Datasheet

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
DS70291G-page 292 © 2007-2012 Microchip Technology Inc.
bit 2-1 CH123NA<1:0>: Channel 1, 2, 3 Negative Input Select for Sample A bits
dsPIC33FJ32MC302, dsPIC33FJ64MC202/802 and dsPIC33FJ128MC202/802 devices only:
If AD12B =
1:
11 = Reserved
10 = Reserved
01 = Reserved
00 = Reserved
If AD12B =
0:
11 = Reserved
10 = Reserved
01 = CH1, CH2, CH3 negative input is V
REF-
00 = CH1, CH2, CH3 negative input is VREF-
dsPIC33FJ32MC304, dsPIC33FJ64MC204/804 and dsPIC33FJ128MC204/804 devices only:
If AD12B =
1:
11 = Reserved
10 = Reserved
01 = Reserved
00 = Reserved
If AD12B =
0:
11 = Reserved
10 = CH1 negative input is AN6, CH2 negative input is AN7, CH3 negative input is AN8
01 = CH1, CH2, CH3 negative input is V
REF-
00 = CH1, CH2, CH3 negative input is VREF-
bit 0 CH123SA: Channel 1, 2, 3 Positive Input Select for Sample A bit
If AD12B = 1:
1 = Reserved
0 = Reserved
If AD12B =
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
REGISTER 22-5: AD1CHS123: ADC1 INPUT CHANNEL 1, 2, 3 SELECT REGISTER (CONTINUED)