UNO-3074 User Manual 202.5.6 Interrupt Enable Control FunctionThe user can choose to enable or disable the interrupt function by writingits corresponding value to the interrupt disable/enable control bit in theinterrupt control register, as shown in Table 2.6.2.5.7 Interrupt Triggering Edge ControlThe interrupt can be triggered by a rising edge or a falling edge of theinterrupt signal, as determined by the value in the interrupt triggering edgecontrol bit in the interrupt control register, as shown in Table 2.7.2.5.8 Interrupt Flag BitThe interrupt flag bit is a flag indicating the status of an interrupt. It is areadable/writable bit. To find the status of the interrupt, you have to readthe bit value. To clear the interrupt, you have to write “1” to this bit. Thisbit must first be cleared to service the next coming interrupt.Table 2.6: Interrupt Disable/Enable ControlDI0EN & DI1EN Interrupt Disable/Enable Control0 Disable1 EnableTable 2.7: Interrupt Triggering Edge ControlDI0TE & DI1TE Triggering edge of interrupt signal0 Falling edge trigger1 Rising edge triggerTable 2.8: Interrupt Flag Bit ValuesDI0F & DI1F Interrupt StatusRead 0 No interrupt1 Interrupt occurWrite 0 Don’t care1 Clear interrupt
