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DSPIC33FJMC202ESS Datasheet(PDF) 218 Page - Microchip Technology |
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DSPIC33FJMC202ESS Datasheet(HTML) 218 Page - Microchip Technology |
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218 / 330 page  dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304 DS70283K-page 218 © 2007-2012 Microchip Technology Inc. 21.8 Code Protection and CodeGuard™ Security The dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304 devices offer the intermediate implementation of CodeGuard™ Security. CodeGuard Security enables multiple parties to securely share resources (memory, interrupts and peripherals) on a single chip. This feature helps protect individual Intellectual Property in collaborative system designs. When coupled with software encryption libraries, Code- Guard™ Security can be used to securely update Flash even when multiple IPs reside on the single chip. The code protection features are controlled by the Configuration registers: FBS and FGS. Secure segment and RAM protection is not implemented in dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304 devices. TABLE 21-3: CODE FLASH SECURITY SEGMENT SIZES FOR 32 KBYTE DEVICES TABLE 21-4: CODE FLASH SECURITY SEGMENT SIZES FOR 16 KBYTE DEVICES Note: Refer to Section 23. “CodeGuard™ Security” (DS70199) in the “dsPIC33F/PIC24H Family Reference Manual” for further information on usage, configuration and operation of CodeGuard Security. CONFIG BITS BSS<2:0>=x11 0K BSS<2:0>=x10 256 BSS<2:0>=x01 768 BSS<2:0>=x00 1792 0x0057FE 0x0001FE 0x000200 0x000000 VS = 256 IW 0x0007FE 0x000800 0x001FFE 0x002000 GS = 11008 IW 0x003FFE 0x004000 0x0057FE 0x0001FE 0x000200 0x000000 VS = 256 IW 0x0007FE 0x000800 0x001FFE 0x002000 0x003FFE 0x004000 GS = 10240 IW BS = 768 IW 0x0057FE 0x0001FE 0x000200 0x000000 VS = 256 IW 0x0007FE 0x000800 0x001FFE 0x002000 0x003FFE 0x004000 GS = 7168 IW BS = 3840 IW 0x0057FE 0x0001FE 0x000200 0x000000 VS = 256 IW 0x0007FE 0x000800 0x001FFE 0x002000 GS = 3072 IW 0x003FFE 0x004000 BS = 7936 IW CONFIG BITS BSS<2:0>=x11 0K BSS<2:0>=x10 256 BSS<2:0>=x01 768 BSS<2:0>=x00 1792 0x002BFE 0x0001FE 0x000200 0x000000 VS = 256 IW 0x0007FE 0x000800 0x001FFE 0x002000 GS = 5376 IW 0x002BFE 0x0001FE 0x000200 0x000000 VS = 256 IW 0x0007FE 0x000800 0x001FFE 0x002000 GS = 4608 IW BS = 768 IW 0x002BFE 0x0001FE 0x000200 0x000000 VS = 256 IW 0x0007FE 0x000800 0x001FFE 0x002000 GS = 1536 IW BS = 3840 IW 0x002BFE 0x0001FE 0x000200 0x000000 VS = 256 IW 0x0007FE 0x000800 0x001FFE 0x002000 BS = 5376 IW |
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