HD6433937 Datasheet, PDF (91/521 Pages) Hitachi Semiconductor – Hardware Manual

3.3.6 Interrupt Response Time
Table 3-4 shows the number of wait states after an interrupt request flag is set until the first
instruction of the interrupt handler is executed.
Table 3-4 Interrupt Wait States
Item
Waiting time for completion of executing instruction*
Saving of PC and CCR to stack
Vector fetch
Instruction fetch
Internal processing
Note: * Not including EEPMOV instruction.
States
1 to 13
4
2
4
4
Total
15 to 27
79