RX610 Group
23. A/D Converter
R01UH0032EJ0120 Rev.1.20
Page 783 of 1006
Feb 20, 2013
23.2.2
A/D Control/Status Register (ADCSR)
Addresses:
AD0.ADCSR 0008 8050h, AD1.ADCSR 0008 8070h
AD2.ADCSR 0008 8090h, AD3.ADCSR 0008 80B0h
—
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
x
0
0
0
0
0
0
0
—
ADIE
ADST
CH[3:0]
[Legend] x: Undefined
Bit
Symbol
Bit Name
Description
R/W
b3 to b0
CH[3:0]
Channel Select
*
Unit
Single mode
(ADCR.MODE[1:0] = 00b)
Scan mode
(ADCR.MODE[1:0] =
10b or 11b)
R/W
Unit 0
b3 b0
0 0 0 0: AN0
0 0 0 1: AN1
0 0 1 0: AN2
0 0 1 1: AN3
Settings other than above are
prohibited.
b3 b0
0 0 0 0: AN0
0 0 0 1: AN0 and AN1
0 0 1 0: AN0 to AN2
0 0 1 1: AN0 to AN3
Settings other than above are
prohibited.
Unit 1
b3 b0
0 0 0 0: AN4
0 0 0 1: AN5
0 0 1 0: AN6
0 0 1 1: AN7
Settings other than above are
prohibited.
b3 b0
0 0 0 0: AN4
0 0 0 1: AN4 and AN5
0 0 1 0: AN4 to AN6
0 0 1 1: AN4 to AN7
Settings other than above are
prohibited.
Unit 2
b3 b0
0 0 0 0: AN8
0 0 0 1: AN9
0 0 1 0: AN10
0 0 1 1: AN11
Settings other than above are
prohibited.
b3 b0
0 0 0 0: AN8
0 0 0 1: AN8 and AN9
0 0 1 0: AN8 to AN10
0 0 1 1: AN8 to AN11
Settings other than above are
prohibited.
Unit 3
b3 b0
0 0 0 0: AN12
0 0 0 1: AN13
0 0 1 0: AN14
0 0 1 1: AN15
Settings other than above are
prohibited.
b3 b0
0 0 0 0: AN12
0 0 0 1: AN12 and AN13
0 0 1 0: AN12 to AN14
0 0 1 1: AN12 to AN15
Settings other than above are
prohibited.
b4
Reserved
This bit is always read as 0. The write value should always be 0.
R/W
b5
ADST
A/D Start
0: Stops A/D conversion
1: Starts A/D conversion
R/W