DVR21 datasheet(296/416 Pages) MICROCHIP

296 / 416 page

PIC24FJ256GA705 FAMILY

DS30010118D-page 296

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bit 6-2

SMPI<4:0>: Interrupt Sample/DMA Increment Rate Select bits

When DMAEN = 1 and DMABM = 0:

11111 = Increments the DMA address after completion of the 32nd sample/conversion operation

11110 = Increments the DMA address after completion of the 31st sample/conversion operation

•

00001 = Increments the DMA address after completion of the 2nd sample/conversion operation

00000 = Increments the DMA address after completion of each sample/conversion operation

When DMAEN = 1 and DMABM = 1:

11111 = Resets the DMA offset after completion of the 32nd sample/conversion operation

11110 = Resets the DMA offset after completion of the 31nd sample/conversion operation

•

00001 = Resets the DMA offset after completion of the 2nd sample/conversion operation

00000 = Resets the DMA offset after completion of every sample/conversion operation

When DMAEN = 0:

11111 = Interrupts at the completion of the conversion for each 32nd sample

11110 = Interrupts at the completion of the conversion for each 31st sample

•

00001 = Interrupts at the completion of the conversion for every other sample

00000 = Interrupts at the completion of the conversion for each sample

bit 1

BUFM: Buffer Fill Mode Select bit

1 = Starts buffer filling at ADC1BUF0 on first interrupt and ADC1BUF13 on next interrupt

0 = Always starts filling buffer at ADC1BUF0

bit 0

ALTS: Alternate Input Sample Mode Select bit

1 = Uses channel input selects for Sample A on first sample and Sample B on next sample

0 = Always uses channel input selects for Sample A

AD1CON2: A/D CONTROL REGISTER 2 (CONTINUED)

DVR21 数据表(PDF) 296 Page - Microchip Technology