DSPIC33FJ32GS608 datasheet(188/416 Pages) MICROCHIP

188 / 416 page

dsPIC33FJ32GS406/606/608/610 and dsPIC33FJ64GS406/606/608/610

DS70591B-page 188

Preliminary

 2009 Microchip Technology Inc.

FIGURE 9-1:

dsPIC33FJ32GS406/606/608/610 and dsPIC33FJ64GS406/606/608/610

OSCILLATOR SYSTEM DIAGRAM

÷N

ACLK

SELACLK

APSTSCLR<2:0>

To PWM/ADC

ENAPLL

APLL

x16

ASRCSEL

FRCSEL

POSCCLK

FRCCLK

÷N

ROSEL

RODIV<3:0>

REFCLKO(3)

POSCCLK

Reference Clock Generation

Auxiliary Clock Generation

Note 1:

See Figure 9-2 for PLL details.

If the Oscillator is used with XT or HS modes, an external parallel resistor with the value of 1 M

 must be connected.

REFCLKO functionality is not available if the Primary Oscillator is used.

FVCO(1)

FOSC

Secondary Oscillator (SOSC)

LPOSCEN

SOSCO

SOSCI

Timer 1

OSC2

OSC1

Primary Oscillator (POSC)

XTPLL, HSPLL,

XT, HS, EC

FRCDIV<2:0>

WDT, PWRT,

FSCM

FRCDIVN

SOSC

FRCDIV16

ECPLL, FRCPLL

NOSC<2:0> FNOSC<2:0>

Reset

FRC

Oscillator

LPRC

Oscillator

DOZE<2:0>

S1/S3

FRC

LPRC

÷16

Clock Switch

Clock Fail

÷ 2

TUN<5:0>

PLL(1)

FCY

FOSC

FVCO(1)

To ADC and

Auxiliary Clock

Generator

R(2)

POSCMD<1:0>

POSCCLK

dsPIC33FJ32GS608 Datasheet(PDF) 188 Page - Microchip Technology

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