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6.6.4
Interrupt Response Times
Table 6.10 shows interrupt response times − the intervals between generation of an interrupt
request and execution of the first instruction in the interrupt handling routine.
Table 6.10 Interrupt Response Times
No.
Execution Status
1
Interrupt priority determination*
2
Number of wait states until executing instruction
2
ends*
3
Saving of PC and CCR in stack
4
Vector fetch
5
Instruction fetch*
6
Internal processing*
Total (using on-chip memory)
Notes: 1. Two states in case of internal interrupt.
2. Refers to MULXS and DIVXS instructions.
3. Prefetch after interrupt acceptance and prefetch of interrupt handling routine.
4. Internal processing after interrupt acceptance and internal processing after vector fetch.
1
3
4
Section 6 Interrupt Controller
Advanced Mode
3
1 to 21
2
2
2
2
12 to 32
Rev. 1.00 May 09, 2008 Page 139 of 954
REJ09B0462-0100
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