SH7147 Datasheet, PDF (669/1108 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 15 A/D Converter (ADC)
15.3.4 A/D Analog Input Channel Select Registers_0 and _1 (ADANSR_0 and
ADANSR_1)
ADANSRs are 8-bit readable/writable registers that select an analog input channel.
Bit: 7
6
5
4
3
2
1
0
ANS7 ANS6 ANS5 ANS4 ANS3 ANS2 ANS1 ANS0
Initial value: 0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W
Initial
Bit Bit Name Value R/W
7
ANS7
0
R/W
6
ANS6
0
R/W
5
ANS5
0
R/W
4
ANS4
0
R/W
3
ANS3
0
R/W
2
ANS2
0
R/W
1
ANS1
0
R/W
0
ANS0
0
R/W
Description
Setting bits in the A/D analog input channel select
register to 1 selects a channel that corresponds to a
specified bit. For the correspondence between analog
input pins and bits, see table 15.3.
When changing the analog input channel, the ADST bit in
ADCR must be cleared to 0 to prevent incorrect
operations.
Table 15.3 Channel Select List
Bit Name
ANS0
ANS1
ANS2
ANS3
ANS4
ANS5
ANS6
ANS7
A/D_0
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
Analog Input Channels
A/D_1
AN8
AN9
AN10
AN11
AN12
AN13
AN14
AN15
Rev. 3.00 Oct. 06, 2008 Page 645 of 1080
REJ09B0230-0300