Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller SSOP 28 16-Bit 40 null I/O number 21

dsPIC33FJ12MC201/202

DS70265E-page 202 © 2007-2011 Microchip Technology Inc.

bit 2-1 CH123NA<1:0>: Channel 1, 2, 3 Negative Input Select for Sample A bits

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-

bit 0 CH123SA: Channel 1, 2, 3 Positive Input Select for Sample A bit

dsPIC33FJ12MC201 devices only:

If AD12B =

1:

1 = Reserved

0 = Reserved

If AD12B =

0:

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

dsPIC33FJ12MC202 devices only:

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 20-4: AD1CHS123: ADC1 INPUT CHANNEL 1, 2, 3 SELECT REGISTER (CONTINUED)