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Read Handshake Without Acknowledge (Clock-Driven Logic)

Version:
    Last Modified: September 10, 2016

    Reads the data element from a handshake item without acknowledging the transfer, meaning that the data remains in the handshake item.Use this node in addition to the Acknowledge Handshake node as an alternative to the Read Handshake node to read one element of data if you need to control when the node acknowledges the data transfer.

    If ready for output is False during a given clock cycle, output valid returns False during that clock cycle.

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    reference in

    Reference to a handshake item. You can wire a handshake control, handshake constant, or the reference out terminal of another Handshake node to reference in.

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    ready for output

    A Boolean that determines whether downstream nodes are ready for this node to return a new value. The default is True. Use a Feedback Node to wire the ready for input output of a downstream node to this input.

    True Downstream nodes are ready for this node to return a new value.
    False Downstream nodes are not ready for this node to return a new value.
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    reference out

    The same handshake reference wired into this node.

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    data

    Data transferred using the handshake item.

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    output valid

    A Boolean that indicates whether this node has computed a result that downstream nodes can use. Wire this output to the input valid input of a downstream node to transfer data from the node to the downstream node.

    True The node has computed a result that downstream nodes can use.
    False This node has not computed a result that downstream nodes can use. Any data output returns an undefined value. The undefined value returned by a data output may differ between simulation and hardware.

    Where This Node Can Run:

    Desktop OS: none

    FPGA: All devices


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