
1111
Write:
Reset:
0000
$0006
Port C Data Direction
Register (DDRC)
Read:
DDRC7
DDRC6
DDRC5
DDRC4
DDRC3
DDRC2
DDRC1
DDRC0
Write:
Reset:
0000
$0007
Port D Data Direction
Register (DDRD)
Read:
0
DDRD5
0
0000
Write:
Reset:
0000
$0008
Unimplemented
$0009
Unimplemented
$000A
SIOP Control Register
(SCR)
Read:
0
SPE
0
MSTR
0000
Write:
Reset:
0000
$000B
SIOP Status Register
(SSR)
Read:
SPIF
DCOL
0
0000
Write:
Reset:
0000
$000C
SIOP Data Register
(SDR)
Read:
SDR7
SDR6
SDR5
SDR4
SDR3
SSDR2
SDR1
SDR0
Write:
Reset:
Unaffected by reset
= Unimplemented
R
= Reserved
U = Undetermined
Figure 2-3. I/O and Control Register Summary (Sheet 1 of 3)
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相关代理商/技术参数
参数描述
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