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SH79F166AP044PR Datasheet(PDF) 39 Page - List of Unclassifed Manufacturers

Part # SH79F166AP044PR
Description  Enhanced 8051 microcontroller with 10-bit ADC
PDF  113 Pages
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Manufacturer  ETC1 [List of Unclassifed Manufacturers]
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SH79F166AP044PR Datasheet(HTML) 39 Page - List of Unclassifed Manufacturers

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SH79F166A
39
PORT4:
- INT40-INT43(P4.0-P4.3):外部中断输入
- AN0-AN3(P4.0-P4.3):ADC输入通道
- AVREF(P4.4):AD转换参考电压
Table 7.24 PORT4共用列表
引脚编号
优先级
功能
允许位
14
1
AVREF
ADCON寄存器的REFC位置1
2
P4.4
以上情况都不符合
15-18
1
AN3-AN0
ADCH寄存器的CH3-CH0和SCH[2:0]相应位置1
2
INT43-INT40
IEN1寄存器的EX4位和IENC寄存器的EXS43-EXS40位置1,P4.3-P4.0端口为输
入模式
3
P4.3-P4.0
以上情况都不符合
PORT5:
- XTAL1(P5.0):振荡器输入
- XTAL2(P5.1):振荡器输出
- RST
———
(P5.2):系统复位
- BUZ(P5.3):蜂鸣器输出
- T3(P5.3):定时器3外部输入
Table 7.25 PORT5共用列表
引脚编号
优先级
功能
允许位
8
1
XTAL1
代码选项
2
P5.0
以上情况都不符合
9
1
XTAL2
代码选项
2
P5.1
以上情况都不符合
10
1
RST
———
代码选项
2
P5.2
代码选项
11
1
BUZ
BUZCON寄存器中的BZEN位置1
2
T3
T3CON寄存器的TR3位置1且T3CLKS[1:0] = 01(自动上拉)
3
P5.3
以上情况都不符合



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