PIC24HJ12GP201_11 Datasheet, PDF (168/262 Pages) Microchip Technology – High-Performance, 16-bit Microcontrollers 5-cycle latency

PIC24HJ12GP201/202
TABLE 19-2:
Bit Field
BWRP
BSS<2:0>
PIC24HJ12GP201/202 CONFIGURATION BITS DESCRIPTION
Register
RTSP
Effect
Description
FBS Immediate Boot Segment Program Flash Write Protection
1 = Boot segment may be written
0 = Boot segment is write-protected
FBS Immediate Boot Segment Program Flash Code Protection Size
X11 = No Boot program Flash segment
Boot space is 256 Instruction Words (except interrupt vectors)
110 = Standard security; boot program Flash segment ends at 0x0003FE
010 = High security; boot program Flash segment ends at 0x0003FE
Boot space is 768 Instruction Words (except interrupt vectors)
101 = Standard security; boot program Flash segment, ends at 0x0007FE
001 = High security; boot program Flash segment ends at 0x0007FE
Boot space is 1792 Instruction Words (except interrupt vectors)
100 = Standard security; boot program Flash segment ends at 0x000FFE
000 = High security; boot program Flash segment ends at 0x000FFE
GSS<1:0>
FGS
Immediate General Segment Code-Protect bit
11 = User program memory is not code-protected
10 = Standard security
0x = High security
GWRP
FGS
Immediate General Segment Write-Protect bit
1 = User program memory is not write-protected
0 = User program memory is write-protected
IESO
FOSCSEL Immediate Two-speed Oscillator Start-up Enable bit
1 = Start-up device with FRC, then automatically switch to the
user-selected oscillator source when ready
0 = Start-up device with user-selected oscillator source
FNOSC<2:0>
FOSCSEL If clock Initial Oscillator Source Selection bits
switch is 111 = Internal Fast RC (FRC) oscillator with postscaler
enabled, 110 = Internal Fast RC (FRC) oscillator with divide-by-16
RTSP 101 = LPRC oscillator
effect is 100 = Secondary (LP) oscillator
on any 011 = Primary (XT, HS, EC) oscillator with PLL
device 010 = Primary (XT, HS, EC) oscillator
Reset; 001 = Internal Fast RC (FRC) oscillator with PLL
otherwise, 000 = FRC oscillator
Immediate
FCKSM<1:0>
FOSC
Immediate Clock Switching Mode 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
IOL1WAY
FOSC
Immediate Peripheral Pin Select Configuration
1 = Allow only one reconfiguration
0 = Allow multiple reconfigurations
OSCIOFNC
FOSC
Immediate OSC2 Pin Function bit (except in XT and HS modes)
1 = OSC2 is clock output
0 = OSC2 is general purpose digital I/O pin
POSCMD<1:0>
FOSC
Immediate Primary Oscillator Mode Select bits
11 = Primary oscillator disabled
10 = HS Crystal Oscillator mode
01 = XT Crystal Oscillator mode
00 = EC (External Clock) mode
DS70282E-page 168
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