Gadgets are necessary to observe a protocol so the interrupt-ask for (IRQ) strains is often shared. The PCI bus contains 4 interrupt lines, INTA# via INTD#, all of which can be obtained to every product. Up to eight PCI units share exactly the same IRQ line (INTINA# via INTINH#) in https://nathanlabsadvisory.com/cyber-security-assessment/