Systems, pipeline stages, and computer readable media for advanced asynchronous pipeline circuits

An asynchronous pipeline stage using transitional signaling for implementing a conditional select, the stage comprising:

• a data latch for receiving data from at least one of a plurality of data inputs and for sending the received data to a data output, and
• a data latch controller for controlling the data latch, wherein the data latch controller receives a selection request, selects one data request input from a plurality of data request inputs based on the value of the selection request, receives a data request using transitional signaling from the selected data request input, and sends the data request to a data request output,
• wherein controlling the latch includes changing the latch to a closed mode in response to receipt of the data request from the selected data request input and the selection request, and changing the latch to a transparent mode in response to receipt of a data acknowledge associated with the selected data request output.

An asynchronous pipeline stage using transitional signaling for implementing a conditional join, the stage comprising:

• a data latch for receiving data at each of a plurality of data inputs and for sending data from a selected one of the plurality of data inputs to a data output, and
• a data latch controller for controlling the data latch, wherein the data latch controller receives a selection request, selects one data request input from a plurality of data request inputs based on the value of the selection request, receives a data request using transitional signaling from the selected data request input, and sends the data request to a data request output,
• wherein controlling the latch includes changing the latch to a closed mode in response to receipt of the data request from the selected data request input and the selection request, and changing the latch to a transparent mode in response to receipt of a data acknowledge associated with the selected data request output.

An asynchronous pipeline stage using transitional signaling for implementing a merge without arbitration, the stage comprising:

• a data latch for receiving data at each of a plurality of data inputs and for sending the received data to a data output, and
• a data latch controller for controlling the data latch, wherein the data latch controller receives data requests using transitional signaling from a plurality of data request inputs respectively associated with the plurality of data inputs and sends each received data request to a first data request output without arbitrating between the plurality of data request inputs,
• wherein controlling the latch includes changing the latch to a closed mode in response to receipt of the selection request and any of the data requests from the plurality of data request inputs, and changing the latch to a transparent mode in response to receipt of a data acknowledge associated with the first data request output.

An asynchronous pipeline stage using transitional signaling for implementing a stage arbitration, the stage comprising:

• a data latch for receiving data at each of a plurality of data inputs, each data input being associated with a respective data output, and
• a data latch controller for controlling the data latch, wherein the data latch controller receives a selection input and data requests using transitional signaling from a plurality of data request inputs, selects one of the plurality of data request inputs based on a value of the selection input, and sends the data present at the selected data request input to a data request output associated with the selected data request input,
• wherein controlling the latch includes sending the data value that is present at the selected data input to the data output associated with the selected data input.