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Chapter 5: Core Architecture
AV Traffic Receiver Path Signals
Table
Table 5-5: AV Traffic Signals: Receiver Path
Signal | Direction | Description |
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av_rx_data[7:0] | Output | AV frame data received is supplied on this port. |
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av_rx_valid | Output | Control signal for the av_rx_data[7:0] port |
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av_rx_frame_good | Output | Asserted at the end of frame reception to indicate |
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| that the frame should be processed by the MAC |
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| client. |
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av_rx_frame_bad | Output | Asserted at the end of frame reception to indicate |
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| that the frame should be discarded by the MAC |
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| client: either the frame contained an error, or it was |
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| intended for the PTP or legacy traffic channel. |
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Tri-Mode Ethernet MAC Client Interface
Table
MAC Transmitter Interface
These signals connect directly to the identically named
Table
Signal | Direction | Description |
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tx_data[7:0] | Output | Frame data to be transmitted is supplied on this port |
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tx_data_valid | Output | A data valid control signal for data on the |
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| tx_data[7:0] port |
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tx_underrun | Output | Asserted to force the MAC to corrupt the current frame |
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tx_ack | Input | Handshaking signal asserted when the current data on |
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| tx_data[7:0] has been accepted by the MAC. |
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50 | www.xilinx.com | Ethernet AVB Endpoint User Guide |
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| UG492 July 23, 2010 |