Datasheet

 2009-2012 Microchip Technology Inc. DS70594D-page 255
dsPIC33FJXXXMCX06A/X08A/X10A
REGISTER 22-5: ADxCHS123: ADCx INPUT CHANNEL 1, 2, 3 SELECT REGISTER
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — CH123NB<1:0> CH123SB
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — CH123NA<1:0> CH123SA
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-9 CH123NB<1:0>: Channel 1, 2, 3 Negative Input Select for Sample B bits
When AD12B = 1, CHxNB is: U-0, Unimplemented, Read as ‘0’.
11 = CH1 negative input is AN9; CH2 negative input is AN10; CH3 negative input is AN11
10 = CH1 negative input is AN6; CH2 negative input is AN7; CH3 negative input is AN8
0x = CH1, CH2, CH3 negative input is V
REF-
bit 8 CH123SB: Channel 1, 2, 3 Positive Input Select for Sample B bit
When AD12B = 1, CHxSB is: U-0, Unimplemented, Read as ‘0’.
1 = CH1 positive input is AN3; CH2 positive input is AN4; CH3 positive input is AN5
0 = CH1 positive input is AN0; CH2 positive input is AN1; CH3 positive input is AN2
bit 7-3 Unimplemented: Read as ‘0’
bit 2-1 CH123NA<1:0>: Channel 1, 2, 3 Negative Input Select for Sample A bits
When AD12B = 1, CHxNA is: U-0, Unimplemented, Read as ‘0’.
11 = CH1 negative input is AN9; CH2 negative input is AN10; CH3 negative input is AN11
10 = CH1 negative input is AN6; CH2 negative input is AN7; CH3 negative input is AN8
0x = CH1, CH2, CH3 negative input is V
REF-
bit 0 CH123SA: Channel 1, 2, 3 Positive Input Select for Sample A bit
When AD12B = 1, CHxSA is: U-0, Unimplemented, Read as ‘0’.
1 = CH1 positive input is AN3; CH2 positive input is AN4; CH3 positive input is AN5
0 = CH1 positive input is AN0; CH2 positive input is AN1; CH3 positive input is AN2