PIC18F2331 Datasheet, PDF(261/396 Page) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

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PIC18F2331 Datasheet, PDF (261/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

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PIC18F2331/2431/4331/4431

TABLE 20-3: SUMMARY OF A/D REGISTERS

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on

POR, BOR

Value on

all other

Resets

INTCON

GIE/

GIEH

PEIE/ TMR0IE INT0IE

GIEL

RBIE TMR0IF INT0IF

RBIF 0000 0000 0000 0000

PIR1

PSPIF

ADIF

RCIF

TXIF

SSPIF CCP1IF TMR2IF TMR1IF 0000 0000 0000 0000

PIE1

PSPIE

ADIE

RCIE

TXIE

SSPIE CCP1IE TMR2IE TMR1IE 0000 0000 0000 0000

IPR1

PSPIP

ADIP

RCIP

TXIP

SSPIP CCP1IP TMR2IP TMR1IP 1111 1111 1111 1111

PIR2

OSCFIF CMIF

â

EEIF

BCLIF LVDIF TMR3IF CCP2IF 00-0 0000 00-0 0000

PIE2

OSCFIE CMIE

â

EEIE

BCLIE LVDIE TMR3IE CCP2IE 00-0 0000 00-0 0000

IPR2

OSCFIP CMIP

â

EEIP

BCLIP LVDIP TMR3IP CCP2IP 11-1 1111 11-1 1111

ADRESH A/D Result Register High Byte

xxxx xxxx uuuu uuuu

ADRESL A/D Result Register Low Byte

xxxx xxxx uuuu uuuu

ADCON0

â

â

ACONV ACMOD1 ACMOD0 CHS0 GO/DONE ADON 00-1 0000 00-1 0000

ADCON1 VCFG1 VCFG0

â

FIFOEN BFEMT BFOVFL ADPNT1 ADPNT0 --00 qqqq --00 qqqq

ADCON2 ADFM ACQT3 ACQT2 ACQT1 ACQT0 ADCS2 ADCS1 ADCS0 0-00 0000 0-00 0000

ADCON3 ADRS1 ADRS0

â

SSRC4 SSRC3 SSRC2 SSRC1 SSRC0 00-0 0000 00-0 0000

ADCHS GDSEL1 GDSEL0 GBSEL1 GBSEL0 GCSEL1 GCSEL0 GASEL1 GASEL0

ANSEL0 ANS7(6) ANS6(6) ANS5(6) ANS4

ANS3 ANS2

ANS1

ANS0

ANSEL1

â

â

â

â

â

â

â

ANS8(5)

PORTA

RA7(4)

RA6(4)

RA5

RA4

RA3

RA2

RA1

RA0

TRISA TRISA7(4) TRISA6(4) Data Direction Control Register for PORTA

PORTE(2)

â

â

â

â

RE3(1) Read PORTE Pins, Write Late(4)

TRISE(3)

IBF

OBE

IBOV PSPMODE â PORTE Data Direction

LATE(3)

â

â

â

â PORTE Output Data Latch

0000 0000

1111 1111

---- ---1

--0x 0000

--11 1111

---- xxxx

0000 -111

---- -xxx

0000 0000

1111 1111

---- ---1

--0u 0000

--11 1111

---- uuuu

0000 -111

---- -uuu

Legend:

Note 1:

2:

3:

4:

5:

6:

x = unknown, u = unchanged, â = unimplemented, read as â0â, q = value depends on condition.

Shaded cells are not used for A/D conversion.

RE3 port bit is available only as an input pin when MCLRE bit in configuration register is â0â.

This register is not implemented on PIC18F2X31 devices.

These bits are not implemented on PIC18F2X31 devices.

These pins may be configured as port pins depending on the Oscillator mode selected.

ANS5 through ANS8 are available only on the PIC18F4X31 devices.

Not available on 28-pin devices.

ï£© 2003 Microchip Technology Inc.

Preliminary

DS39616B-page 259

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