DSPIC33FJ16GS102-I/SO 查看數據表（PDF） - Microchip Technology

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DSPIC33FJ16GS102-I/SO

High-Performance, 16-bit Digital Signal Controllers

Microchip Technology 

dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04

21.8 Code Protection and

CodeGuard™ Security

The

dsPIC33FJ06GS101/X02

and

dsPIC33FJ16GSX02/X04 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 a single chip.

TABLE 21-3: CODE FLASH SECURITY

SEGMENT SIZES FOR

6-Kbyte DEVICES

Configuration Bits

BSS<2:0> = x11

0K

VS = 256 IW

GS = 1792 IW

000000h

0001FEh

000200h

0003FEh

000400h

0007FEh

000800h

000FFEh

001000h

002BFEh

BSS<2:0> = x10

256

VS = 256 IW

BS = 256 IW

GS = 1536 IW

000000h

0001FEh

000200h

0003FEh

000400h

0007FEh

000800h

000FFEh

001000h

002BFEh

BSS<2:0> = x01

768

VS = 256 IW

BS = 768 IW

GS = 1024 IW

000000h

0001FEh

000200h

0003FEh

000400h

0007FEh

000800h

000FFEh

001000h

002BFEh

BSS<2:0> = x00

1792

VS = 256 IW

BS = 1792 IW

000000h

0001FEh

000200h

0003FEh

000400h

0007FEh

000800h

000FFEh

001000h

002BFEh

The code protection features are controlled by the

Configuration registers: FBS and FGS.

Secure segment and RAM protection is not implemented

in

dsPIC33FJ06GS101/X02

and

dsPIC33FJ16GSX02/X04 devices.

Note:

Refer to CodeGuard Security Reference

Manual (DS70180) for further information

on usage, configuration and operation of

CodeGuard Security.

TABLE 21-4: CODE FLASH SECURITY

SEGMENT SIZES FOR

16-Kbyte DEVICES

Configuration Bits

BSS<2:0> = x11

0K

VS = 256 IW

GS = 5376 IW

000000h

0001FEh

000200h

0003FEh

000400h

0007FEh

000800h

000FFEh

001000h

002BFEh

BSS<2:0> = x10

256

VS = 256 IW

BS = 256 IW

GS = 5120 IW

000000h

0001FEh

000200h

0003FEh

000400h

0007FEh

000800h

000FFEh

001000h

002BFEh

BSS<2:0> = x01

768

VS = 256 IW

BS = 768 IW

GS = 4608 IW

000000h

0001FEh

000200h

0003FEh

000400h

0007FEh

000800h

000FFEh

001000h

002BFEh

BSS<2:0> = x00

1792

VS = 256 IW

BS = 1792 IW

GS = 3584 IW

000000h

0001FEh

000200h

0003FEh

000400h

0007FEh

000800h

000FFEh

001000h

002BFEh

© 2009 Microchip Technology Inc.

Preliminary

DS70318D-page 269

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