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AT90SCR100 데이터시트(PDF) 378 Page - ATMEL Corporation

부품명 AT90SCR100
상세설명  8-bit Microcontroller for Smart Card Readers
PDF  433 Pages
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90SCR100 데이터시트(HTML) 378 Page - ATMEL Corporation

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378
TPR0327AY–SMS–30Jan09
AT90SCR100
Notes: 1. Program the Fuse bits and Boot Lock bits before programming the LB1 and LB2.
Table 29-2.
Lock Bit Protection Modes(1)
Memory Lock Bits
Protection Type
LB Mode
LB2
LB1
1
1
1
No memory lock features enabled.
21
0
Further programming of the Flash and EEPROM is disabled in
Serial Programming mode. The Fuse bits are locked in Serial
Programming mode.
30
0
Further programming and verification of the Flash and EEPROM
is disabled in Serial Programming mode. The Boot Lock bits and
Fuse bits are locked in both Serial Programming mode.
BLB0 Mode
BLB02
BLB01
11
1
No restrictions for SPM or (E)LPM accessing the Application
section.
2
1
0
SPM is not allowed to write to the Application section.
30
0
SPM is not allowed to write to the Application section, and
(E)LPM executing from the Boot Loader section is not allowed to
read from the Application section. If Interrupt Vectors are placed
in the Boot Loader section, interrupts are disabled while
executing from the Application section.
40
1
(E)LPM executing from the Boot Loader section is not allowed to
read from the Application section. If Interrupt Vectors are placed
in the Boot Loader section, interrupts are disabled while
executing from the Application section.
BLB1 Mode
BLB12
BLB11
11
1
No restrictions for SPM or (E)LPM accessing the Boot Loader
section.
2
1
0
SPM is not allowed to write to the Boot Loader section.
30
0
SPM is not allowed to write to the Boot Loader section, and
(E)LPM executing from the Application section is not allowed to
read from the Boot Loader section. If Interrupt Vectors are
placed in the Application section, interrupts are disabled while
executing from the Boot Loader section.
40
1
(E)LPM executing from the Application section is not allowed to
read from the Boot Loader section. If Interrupt Vectors are
placed in the Application section, interrupts are disabled while
executing from the Boot Loader section.



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