70592C datasheet(224/314 Pages) MICROCHIP

224 / 314 page

PIC24HJXXXGPX06A/X08A/X10A

DS70592C-page 224

IESO

FOSCSEL Immediate 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

If clock

switch is

enabled,

RTSP

effect is on

any device

Reset;

otherwise,

Immediate

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

Immediate 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

Immediate 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

Immediate 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

Immediate 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

Immediate Watchdog Timer Window Enable bit

1 = Watchdog Timer in Non-Window mode

0 = Watchdog Timer in Window mode

PLLKEN

FWDT

Immediate PLL Lock Enable bit

1 = Clock switch to PLL source will wait until the PLL lock signal is valid.

0 = Clock switch will not wait for the PLL lock signal.

WDTPRE

FWDT

Immediate Watchdog Timer Prescaler bit

1 = 1:128

0 = 1:32

WDTPOST

FWDT

Immediate Watchdog Timer Postscaler bits

1111 = 1:32,768

1110 = 1:16,384

0001 = 1:2

0000 = 1:1

TABLE 21-2:

PIC24HJXXXGPX06A/X08A/X10A CONFIGURATION BITS DESCRIPTION

(CONTINUED)

Bit Field

RTSP

Effect

Description

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