70291E Datasheet, PDF (282/436 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
REGISTER 22-5: AD1CHS123: ADC1 INPUT CHANNEL 1, 2, 3 SELECT REGISTER
U-0
—
bit 15
U-0
U-0
U-0
U-0
R/W-0
R/W-0
—
—
—
—
CH123NB<1:0>
R/W-0
CH123SB
bit 8
U-0
—
bit 7
U-0
U-0
U-0
U-0
R/W-0
R/W-0
R/W-0
—
—
—
—
CH123NA<1:0>
CH123SA
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-11
bit 10-9
bit 8
bit 7-3
Unimplemented: Read as ‘0’
CH123NB<1:0>: Channel 1, 2, 3 Negative Input Select for Sample B 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 VREF-
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 VREF-
00 = CH1, CH2, CH3 negative input is VREF-
CH123SB: Channel 1, 2, 3 Positive Input Select for Sample B 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
Unimplemented: Read as ‘0’
DS70291E-page 282
© 2011 Microchip Technology Inc.