Poison Address

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

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2.4 English

An AXI request can be poisoned by changing the address to a preprogrammed poison address. A 4 KB poisoned address aperture is defined as an AXI slave, which is an XMPU sink. The interconnect routes the 4 KB poisoned address to this sink, which responds to poisoned transactions similar to an undefined register space. This results in either a data abort or an interrupt to the processor.