參數(shù)資料
型號： MC68HC05P8EVS
廠商： Motorola, Inc.
英文描述： HCMOS MICROCONTROLLER UNIT
中文描述： HCMOS微控制器
文件頁數(shù)： 21/82頁
文件大?。?/td> 327K
代理商： MC68HC05P8EVS
MC68HC705J2
Rev. 2
PARALLEL I/O
MOTOROLA
3-3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
3.2 Port A
Port A is an 8-bit general-purpose bidirectional I/O port. The contents of DDRA
determine whether each pin is an input or an output.
Figure 3-2
and
Figure 3-3
show
the port A data register and DDRA.
Figure 3-2. Port A Data Register
PA7–PA0 — Port A Data Bits
These read/write bits are software-programmable. Data direction of each bit is
under the control of the corresponding DDRA bit.
Figure 3-3. Port A Data Direction Register
DDRA7–DDRA0 — Port A Data Direction Bits
These read/write bits control port A data direction.
1 = Corresponding port A pin configured as output
0 = Corresponding port A pin configured as input
PORTA
— Port A Data Register
$0000
Bit 7
PA7
6
5
4
3
2
1
Bit 0
PA0
PA6
PA5
PA4
PA3
PA2
PA1
RESET:
NOT CHANGED BY RESET
DDRA
— Port A Data Direction Register
$0004
Bit 7
0
0
6
0
0
5
4
3
2
1
Bit 0
DDRA0
0
DDRA5
0
DDRA4
0
DDRA3
0
DDRA2
0
DDRA1
0
RESET:
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC05P8P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
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MC68HC05P9ACDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P9ACP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
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