R01UH0823EJ0100 Rev.1.00
Page 1543 of 1823
Jul 31, 2019
RX23W Group
44. 12-Bit A/D Converter (S12ADE)
44.2.6
A/D Channel Select Register B0 (ADANSB0)
ADANSB0 selects analog input channels for A/D conversion among AN000 to AN007 in group B when group scan
mode is selected. The ADANSB0 register is not used in any scan mode other than group scan mode.
ANSB0n Bit (n = 00 to 07) (A/D Conversion Channel Select)
The ANSB0n bit selects analog input channels for A/D conversion among AN000 to AN007 in group B when group scan
mode is selected. The ADANSB0 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 ANSB000 bit corresponds to AN000 and the ANSB007 bit corresponds to AN007.
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 ANSB0n bit should be set while the ADCSR.ADST bit is 0.
Address(es): S12AD.ADANSB0 0008 9014h
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
—
—
—
—
—
—
—
—
ANSB0
07
ANSB0
06
ANSB0
05
ANSB0
04
ANSB0
03
ANSB0
02
ANSB0
01
ANSB0
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: AN000 to AN007 are not subjected to conversion.
1: AN000 to AN007 are subjected to conversion.
R/W
b1
R/W
b2
R/W
b3
R/W
b4
R/W
b5
R/W
b6
R/W
b7
R/W
b15 to b8
—
Reserved
These bits are read as 0. The write value should be 0.
R/W