R01UH0823EJ0100 Rev.1.00
Page 1544 of 1823
Jul 31, 2019
RX23W Group
44. 12-Bit A/D Converter (S12ADE)
44.2.7
A/D Channel Select Register B1 (ADANSB1)
ADANSB1 selects analog input channels for A/D conversion among AN016 to AN020 and AN027 in group B when
group scan mode is selected. The ADANSB1 register is not used in any scan mode other than group scan mode.
ANSB1n Bit (n = 00 to 04, 11) (A/D Conversion Channel Select)
The ANSB1n bit selects analog input channels for A/D conversion among AN016 to AN020 and AN027 in group B
when group scan mode is selected. The ADANSB1 register is used for group scan mode only; not used for any other
modes. The channels specified in group A (the channels corresponding to group A, selected with the ADANSA0 and
ADANSA1 registers and the ADCSR.DBLANS[4:0] bits in double trigger mode) should be excluded as the channels to
be selected and the number of channels to be set.
The ANSB100 bit corresponds to AN016 and the ANSB111 bit corresponds to AN027.
When performing A/D conversion of the temperature sensor output or internal reference voltage, do not select analog
input channels. The setting value of this register should be 0000h.
The ANSB1n bit should be set while the ADCSR.ADST bit is 0.
Address(es): S12AD.ADANSB1 0008 9016h
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
—
—
—
—
ANSB1
11
—
—
—
—
—
—
ANSB1
04
ANSB1
03
ANSB1
02
ANSB1
01
ANSB1
00
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b0
A/D Conversion Channel Select
0: AN016 to AN020 are not subjected to conversion.
1: AN016 to AN020 are subjected to conversion.
R/W
b1
R/W
b2
R/W
b3
R/W
b4
R/W
b10 to b5
—
Reserved
These bits are read as 0. The write value should be 0.
R/W
b11
A/D Conversion Channel Select
0: AN027 is not subjected to conversion.
1: AN027 is subjected to conversion.
R/W
b15 to b12
—
Reserved
These bits are read as 0. The write value should be 0.
R/W