Renesas R8C/25 Manual descargar pdf (Pagina 10)

Rev. 1.1

R8C25 QuickDesign Guide.doc Page 10 of 10 12/23/2007

#pragma INTERRUPT {function declaration} /E

The compiler will automatically re-enable interrupts during the ISR to allow

nested interrupts

• You cannot use /B and /E on the same interrupt declaration (you will not get

an error it just won’t generate the code for those switches)

• The IR bit can be cleared by software but cannot be set by software.

8.5.4. Special Interrupt Usage Notes

• The operation of Timer RD, Synchronous Serial Unit (SSU) and I2C

peripherals is slightly different than described since these vectors have

multiple sources. Please refer to the manual for the exact operation of those

IR bits

• When using the Key Input Interrupts, if any enabled Key Input is held in the

low state it will mask any further interrupts from other keys.

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Renesas R8C/25 Manual Pagina 10