PIC32MX440F256H-80I Datasheet, PDF (527/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
REGISTER 23-1: OSCCON: OSCILLATOR CONTROL REGISTER (CONTINUED)
bit 2
UFRCEN: USB FRC Clock Enable bit
1 = Enable FRC as the clock source for the USB clock source
0 = Use the primary oscillator or USB PLL as the USB clock source
bit 1
SOSCEN: 32.768 kHz Secondary Oscillator (SOSC) Enable bit
1 = Enable Secondary Oscillator
0 = Disable Secondary Oscillator
Note: On Reset these bits are set to the value of the FSOSCEN Configuration bit DEVCFG1<5>
bit 0
OSWEN: Oscillator Switch Enable bit
1 = Initiate an oscillator switch to selection specified by NOSC2:NOSC0 bits
0 = Oscillator switch is complete
© 2008 Microchip Technology Inc.
Preliminary
DS61143E-page 525