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MC81F4316K 参数 Datasheet PDF下载

MC81F4316K图片预览
型号: MC81F4316K
PDF下载: 下载PDF文件 查看货源
内容描述: ABOV半导体的8位单芯片微控制器产品 [ABOV SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS]
分类和应用: 半导体微控制器
文件页数/大小: 200 页 / 4220 K
品牌: FINECHIPS [ FINECHIPS ]
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MC81F4x16  
R3CONL R30~R32  
R3 PORT CONTROL LOW REGISTER  
00DDH  
A reset clears the R3CONL register to 9BH, makes the R32-R30 pins to open-drain output mode.  
You can use R3CONL register setting to select input or output mode (open-drain or push-pull) and  
enable alternative functions.  
When programming the port, please remember that any alternative peripheral I/O function that  
defined by the R3CONL register must also be enabled in the associated peripheral module.  
7
6
5
4
3
2
1
0
R32  
R31  
R30  
R3CONL  
Reset value: 9BH  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
00: Input mode  
01: Input pull-up mode  
R32  
R32  
10: Output mode, open-drain  
11: Output mode, push-pull  
000: Input mode  
001: Input pull-up mode  
R31  
R31/AN14  
R30/AN13  
010: Alternative function (AN14)  
011: Output mode, open-drain  
1xx: Output mode, push-pull  
000: Input mode  
001: Input pull-up mode  
R30  
010: Alternative function (AN13)  
011: Output mode, open-drain  
1xx: Output mode, push-pull  
R3  
R3 PORT DATA REGISTER  
00C3H  
7
6
5
4
3
2
1
0
R37  
R36  
R35  
R34  
R33  
R32  
R31  
R30  
R3  
Reset value:  
--00_0111b  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
In input mode, it represents the R3 port status.  
In output mode, R3 port represents it.  
1: High  
0 : Low  
86  
October 19, 2009 Ver.1.35