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DSPIC33EP64GS708 数据表(PDF) 112 Page - Microchip Technology |
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DSPIC33EP64GS708 数据表(HTML) 112 Page - Microchip Technology |
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112 / 484 page ![]() dsPIC33EPXXXGS70X/80X FAMILY DS70005258C-page 112 2016-2018 Microchip Technology Inc. bit 4-0 PLLPRE<4:0>: PLL Phase Detector Input Divider Select bits (also denoted as ‘N1’, PLL prescaler) 11111 = Input divided by 33 • • • 00001 = Input divided by 3 00000 = Input divided by 2 (default) REGISTER 9-2: CLKDIV: CLOCK DIVISOR REGISTER (CONTINUED) Note 1: The DOZE<2:0> bits can only be written to when the DOZEN bit is clear. If DOZEN = 1, any writes to DOZE<2:0> are ignored. 2: This bit is cleared when the ROI bit is set and an interrupt occurs. 3: The DOZEN bit cannot be set if DOZE<2:0> = 000. If DOZE<2:0> = 000, any attempt by user software to set the DOZEN bit is ignored. REGISTER 9-3: PLLFBD: PLL FEEDBACK DIVISOR REGISTER U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 — — — — — — — PLLDIV8 bit 15 bit 8 R/W-0 R/W-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0 PLLDIV<7:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 15-9 Unimplemented: Read as ‘0’ bit 8-0 PLLDIV<8:0>: PLL Feedback Divisor bits (also denoted as ‘M’, PLL multiplier) 111111111 = 513 • • • 000110000 = 50 (default) • • • 000000010 = 4 000000001 = 3 000000000 = 2 |
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