PIC24HJ128GP310 datasheet(220/286 Pages) MICROCHIP

220 / 286 page

PIC24HJXXXGPX06/X08/X10

DS70175F-page 218

IESO

FOSCSEL

Internal External Start-up Option bit

1 = Start-up device with FRC, then automatically switch to the user-selected

oscillator source when ready

0 = Start-up device with user-selected oscillator source

FNOSC<2:0>

FOSCSEL

Initial Oscillator Source Selection bits

111 = Internal Fast RC (FRC) oscillator with postscaler

110 = Reserved

101 = LPRC oscillator

100 = Secondary (LP) oscillator

011 = Primary (XT, HS, EC) oscillator with PLL

010 = Primary (XT, HS, EC) oscillator

001 = Internal Fast RC (FRC) oscillator with PLL

000 = FRC oscillator

FCKSM<1:0>

FOSC

Clock Switching Mode bits

1x = Clock switching is disabled, Fail-Safe Clock Monitor is disabled

01 = Clock switching is enabled, Fail-Safe Clock Monitor is disabled

00 = Clock switching is enabled, Fail-Safe Clock Monitor is enabled

OSCIOFNC

FOSC

OSC2 Pin Function bit (except in XT and HS modes)

1 = OSC2 is clock output

0 = OSC2 is general purpose digital I/O pin

POSCMD<1:0>

FOSC

Primary Oscillator Mode Select bits

11 = Primary oscillator disabled

10 = HS Crystal Oscillator mode

01 = XT Crystal Oscillator mode

00 = EC (External Clock) mode

FWDTEN

FWDT

Watchdog Timer Enable bit

1 = Watchdog Timer always enabled (LPRC oscillator cannot be disabled. Clearing

the SWDTEN bit in the RCON register will have no effect.)

0 = Watchdog Timer enabled/disabled by user software (LPRC can be disabled

by clearing the SWDTEN bit in the RCON register)

WINDIS

FWDT

Watchdog Timer Window Enable bit

1 = Watchdog Timer in Non-Window mode

0 = Watchdog Timer in Window mode

WDTPRE

FWDT

Watchdog Timer Prescaler bit

1 = 1:128

0 = 1:32

WDTPOST

FWDT

Watchdog Timer Postscaler bits

1111 = 1:32,768

1110 = 1:16,384

0001 = 1:2

0000 = 1:1

FPWRT<2:0>

FPOR

Power-on Reset Timer Value Select bits

111 = PWRT = 128 ms

110 = PWRT = 64 ms

101 = PWRT = 32 ms

100 = PWRT = 16 ms

011 = PWRT = 8 ms

010 = PWRT = 4 ms

001 = PWRT = 2 ms

000 = PWRT = Disabled

TABLE 20-2:

PIC24HJXXXGPX06/X08/X10 CONFIGURATION BITS DESCRIPTION (CONTINUED)

Bit Field

Description

PIC24HJ128GP310 Datasheet(PDF) 220 Page - Microchip Technology

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