Event Streams

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

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2.4 English

The system counter can be used to generate one or more event streams to generate periodic wake-up events. An event stream might be used for these reasons.

To impose a timeout on a wait-for-event polling loop.

To safeguard against any programming error that means an expected event is not generated.

An event stream is configured by these selections.

Selecting which bit from the bottom 32-bits of a counter triggers the event. This determines the frequency of the events in the stream.

Selecting whether the event is generated on each 0 to 1 transition or each 1 to 0 transition of the selected counter bit.