Datasheet

External Interrupt (IRQ)
IRQ Status and Control Register
MC68HC908GR8 — Rev 4.0 Technical Data
MOTOROLA External Interrupt (IRQ) 173
MODE — IRQ Edge/Level Select Bit
This read/write bit controls the triggering sensitivity of the IRQ1 pin.
Reset clears MODE.
1 = IRQ1 interrupt requests on falling edges and low levels
0 = IRQ1 interrupt requests on falling edges only
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