SH7125_08 Datasheet, PDF (132/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 6 Interrupt Controller (INTC)
6.8 Usage Note
The interrupt source flag should be cleared in the interrupt handler. To ensure that an interrupt
source that should have been cleared is not inadvertently accepted again, read the interrupt source
flag after it has been cleared, confirm that it has been cleared, and then execute an RTE
instruction.
Rev. 4.00 Jul. 25, 2008 Page 112 of 750
REJ09B0243-0400