Category: Quartus® Prime (Platform Designer)
Tools: Quartus® Prime
device:-


The behavior is undefined if you access an undefined address.
However, as an actual behavior, access occurs to the module with the lowest address connected to the corresponding master.
Also, by using the default slave function, any peripheral can be specified as the transfer destination when an undefined address is accessed.

Reference information
Quartus® Prime Standard Edition Handbook Volume 1: Design and Synthesis
https://www.altera.com/en_US/pdfs/literature/hb/qts/qts-qps-handbook.pdf
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