Datasheet
PIC24FJ16MC101/102 AND PIC24FJ32MC101/102/104
DS39997C-page 200 Preliminary © 2011-2012 Microchip Technology Inc.
REGISTER 19-4: AD1CHS123: ADC1 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
PIC24FJ32MC101 devices only:
11 = Reserved
10 = Reserved
0x = CH1, CH2, CH3 negative input is AVss
PIC24FJ32MC101/102 devices only:
11 = CH1 negative input is AN9, CH2 negative input is AN10, CH3 negative input is not connected
10 = Reserved
0x = CH1, CH2, CH3 negative input is AVss
PIC24FJ32MC104 devices only:
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 AVss
bit 8 CH123SB: Channel 1, 2, 3 Positive Input Select for Sample B bit
PIC24FJXX/MC101 devices only:
1 = CH1 positive input is AN3, CH2 and CH3 positive inputs are not connected
0 = CH1 positive input is AN0, CH2 positive input is AN1, CH3 positive input is AN2
All other devices:
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
Refer to bits 10-9 for the available settings.
bit 0 CH123SA: Channel 1, 2, 3 Positive Input Select for Sample A bit
Refer to bit 8 for the available settings.