APU-specific GIC Features

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

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2.4 English

The APU GIC includes most of the same features as in the RPU GIC with the addition of security and virtualization:

GICv2 programming model.

Security extensions.

Virtualization extensions.

Interrupt groups:

°Group 0 interrupts cause either IRQ or IFQ signaling.

°Group 1 interrupts use IRQ signaling.

°Unified scheme to handle priority.

°Optional register lockdown on some group 0 interrupts.

CPU private registers have restricted accessed on the AXI interconnect.