PIC24FJ128GA310 datasheet(305/406 Pages) MICROCHIP

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DS39996F-page 305

PIC24FJ128GA310 FAMILY

AD1CON5: A/D CONTROL REGISTER 5

R/W-0

U-0

R/W-0

ASEN

LPEN

CTMREQ

BGREQ

—

ASINT1

ASINT0

bit 15

bit 8

U-0

R/W-0

—

WM1

WM0

CM1

CM0

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

ASEN:

Auto-Scan Enable bit

= Auto-scan is enabled

= Auto-scan is disabled

bit 14

LPEN:

Low-Power Enable bit

= Low power is enabled after scan

= Full power is enabled after scan

bit 13

CTMREQ:

CTMU Request bit

= CTMU is enabled when the A/D is enabled and active

= CTMU is not enabled by the A/D

bit 12

BGREQ:

Band Gap Request bit

= Band gap is enabled when the A/D is enabled and active

= Band gap is not enabled by the A/D

bit 11-10

Unimplemented:

Read as ‘0’

bit 9-8

ASINT<1:0>:

Auto-Scan (Threshold Detect) Interrupt Mode bits

= Interrupt after Threshold Detect sequence completed and valid compare has occurred

= Interrupt after valid compare has occurred

= Interrupt after Threshold Detect sequence completed

= No interrupt

bit 7-4

Unimplemented:

Read as ‘0’

bit 3-2

WM<1:0>:

Write Mode bits

= Reserved

= Auto-compare only (conversion results are not saved, but interrupts are generated when a valid

match occurs, as defined by the CM and ASINT bits)

= Convert and save (conversion results are saved to locations as determined by the register bits

when a match occurs, as defined by the CM bits)

= Legacy operation (conversion data is saved to a location determined by the buffer register bits)

bit 1-0

CM<1:0>:

Compare Mode bits

= Outside Window mode (valid match occurs if the conversion result is outside of the window defined by

the corresponding buffer pair)

= Inside Window mode (valid match occurs if the conversion result is inside the window defined by the

corresponding buffer pair)

= Greater Than mode (valid match occurs if the result is greater than the value in the corresponding

buffer register)

= Less Than mode (valid match occurs if the result is less than the value in the corresponding buffer

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