DSPIC33FJ12MC202 Microchip Technology Inc., DSPIC33FJ12MC202 Datasheet - Page 214

• Manufacturer Part Number: DSPIC33FJ12MC202
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

dsPIC33FJ12MC201/202
TABLE 20-2:
DS70265B-page 212
FNOSC<2:0>
FCKSM<1:0>
OSCIOFNC
GSS<1:0>
BSS<2:0>
IOL1WAY
Bit Field
GWRP
BWRP
IESO
DSPIC33F CONFIGURATION BITS DESCRIPTION
FOSCSEL
FOSCSEL
Register
FOSC
FOSC
FOSC
FGS
FGS
FBS
FBS
Boot Segment Program Flash Write Protection
1 = Boot segment can be written
0 = Boot segment is write-protected
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
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
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
000 = High security; boot program Flash segment ends at 0x000FFE
General Segment Code-Protect bit
11 = User program memory is not code-protected
10 = Standard security
0x = High security
General Segment Write-Protect bit
1 = User program memory is not write-protected
0 = User program memory is write-protected
1 = Start-up device with FRC, then automatically switch to the
0 = Start-up device with user-selected oscillator source
111 = Internal Fast RC (FRC) oscillator with postscaler
110 = Internal Fast RC (FRC) oscillator with divide-by-16
101 = LPRC oscillator
100 = Secondary (LP) oscillator
011 = Primary (XT, HS, EC) oscillator with PLL
010 = Primary (XT, HS, EC) oscillator
001 = Internal Fast RC (FRC) oscillator with PLL
000 = FRC oscillator
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
Peripheral pin select configuration
1 = Allow only one reconfiguration
0 = Allow multiple reconfigurations
OSC2 Pin Function bit (except in XT and HS modes)
1 = OSC2 is clock output
0 = OSC2 is general purpose digital I/O pin
Two-speed Oscillator Start-up Enable bit
Initial Oscillator Source Selection bits
Preliminary
user-selected oscillator source when ready
0x0003FE
0x0007FE
0x000FFE
Description
© 2007 Microchip Technology Inc.