Microchip Technology MA330019 데이터 시트

DS70291G-page  336

© 2007-2012 Microchip Technology Inc.

BWRP

FBS

Immediate

Boot Segment Program Flash Write Protection
1 = Boot segment can be written
0 = Boot segment is write-protected

BSS<2:0>

FBS

Immediately Boot Segment Program Flash Code Protection Size

X11 = No Boot program Flash segment

Boot space is 1K Instruction Words (except interrupt vectors)
110 = Standard security; boot program Flash segment ends at 

0x0007FE

010 = High security; boot program Flash segment ends at 0x0007FE

Boot space is 4K Instruction Words (except interrupt vectors)
101 = Standard security; boot program Flash segment, ends at 

0x001FFE

001 = High security; boot program Flash segment ends at 0x001FFE

Boot space is 8K Instruction Words (except interrupt vectors)
100 = Standard security; boot program Flash segment ends at 

0x003FFE

000 = High security; boot program Flash segment ends at 0x003FFE

RBS<1:0>

FBS

Immediate

Boot Segment RAM Code Protection Size
11 = No Boot RAM defined
10 = Boot RAM is 128 bytes
01 = Boot RAM is 256 bytes
00 = Boot RAM is 1024 bytes

SWRP

FSS

Immediate

Secure Segment Program Flash Write-Protect bit
1 = Secure Segment can bet written
0 = Secure Segment is write-protected

SSS<2:0>

FSS

Immediate

Secure Segment Program Flash Code Protection Size 
(Secure segment is not implemented on 32K devices)
X11 = No Secure program flash segment

Secure space is 4K IW less BS
110 = Standard security; secure program Flash segment starts at End 

of BS, ends at 0x001FFE

010 = High security; secure program Flash segment starts at End of 

BS, ends at 0x001FFE

Secure space is 8K IW less BS
101 = Standard security; secure program Flash segment starts at End 

of BS, ends at 0x003FFE

001 = High security; secure program Flash segment starts at End of 

BS, ends at 0x003FFE

Secure space is 16K IW less BS
100 = Standard security; secure program Flash segment starts at End 

of BS, ends at 007FFEh

000 = High security; secure program Flash segment starts at End of 

BS, ends at 0x007FFE

RSS<1:0>

FSS

Immediate

Secure Segment RAM Code Protection
11 = No Secure RAM defined
10 = Secure RAM is 256 Bytes less BS RAM
01 = Secure RAM is 2048 Bytes less BS RAM
00 = Secure RAM is 4096 Bytes less BS RAM

Note 1: This Configuration register is not available on dsPIC33FJ32MC302/304 devices.