AVR32AP datasheet(39/181 Pages) ATMEL

39 / 181 page

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;

AVR32AP 数据表(PDF) 39 Page - ATMEL Corporation

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