DSPIC33FJ128GP802-I Datasheet, PDF (146/403 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 9-1: OSCCON: OSCILLATOR CONTROL REGISTER⁽¹⁾ (CONTINUED)
bit 2
Unimplemented: Read as ‘0’
bit 1
LPOSCEN: Secondary (LP) Oscillator Enable bit
1 = Enable secondary oscillator
0 = Disable secondary oscillator
bit 0
OSWEN: Oscillator Switch Enable bit
1 = Request oscillator switch to selection specified by NOSC<2:0> bits
0 = Oscillator switch is complete
Note 1: Writes to this register require an unlock sequence. Refer to Section 39. “Oscillator (Part III)” (DS70216)
in the “dsPIC33F/PIC24H Family Reference Manual” (available from the Microchip website) for details.
2: Direct clock switches between any primary oscillator mode with PLL and FRCPLL mode are not permitted.
This applies to clock switches in either direction. In these instances, the application must switch to FRC mode
as a transition clock source between the two PLL modes.
DS70292D-page 146
Preliminary
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