Microchip Technology MA240017 Data Sheet
PIC24F16KA102 FAMILY
DS39927C-page 194
2008-2011 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
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
U-0
U-0
U-0
U-0
R/P-1
R/P-1
R/P-1
IESO
—
—
—
—
FNOSC2
FNOSC1
FNOSC0
bit 7
bit 0
Legend:
R = Readable bit
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 6-3
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)