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The AP underscored Wieldy and AP underscore ANK provide one way handshaking between two modules how

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can we provide Two-Way handshaking between two hardware modules?

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Inviter such as this lecture will cope with this question by introducing the AP underscore its port

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interface.

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Interface mode AP underscored includes a two way handshake signals with the data port, the handshake

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is an industry standard, valid and acknowledged handshaking mechanism.

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The AP underscored support level II protocol provides the following signals data port acknowledged signals

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to indicate when data is consumed.

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Vallet signal to indicate when data should be read.

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Under the Toovey handshaking mechanism, when a module is going to receive data, it waits to receive

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a valid signal on the desired input port.

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When it receives the valid signal, it reads the data and sends back to acknowledge signal to the sender

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module.

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When a module assigns data on a port with an API underscore its interface, it activates the valid signal

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and will wait for that knowledge.

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When it receives an acknowledged signal, it activates the valid signal and releases the port's data

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or assigns new data.

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As this video is the last lecture that talks about Etchells Center says the next lecture will give you

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a couple of exercises to review and master some of the techniques explained throughout this section.

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These are our takeaway messages, interface mode, AP underscore includes a two way handshake signal

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with the data port that underscore support level II protocol provides the following signals data port

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acknowledged signal to indicate when data is consumed, while its signal to indicate when data should

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be read.

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Now, the quiz question.

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Consider the following other design, synthesize the code and perform the RTL code simulation and check

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the AP underscore X signaling in the waveform below.