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參數資料
型號: W7411250
廠商: WINBOND ELECTRONICS CORP
英文描述: 4-BIT Microcontroller(4位的微控制器)
中文描述: 4位微控制器(第4位的微控制器)
文件頁數: 18/86頁
文件大小: 478K
代理商: W7411250
W741L250
- 18 -
Port Mode 0 Register (PM0)
The port mode 0 register is organized as a 4-bit binary register (PM0.0 to PM0.3). PM0 can be used
to determine the structure of the input/output ports; it is controlled by the MOV PM0, #I instruction.
The bit descriptions are as follows:
PM0
w
w
w
0
1
2
w
3
Note: W means write only.
Bit 0 = 0 RA port is CMOS output type.
Bit 0 = 1 RA port is NMOS open drain output type.
Bit 1 = 0 RB port is CMOS output type.
Bit 1 = 1 RB port is NMOS open drain output type.
Bit 2 = 0 RC port pull-high resistor is disabled.
Bit 2 = 1 RC port pull-high resistor is enabled.
Bit 3 = 0 RD port pull-high resistor is disabled.
Bit 3 = 1 RD port pull-high resistor is enabled.
Port Mode 1 Register (PM1)
The port mode 1 register is organized as a 4-bit binary register (PM1.0 to PM1.3). PM1 can be used
to control the input/output mode of port RA. PM1 is controlled by the MOV PM1, #I instruction. The bit
descriptions are as follows:
PM1
w
w
w
0
1
2
w
3
Note: W means write only.
Bit 0 = 0 RA.0 works as output pin.
Bit 1 = 0 RA.1 works as output pin.
Bit 2 = 0 RA.2 works as output pin.
Bit 3 = 0 RA.3 works as output pin.
Bit 0 = 1 RA.0 works as input pin.
Bit 1 = 1 RA.1 works as input pin.
Bit 2 = 1 RA.2 works as input pin.
Bit 3 = 1 RA.3 works as input pin.
After initial reset, port RA is in input mode (PM1 = 1111B).
相關PDF資料
PDF描述
W741L250 4-BIT MICROCONTROLLER
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相關代理商/技術參數
參數描述
W741C20X 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W741C250 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
W741C260 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W741E200 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
W741E201 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER