參數(shù)資料
型號: μPD789406
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 59/128頁
文件大小: 607K
代理商: ΜPD789406
59
μ
PD789405, 789406, 789407
(2) A/D input selection register (ADS)
The ADS register specifies the port used to input the analog voltages to be converted to a digital signal. The
ADS can be manipulated using a 1-bit or 8-bit memory manipulation instruction.
A RESET input clears the ADS to 00H.
Figure 5-27. A/D Input Selection Register Format
0
0
0
0
0
ADS2 ADS1 ADS0
ADS
Symbol
Address
When reset
R/W
FF84H
00H
R/W
7
6
5
4
3
2
1
0
Analog input channel specification
ADS2
0
0
0
0
1
1
1
1
ANI0
ANI1
ANI2
ANI3
ANI4
ANI5
ANI6
Not to be set
ADS1
0
0
1
1
0
0
1
1
ADS0
0
1
0
1
0
1
0
1
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