Datasheet

Table Of Contents
dsPIC30F6011A/6012A/6013A/6014A
DS70143E-page 152 © 2011 Microchip Technology Inc.
REGISTER 20-3: FOSC: OSCILLATOR CONFIGURATION REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
bit 23 bit 16
R/P R/P U-0 U-0 U-0 R/P R/P R/P
FCKSM<1:0>
—FOS<2:0>
bit 15 bit 8
U-0 U-0 U-0 R/P R/P R/P R/P R/P
—FPR<4:0>
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 23-16 Unimplemented: Read as ‘0
bit 15-14 FCKSM<1:0>: Clock Switching and Monitor Selection Configuration bits
1x = Clock switching is disabled, fail safe clock monitor is disabled
01 = Clock switching is enabled, fail safe clock monitor is disabled
00 = Clock switching is enabled, fail safe clock monitor is enabled
bit 13-11 Unimplemented: Read as ‘0
bit 10-8 FOS<2:0>: Oscillator Group Selection on POR bits
111 = PLL Oscillator; PLL source selected by FPR<4:0> bits, see Table 20-2.
011 = EXT: External Oscillator; OSC1/OSC2 pins; External Oscillator configuration selected by
FPR<4:0> bits
010 = LPRC: Internal Low Power RC
001 = FRC: Internal Fast RC
000 = LPOSC: Low Power Crystal Oscillator; SOSCI/SOSCO pins
bit 7-5 Unimplemented: Read as ‘0
bit 4-0 FPR<4:0>: Oscillator Selection within Primary Group bits, see Table 20-2.