CHAPTER 11 10-BIT A/D CONVERTER (
µ
PD789436 AND 789456 SUBSERIES)
User’s Manual U15075EJ2V1UD
205
(2) Analog input channel specification register 0 (ADS0)
ADS0 specifies the port used to input the analog voltage to be converted to a digital signal.
ADS0 is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input clears ADS0 to 00H.
Figure 11-3. Format of Analog Input Channel Specification Register 0
0
0
0
0
0
ADS02
ADS01
ADS00
ADS0
Symbol
Address
After reset
R/W
FF84H
00H
R/W
7
6
5
4
3
2
1
0
Analog input channel specification
Other than above
ADS02
0
0
0
0
1
1
ANI0
ANI1
ANI2
ANI3
ANI4
ANI5
Setting prohibited
ADS01
0
0
1
1
0
0
ADS00
0
1
0
1
0
1
Caution Bits 3 to 7 must be set to 0.