Datasheet
PIC24F16KA102 FAMILY
DS39927C-page 178 2008-2011 Microchip Technology Inc.
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REGISTER 22-4: AD1CHS: A/D INPUT SELECT REGISTER
R/W-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
CH0NB — — — CH0SB3 CH0SB2 CH0SB1 CH0SB0
bit 15 bit 8
R/W
-0
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
CH0NA — — — CH0SA3 CH0SA2 CH0SA1 CH0SA0
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 CH0NB: Channel 0 Negative Input Select for MUX B Multiplexer Setting bit
1 = Channel 0 negative input is AN1
0 = Channel 0 negative input is V
R-
bit 14-12 Unimplemented: Read as ‘0’
bit 11-8 CH0SB<3:0>: Channel 0 Positive Input Select for MUX B Multiplexer Setting bits
1111 = Channel 0 positive input is band gap reference (V
BG)
1110 = Channel 0 positive input is band gap, divided by two, reference (V
BG/2)
1101 = No channels connected (actual A/D MUX switch activates, but input floats); used for CTMU
1100 = Channel 0 positive input is AN12
1011 = Channel 0 positive input is AN11
1010 = Channel 0 positive input is AN10
1001 = Reserved
1000 = Reserved
0111 = AV
DD
0110 = AVSS
0101 = Channel 0 positive input is AN5
0100 = Channel 0 positive input is AN4
0011 = Channel 0 positive input is AN3
0010 = Channel 0 positive input is AN2
0001 = Channel 0 positive input is AN1
0000 = Channel 0 positive input is AN0
bit 7 CH0NA: Channel 0 Negative Input Select for MUX A Multiplexer Setting bit
1 = Channel 0 negative input is AN1
0 = Channel 0 negative input is V
R-
bit 6-4 Unimplemented: Read as ‘0’
bit 3-0 CH0SA<3:0>: Channel 0 Positive Input Select for Sample A bits
1111 = Channel 0 positive input is band gap reference (V
BG)
1110 = Channel 0 positive input is band gap, divided by two, reference (V
BG/2)
1101 = No channels connected (actual A/D MUX switch activates but input floats); used for CTMU
1100 = Channel 0 positive input is AN12
1011 = Channel 0 positive input is AN11
1010 = Channel 0 positive input is AN10
1001 = Reserved
1000 = Reserved
0111 = AV
DD
0110 = AVSS
0101 = Channel 0 positive input is AN5
0100 = Channel 0 positive input is AN4
0011 = Channel 0 positive input is AN3
0010 = Channel 0 positive input is AN2
0001 = Channel 0 positive input is AN1
0000 = Channel 0 positive input is AN0