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AVR32AP Scheda tecnica(PDF) 43 Page - ATMEL Corporation

Il numero della parte AVR32AP
Spiegazioni elettronici  32-bit AVR Microcontroller
PDF  181 Pages
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Produttore elettronici  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AVR32AP Scheda tecnica(HTML) 43 Page - ATMEL Corporation

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32001A–AVR32–06/06
AVR32
3.11.1.23
DTLB Write Protection Exception
The DTLB Protection exception is generated when the data memory write violates the access
rights specified by the protection bits of the addressed virtual page.
RSR_EX = SR;
RAR_EX = PC;
TLBEAR = FAILING_VIRTUAL_ADDRESS;
TLBEHI[VPN] = FAILING_PAGE_NUMBER;
TLBEHI[I] = 0;
SR[R] = 0;
SR[J] = 0;
SR[M2:M0] = B’110;
SR[EM] = 1;
SR[GM] = 1;
PC = EVBA | 0x40;
3.11.1.24
Privilege Violation Exception
If the application tries to execute privileged instructions, this exception is issued. The complete
list of priveleged instructions is shown in Table 3-3. When entering the exception routine, the
address of the instruction that caused the exception is stored as yhe stacked return address.
RSR_EX = SR;
RAR_EX = PC;
SR[R] = 0;
SR[J] = 0;
SR[M2:M0] = B’110;
SR[EM] = 1;
SR[GM] = 1;
PC = EVBA | 0x28;



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