dspic33fj16gs404t-i-pt Microchip Technology Inc., dspic33fj16gs404t-i-pt Datasheet - Page 271

• Manufacturer Part Number: dspic33fj16gs404t-i-pt
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

21.8
The
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:
© 2009 Microchip Technology Inc.
Configuration Bits
BSS<2:0> = x11
BSS<2:0> = x10
BSS<2:0> = x01
BSS<2:0> = x00
1792
256
768
0K
Code Protection and
CodeGuard™ Security
dsPIC33FJ06GS101/X02
dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04
CODE FLASH SECURITY
SEGMENT SIZES FOR
6-Kbyte DEVICES
GS = 1536 IW
GS = 1024 IW
GS = 1792 IW
BS = 1792 IW
VS = 256 IW
VS = 256 IW
BS = 256 IW
VS = 256 IW
BS = 768 IW
VS = 256 IW
000000h
0001FEh
000200h
0003FEh
000400h
0007FEh
000800h
000FFEh
001000h
002BFEh
000000h
0001FEh
000200h
0003FEh
000400h
0007FEh
000800h
000FFEh
001000h
002BFEh
000000h
0001FEh
000200h
0003FEh
000400h
0007FEh
000800h
000FFEh
001000h
002BFEh
000000h
0001FEh
000200h
0003FEh
000400h
0007FEh
000800h
000FFEh
001000h
002BFEh
and
Preliminary
The code protection features are controlled by the
Configuration registers: FBS and FGS.
Secure segment and RAM protection is not implemented
in
dsPIC33FJ16GSX02/X04 devices.
TABLE 21-4:
Configuration Bits
Note:
BSS<2:0> = x11
BSS<2:0> = x10
BSS<2:0> = x01
BSS<2:0> = x00
1792
256
768
0K
Refer to CodeGuard Security Reference
Manual (DS70180) for further information
on usage, configuration and operation of
CodeGuard Security.
dsPIC33FJ06GS101/X02
CODE FLASH SECURITY
SEGMENT SIZES FOR
16-Kbyte DEVICES
GS = 5376 IW
GS = 5120 IW
GS = 4608 IW
GS = 3584 IW
BS = 1792 IW
VS = 256 IW
VS = 256 IW
BS = 256 IW
VS = 256 IW
BS = 768 IW
VS = 256 IW
DS70318D-page 269
000000h
0001FEh
000200h
0003FEh
000400h
0007FEh
000800h
000FFEh
001000h
002BFEh
000000h
0001FEh
000200h
0003FEh
000400h
0007FEh
000800h
000FFEh
001000h
002BFEh
000000h
0001FEh
000200h
0003FEh
000400h
0007FEh
000800h
000FFEh
001000h
002BFEh
000000h
0001FEh
000200h
0003FEh
000400h
0007FEh
000800h
000FFEh
001000h
002BFEh
and