PIC32MX1XX_12 Datasheet, PDF (100/328 Pages) Microchip Technology – 32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog

PIC32MX1XX/2XX
REGISTER 8-3: REFOCON: REFERENCE OSCILLATOR CONTROL REGISTER
bit 3-0 ROSEL<3:0>: Reference Clock Source Select bits⁽¹⁾
1111 = Reserved; do not use
•
•
•
1001 = Reserved; do not use
1000 = REFCLKI
0111 = System PLL output
0110 = USB PLL output
0101 = SOSC
0100 = LPRC
0011 = FRC
0010 = POSC
0001 = PBCLK
0000 = SYSCLK
Note 1:
2:
3:
The ROSEL and RODIV bits should not be written while the ACTIVE bit is ‘1’, as undefined behavior may
result.
This bit is ignored when the ROSEL<3:0> bits = 0000 or 0001.
While the ON bit is set to ‘1’, writes to these bits do not take effect until the DIVSWEN bit is also set to ’1’.
DS61168E-page 100
Preliminary
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