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AVR32AP Datasheet(PDF) 39 Page - ATMEL Corporation |
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AVR32AP Datasheet(HTML) 39 Page - ATMEL Corporation |
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39 / 181 page ![]() 39 32001A–AVR32–06/06 AVR32 Since the INT0 exception is unrelated to the instruction stream, the instructions in the pipeline are allowed to complete. After finishing the INT0 exception routine, execution should continue at the instruction following the last completed instruction in the instruction stream. RSR_INT0 = SR; RAR_INT0 = Address of first noncompleted instruction; SR[R] = 0; SR[J] = 0; SR[M2:M0] = B’010; SR[I0M] = 1; PC = EVBA | INTERRUPT_VECTOR_OFFSET; 3.11.1.12 Instruction Address Exception The Instruction Address Error exception is generated if the generated instruction memory address has an illegal alignment. RSR_EX = SR; RAR_EX = PC; TLBEAR = FAILING_VIRTUAL_ADDRESS; TLBEHI[VPN] = FAILING_PAGE_NUMBER; SR[R] = 0; SR[J] = 0; SR[M2:M0] = B’110; SR[EM] = 1; SR[GM] = 1; PC = EVBA | 0x14; 3.11.1.13 ITLB Miss Exception The ITLB Miss exception is generated when no TLB entry matches the instruction memory address, or if the Valid bit in a matching entry is 0. RSR_EX = SR; RAR_EX = PC; TLBEAR = FAILING_VIRTUAL_ADDRESS; TLBEHI[VPN] = FAILING_PAGE_NUMBER; TLBEHI[I] = 1; SR[R] = 0; SR[J] = 0; SR[M2:M0] = B’110; SR[EM] = 1; SR[GM] = 1; PC = EVBA | 0x50; |
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