PIC24H Microchip Technology, PIC24H Datasheet - Page 42
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PIC24H
Manufacturer Part Number
PIC24H
Description
Flash Programming Specification
Manufacturer
Microchip Technology
Datasheet
1.PIC24H.pdf
(80 pages)
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dsPIC33F/PIC24H PROGRAMMING SPECIFICATION
TABLE 3-3:
DS70152D-page 42
RSS<1:0>
SSS<2:0>
Bit Field
SWRP
dsPIC33F/PIC24H CONFIGURATION BITS DESCRIPTION (CONTINUED)
Register
FSS
FSS
FSS
Secure Segment Data RAM Code Protection
11 = No Data RAM is reserved for Secure Segment
10 = Small-sized Secure RAM
[(256 – N) bytes of RAM are reserved for Secure Segment in all other
devices.]
01 = Medium-sized Secure RAM
[(2048 – N) bytes of RAM are reserved for Secure Segment in all other
devices.]
00 = Large-sized Secure RAM
[(4096 – N) bytes of RAM are reserved for Secure Segment in all other
devices.]
where N = Number of bytes of RAM reserved for Boot Sector.
Secure Segment Program Memory Code Protection
111 = No Secure Segment
110 = Standard security, Small-sized Secure Program Flash
[Secure Segment ends at 0x001FFF for dsPIC33FJ64GPxxx/
dsPIC33FJ64MCxxx/PIC24HJ64GPxxx devices, and at 0x003FFF in
other devices.]
101 = Standard security, Medium-sized Secure Program Flash
[Secure Segment ends at 0x003FFF for dsPIC33FJ64GPxxx/
dsPIC33FJ64MCxxx/PIC24HJ64GPxxx devices, and at 0x007FFF in
other devices.]
100 = Standard security, Large-sized Secure Program Flash
[Secure Segment ends at 0x007FFF for dsPIC33FJ64GPxxx/
dsPIC33FJ64MCxxx/PIC24HJ64GPxxx devices, and at 0x00FFFF in
other devices.]
011 = No Secure Segment
010 = High security, Small-sized Secure Program Flash
[Secure Segment ends at 0x001FFF for dsPIC33FJ64GPxxx/
dsPIC33FJ64MCxxx/PIC24HJ64GPxxx devices, and at 0x003FFF in
other devices.]
001 = High security, Medium-sized Secure Program Flash
[Secure Segment ends at 0x003FFF for dsPIC33FJ64GPxxx/
dsPIC33FJ64MCxxx/PIC24HJ64GPxxx devices, and at 0x007FFF in
other devices.]
000 = High security, Large-sized Secure Program Flash
[Secure Segment ends at 0x007FFF for dsPIC33FJ64GPxxx/
dsPIC33FJ64MCxxx/PIC24HJ64GPxxx devices, and at 0x00FFFF in
other devices.]
[Note: This bit is Reserved in dsPIC33FJ12GP201/202,
dsPIC33FJ12MC201/202 and PIC24HJ12GP201/202.]
Secure Segment Program Memory Write Protection
1 = Secure Segment program memory is not write-protected
0 = Secure program memory is write-protected
[Note: This bit is Reserved in dsPIC33FJ12GP201/202,
dsPIC33FJ12MC201/202 and PIC24HJ12GP201/202.]
Note 1: This
Preliminary
2: If the defined Boot Segment size is greater than or equal to
dsPIC33FJ12MC201/202 and PIC24HJ12GP201/202.]
the defined Secure Segment, then the Secure Segment size
selection has no effect and the Secure Segment is disabled.
bit
is
Reserved
Description
in
© 2007 Microchip Technology Inc.
dsPIC33FJ12GP201/202,
www.DataSheet4U.com