PIC32MX795F512LT-80ISLASHPF datasheet(169/256 Pages) MICROCHIP

169 / 256 page

DS61156G-page 169

PIC32MX5XX/6XX/7XX

bit 13-12 FPBDIV<1:0>: Peripheral Bus Clock Divisor Default Value bits

11 = PBCLK is SYSCLK divided by 8

10 = PBCLK is SYSCLK divided by 4

01 = PBCLK is SYSCLK divided by 2

00 = PBCLK is SYSCLK divided by 1

bit 11

Reserved:

Write ‘1’

bit 10

OSCIOFNC:

CLKO Enable Configuration bit

1 = CLKO output disabled

0 = 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 (POSCMOD<1:0> = 11 or 00)

bit 9-8

POSCMOD<1:0>:

Primary Oscillator Configuration bits

11 = Primary Oscillator disabled

10 = HS Oscillator mode selected

01 = XT Oscillator mode selected

00 = External Clock mode selected

bit 7

IESO:

Internal External Switchover bit

1 = Internal External Switchover mode is enabled (Two-Speed Start-up is enabled)

0 = Internal External Switchover mode is disabled (Two-Speed Start-up is disabled)

bit 6

Reserved:

Write ‘1’

bit 5

FSOSCEN:

Secondary Oscillator Enable bit

1 = Enable Secondary Oscillator

0 = Disable Secondary Oscillator

bit 4-3

Reserved:

Write ‘1’

bit 2-0

FNOSC<2:0>:

Oscillator Selection bits

111 = Fast RC Oscillator with divide-by-N (FRCDIV)

110 = FRCDIV16 Fast RC Oscillator with fixed divide-by-16 postscaler

101 = Low-Power RC Oscillator (LPRC)

100 = Secondary Oscillator (SOSC)

011 = Primary Oscillator (POSC) with PLL module (XT+PLL, HS+PLL, EC+PLL)

010 = Primary Oscillator (XT, HS, EC)(1)

001 = Fast RC Oscillator with divide-by-N with PLL module (FRCDIV+PLL)

000 = Fast RC Oscillator (FRC)

DEVCFG1: DEVICE CONFIGURATION WORD 1 (CONTINUED)

Note 1:

Do not disable the POSC (POSCMOD = 11) when using this oscillator source.

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