Have a great day,
When the P4080 interrupt controller in the mixed mode you can configure IRQ0 input as level sensitive and disable interrupt from it in the MPIC_EIVPR0 (external interrupt vector/priority register for IRQ0). The level on the IRQ0 input can be read from the MPIC_ERQSR[0] (the msb bit of external interrupt summary register). It is supposed that you wrote your own software for the P4080DS.
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