Poison Address

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 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.