3.5. Link Debugging Sequence
The GTS Serial Lite IV IP provides a link debugging sequence for TX and RX that you can use when debugging your design.
Figure 9. TX Link Debugging Flowchart
Signal | Location | Description |
---|---|---|
tx_link_up | Top-level TX signal | The IP asserts this signal to indicate that the initialization sequence is complete and the IP is ready to transmit the data. |
tx_pll_locked | Top-level PHY signal | This active-high signal indicates that the transceivers are locked to the reference clock. |
Figure 10. RX Link Debugging Flowchart
Signal | Location | Description |
---|---|---|
rx_link_up | Top-level RX signal | The IP asserts this signal to indicate that the initialization sequence is complete, and the IP is ready to receive data. |
phy_rx_pcs_ready[(n*2)-1:0] | Top-level PHY signal | The IP asserts this signal when RX datapath is ready to receive data. |
phy_rx_block_lock[(n*2)-1:0] | Top-level PHY signal | The IP asserts this signal to indicate the 66b block alignment has completed for the lanes. |