Datasheet

PIC24FV32KA304 FAMILY
DS30009995E-page 240  2011-2017 Microchip Technology Inc.
REGISTER 26-2: FGS: GENERAL SEGMENT CONFIGURATION REGISTER
REGISTER 26-3: FOSCSEL: OSCILLATOR SELECTION CONFIGURATION REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R/C-1 R/C-1
— — — — — — GSS0 GWRP
bit 7 bit 0
Legend:
R = Readable bit C = Clearable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-2
Unimplemented: Read as ‘0’
bit 1 GSS0: General Segment Code Flash Code Protection bit
1 = No protection
0 = Standard security is enabled
bit 0
GWRP: General Segment Code Flash Write Protection bit
1 = General Segment may be written
0 = General Segment is write-protected
R/P-1 R/P-1 R/P-1 U-0 U-0 R/P-1 R/P-1 R/P-1
IESO LPRCSEL SOSCSRC
— — FNOSC2 FNOSC1 FNOSC0
bit 7 bit 0
Legend:
R = Readable bit P = Programmable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7
IESO: Internal External Switchover bit
1 = Internal External Switchover mode is enabled (Two-Speed Start-up is enabled)
0 = Internal External Switchover mode is disabled (Two-Speed Start-up is disabled)
bit 6
LPRCSEL: Internal LPRC Oscillator Power Select bit
1 = High-Power/High-Accuracy mode
0 = Low-Power/Low-Accuracy mode
bit 5
SOSCSRC: Secondary Oscillator Clock Source Configuration bit
1 = SOSC analog crystal function is available on the SOSCI/SOSCO pins
0 = SOSC crystal is disabled; digital SCLKI function is selected on the SOSCO pin
bit 4-3
Unimplemented: Read as ‘0’
bit 2-0
FNOSC<2:0>: Oscillator Selection bits
000 = Fast RC Oscillator (FRC)
001 = Fast RC Oscillator with Divide-by-N with PLL module (FRCDIV+PLL)
010 = Primary Oscillator (XT, HS, EC)
011 = Primary Oscillator with PLL module (HS+PLL, EC+PLL)
100 = Secondary Oscillator (SOSC)
101 = Low-Power RC Oscillator (LPRC)
110 = 500 kHz Low-Power FRC Oscillator with Divide-by-N (LPFRCDIV)
111 = 8 MHz FRC Oscillator with Divide-by-N (FRCDIV)