SH7280 Datasheet, PDF (1013/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 20 A/D Converter (ADC)
20.3.4 A/D Analog Input Channel Select Registers 0 to 2 (ADANSR_0 to ADANSR_2)
ADANSR is an 8-bit readable/writable register that selects an analog input channel.
Bit: 7
6
5
4
3
2
1
0
-
-
-
- ANS3 ANS2 ANS1 ANS0
Initial value: 0
0
0
0
0
0
0
0
R/W: R
R
R
R R/W R/W R/W R/W
Initial
Bit Bit Name Value R/W
7 to 4 
All 0
R
3
ANS3
0
R/W
2
ANS2
0
R/W
1
ANS1
0
R/W
0
ANS0
0
R/W
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
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 20.3.
When changing the analog input channel, the ADST bit in
ADCR must be cleared to 0 to prevent incorrect
operations.
Table 20.3 Channel Select List
Bit Name
ANS0
ANS1
ANS2
ANS3
A/D_0
AN0
AN1
AN2
AN3
Analog Input Channels
A/D_1
A/D_2
AN4
AN8 (only for SH7286)
AN5
AN9 (only for SH7286)
AN6
AN10 (only for SH7286)
AN7
AN11 (only for SH7286)
Rev. 1.00 Jun. 26, 2008 Page 983 of 1692
REJ09B0393-0100