CHAPTER 12 A/D CONVERTER
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User’s Manual U14359EJ4V0UM
(4) A/D conversion result registers (ADCR0 to ADCR7, ADCR0H to ADCR7H)
The ADCRn register is a 10-bit register holding the A/D conversion results. There are eight 10-bit registers.
These registers are read-only in 16-bit or 8-bit units. During 16-bit access, the ADCRn register is specified,
and during higher 8-bit access, the ADCRnH register is specified (n = 0 to 7).
When reading the 10-bit data of the A/D conversion results from the ADCRn register during 16-bit access,
only the lower 10 bits are valid and the higher 6 bits are always read as 0.
15
0
14
0
13
0
12
0
11
0
10
0
9
AD
n9
8
AD
n8
7
AD
n7
6
AD
n6
5
AD
n5
4
AD
n4
3
AD
n3
2
AD
n2
1
AD
n1
0
AD
n0
ADCRn
Address
FFFFF210H to
FFFFF21EH
After reset
0000H
7
AD
n9
6
AD
n8
5
AD
n7
4
AD
n6
3
AD
n5
2
AD
n4
1
AD
n3
0
AD
n2
ADCRnH
Address
FFFFF220H to
FFFFF227H
After reset
00H
Remark
n = 0 to 7
The correspondence between each analog input pin and the ADCRn register (except the 4-buffer mode) is
shown below.
Analog Input Pin
ADCRn Register
ANI0
ADCR0, ADCR0H
ANI1
ADCR1, ADCR1H
ANI2
ADCR2, ADCR2H
ANI3
ADCR3, ADCR3H
ANI4
ADCR4, ADCR4H
ANI5
ADCR5, ADCR5H
ANI6
ADCR6, ADCR6H
ANI7
ADCR7, ADCR7H