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Reads and removes the oldest element from the FPGA FIFO.

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reference in

A reference to the FIFO to read from.

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ready for output

A Boolean that determines if the downstream node is ready to receive data. If ready for output is FALSE during a given cycle, output valid returns FALSE during that cycle, and no data is removed from the FIFO.

Default: TRUE

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reference out

A reference to the FIFO that was read from.

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data

The oldest data element in the FIFO. If the FIFO is empty, the returned element is undefined.

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output valid

A Boolean that returns TRUE if this node has computed a result that downstream nodes can use.