Datasheet

Section 16 A/D Converter
Rev. 3.00 Mar 17, 2006 page 749 of 926
REJ09B0283-0300
Bit Bit Name Initial Value R/W Description
3
2
1
0
CH3
CH2
CH1
CH0
0
0
0
0
R/W
R/W
R/W
R/W
Channel select 3 to 0
Selects analog input together with bits SCANE
and SCANS in ADCR.
When SCANE = 0 and SCANS = X
0000: AN0 1000: Setting prohibited
0001: AN1 1001: Setting prohibited
0010: AN2 1010: Setting prohibited
0011: AN3 1011: Setting prohibited
0100: AN4 1100: AN12
0101: AN5 1101: AN13
0110: AN6 1110: AN14
0111: AN7 1111: AN15
When SCANE = 1 and SCANS = 0
0000: AN0 1000: Setting prohibited
0001: AN0 and AN1 1001: Setting prohibited
0010: AN0 to AN2 1010: Setting prohibited
0011: AN0 to AN3 1011: Setting prohibited
0100: AN4 1100: AN12
0101: AN4 and AN5 1101: AN12 and AN13
0110: AN4 to AN6 1110: AN12 to AN14
0111: AN4 to AN7 1111: AN12 to AN15
When SCANE = 1 and SCANS = 1
0000: AN0 1000: Setting prohibited
0001: AN0 and AN1 1001: Setting prohibited
0010: AN0 to AN2 1010: Setting prohibited
0011: AN0 to AN3 1011: Setting prohibited
0100: AN0 to AN4 1100: Setting prohibited
0101: AN0 to AN5 1101: Setting prohibited
0110: AN0 to AN6 1110: Setting prohibited
0111: AN0 to AN7 1111: Setting prohibited
Legend: X: Don’t care.
Note: * Only 0 can be written in bit 7, to clear the flag.