PIC24F04KA201 datasheet(167/224 Pages) MICROCHIP

167 / 224 page

Preliminary

DS39937B-page 165

PIC24F04KA201 FAMILY

FOSC: OSCILLATOR CONFIGURATION REGISTER

R/P-1

FCKSM1

FCKSM0

SOSCSEL POSCFREQ1 POSCFREQ0 OSCIOFNC POSCMD1

POSCMD0

bit 7

bit 0

Legend:

R = Readable bit

P = Programmable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-6

FCKSM<1:0>:

Clock Switching and Monitor Selection Configuration bits

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

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

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

bit 5

SOSCSEL:

Secondary Oscillator Select Bit

= Secondary oscillator configured for high-power operation

= Secondary oscillator configured for low-power operation

bit 4-3

POSCFREQ<1:0>:

Primary Oscillator Frequency Range Configuration bits

= Primary oscillator/external clock input frequency greater than 8 MHz

= Primary oscillator/external clock input frequency between 100 kHz and 8 MHz

= Primary oscillator/external clock input frequency less than 100 kHz

= Reserved; do not use

bit 2

OSCIOFNC:

CLKO Enable Configuration bit

= CLKO output signal active on the OSCO pin; primary oscillator must be disabled or configured for

the External Clock mode (EC) for the CLKO to be active (POSCMD<1:0> = 11 or 00)

= CLKO output disabled

bit 1-0

POSCMD<1:0>:

Primary Oscillator Configuration bits

= Primary oscillator disabled

= HS Oscillator mode selected

= XT Oscillator mode selected

= External Clock mode selected

PIC24F04KA201 Datasheet(PDF) 167 Page - Microchip Technology

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