if HPE (high priority elevation) is enabled, in which cases the master may raise its priority ??
On this device only FlexRay module is capable to elevate XBAR priority. I am looking for the mechanism.
so, in which scenarios the flexray may send high priority request?
I just obtained an answer from design
Flexray: The flexray’s high priority signal to the platform is tied high. Thus, if the flexray HPE bit is set, then all flexray transactions are considered high priority.
However I just noticed there is also addendum in RM telling that HPE also works with CPU and DMA
I am apologizing I haven't noticed.
This is not clear to us. We have send a question to the design as it seems not to be comprehensively documented. I will return to you as I can.
Could you specify used device?
MPC5744p