HD64F3670 Datasheet, PDF (75/323 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

3.4.4 Interrupt Response Time
Table 3.2 shows the number of wait states after an interrupt request flag is set until the first
instruction of the interrupt handling-routine is executed.
Table 3.2 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
Rev. 2.0, 03/02, page 51 of 298