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DSPIC33EP64GS708 数据表(PDF) 106 Page - Microchip Technology

部件名 DSPIC33EP64GS708
功能描述  16-Bit Digital Signal Controllers for Digital Power Applications with Interconnected High-Speed PWM, ADC, PGA and Comparators
PDF  484 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

DSPIC33EP64GS708 数据表(HTML) 106 Page - Microchip Technology

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dsPIC33EPXXXGS70X/80X FAMILY
DS70005258C-page 106
 2016-2018 Microchip Technology Inc.
FIGURE 9-1:
OSCILLATOR SYSTEM DIAGRAM
XTPLL, HSPLL,
XT, HS, EC
FRCDIV<2:0>
WDT, PWRT,
FRCDIVN
FRCDIV16
ECPLL, FRCPLL
NOSC<2:0>
FNOSC<2:0>
Reset
LPRC
Oscillator
DOZE<2:0>
S3
S1
S2
S1/S3
S7
S6
FRC
LPRC
S0
S5
Clock Switch
S0
Clock Fail
÷ 2
TUN<5:0>
PLL
FCY(2)
FOSC
Note 1:
See Figure 9-2 for the source of the FVCO signal.
2:
FP refers to the clock source for all the peripherals, while FCY (or MIPS) refers to the clock source for the CPU.
Throughout this document, FCY and FP are used interchangeably, except in the case of Doze mode. FP and FCY
will be different when Doze mode is used in any ratio other than 1:1.
3:
The auxiliary clock postscaler must be configured to divide-by-1 (APSTSCLR<2:0> = 111) for proper operation
of the PWM and ADC modules.
FSCM
ACLK
POSCCLK
SELACLK
FVCO(1)
ASRCSEL
ENAPLL
APLL x 16
POSCCLK
FRCCLK
FVCO(1)
÷ N
APSTSCLR<2:0>(4)
FRCCLK
FRCSEL
OSC2
OSC1
Primary Oscillator (POSC)
POSCMD<1:0>
FP(2)
AUXILIARY CLOCK GENERATOR CIRCUIT BLOCK DIAGRAM
1
0
1
0
1
0
0
1
GND
PWM/ADC
REFERENCE CLOCK OUTPUT
POSCCLK
ROSEL
FOSC
÷ N
RPn
REFCLKO
RODIV<3:0>
to LFSR
÷ 16
FPLLO
FRC
Oscillator



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