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7906 参数 Datasheet PDF下载

7906图片预览
型号: 7906
PDF下载: 下载PDF文件 查看货源
内容描述: 16位单片机 [16-BIT SINGLE-CHIP MICROCOMPUTER]
分类和应用: 计算机
文件页数/大小: 531 页 / 3056 K
品牌: RENESAS [ RENESAS TECHNOLOGY CORP ]
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APPENDIX  
Appendix 2. Control registers  
b7 b6 b5 b4 b3 b2 b1 b0  
Port Pi register (i = 1, 2, 5 to 7)  
(Addresses 316, 616, B16, E16, F16)  
Funtion  
Bit  
0
Bit name  
At reset R/W  
Undefined RW  
Undefined RW  
Undefined RW  
Undefined RW  
Undefined RW  
Undefined RW  
Undefined RW  
Undefined RW  
Reference  
5-4  
Port pin Pi0  
Port pin Pi1  
Port pin Pi2  
Port pin Pi3  
Port pin Pi4  
Port pin Pi5  
Port pin Pi6  
Port pin Pi7  
Data is input from or output to a pin by reading from  
or writing to the corresponding bit.  
1
2
0 : Llevel  
1 : Hlevel  
3
4
5
6
7
Notes 1: Nothing is assigned for bits 0 to 4 of the port P5 register. These bits are undefined at reading.  
2: Nothing is assigned for bits 6 and 7 of the port P6 register. These bits are undefined at reading.  
3: Nothing is assigned for bits 5 to 7 of the port P7 register. These bits are undefined at reading.  
b7 b6 b5 b4 b3 b2 b1 b0  
At reset R/W  
Port Pi direction register (i = 1, 2, 5 to 7)  
(Addresses 516, 816, D16, 1016, 1116)  
Bit  
Bit name  
Function  
Reference  
5-3  
Port P1  
11-18  
P6or-t20  
P2  
0
1
2
3
4
5
6
7
Port Pi0 direction bit  
Port Pi1 direction bit  
Port Pi2 direction bit  
Port Pi3 direction bit  
Port Pi4 direction bit  
Port Pi5 direction bit  
Port Pi6 direction bit  
Port Pi7 direction bit  
0
0
0
0
0
0
0
0
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
0 : Input mode  
(The port functions as an input port.)  
1 : Output mode  
7-10  
8-6  
(The port functions as an output port.)  
9-9  
P5  
P6or-t20  
8-6  
10-13  
Port P6  
5-6  
7-10  
P7  
P6or-t20  
9-9  
12-11  
Notes 1: Nothing is assigned for bits 0 to 4 of the port P5 direction register. These bits are undefined at reading.  
2: Nothing is assigned for bits 6 and 7 of the port P6 direction register. These bits are undefined at reading.  
3: Nothing is assigned for bits 5 to 7 of the port P7 direction register. These bits are undefined at reading.  
4: Any of bits 0 to 5 of the port P6 direction register becomes 0by input of a falling edge to pin P6OUTCUT/INT4. (Refer to  
section “5.2.3 Pin P6OUTCUT/INT4.”)  
7906 Group Users Manual Rev.2.0  
20-11  
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