Datasheet

© 2007-2011 Microchip Technology Inc. DS70264E-page 173
dsPIC33FJ12GP201/202
REGISTER 18-5: AD1CHS0: ADC1 INPUT CHANNEL 0 SELECT REGISTER
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CH0NB
— — CH0SB<4:0>
bit 15 bit 8
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CH0NA
— — CH0SA<4:0>
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 Sample B bit
1 = Channel 0 negative input is AN1
0 = Channel 0 negative input is V
REF-
bit 14-13 Unimplemented: Read as ‘0’
bit 12-8 CH0SB<4:0>: Channel 0 Positive Input Select for Sample B bits
dsPIC33FJ12GP201 devices only:
00111 = Channel 0 positive input is AN7
00110 = Channel 0 positive input is AN6
00101 = Reserved
00100 = Reserved
00011 = Channel 0 positive input is AN3
00010 = Channel 0 positive input is AN2
00001 = Channel 0 positive input is AN1
00000 = Channel 0 positive input is AN0
dsPIC33FJ12GP202 devices only:
01001 = Channel 0 positive input is AN9
•
•
•
00010 = Channel 0 positive input is AN2
00001 = Channel 0 positive input is AN1
00000 = Channel 0 positive input is AN0
bit 7 CH0NA: Channel 0 Negative Input Select for Sample A bit
1 = Channel 0 negative input is AN1
0 = Channel 0 negative input is V
REF-
bit 6-5 Unimplemented: Read as ‘0’
bit 4-0 CH0SA<4:0>: Channel 0 Positive Input Select for Sample A bits
dsPIC33FJ12GP201 devices only:
00111 = Channel 0 positive input is AN7
00110 = Channel 0 positive input is AN6
00101 = Reserved
00100 = Reserved
00011 = Channel 0 positive input is AN3
00010 = Channel 0 positive input is AN2
00001 = Channel 0 positive input is AN1
00000 = Channel 0 positive input is AN0
dsPIC33FJ12GP202 devices only:
01001 = Channel 0 positive input is AN9
•
•
•
00010 = Channel 0 positive input is AN2
00001 = Channel 0 positive input is AN1
00000 = Channel 0 positive input is AN0