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# CDC #18

## Origin Flip-flop

|Graph|Signal|Clock Domain|Flip-flop|
|:---:|---|---|---|
|<a href="/graphs/cdcs/cdc_18_graph.html"><img title="Open CDC Graph" src="/_static/images/icon_graph.png" style="max-height: 25px; width: auto;" alt="Open CDC Graph"></a>|Signal: `u2_ddr.data_write2`<br>Usage:<br>- <linty-anchor href="//ddr_ctrl.vhd#286">ddr_ctrl.vhd#286</linty-anchor><br>- <linty-anchor href="//ddr_ctrl.vhd#293">ddr_ctrl.vhd#293</linty-anchor><br>- <linty-anchor href="//ddr_ctrl.vhd#296">ddr_ctrl.vhd#296</linty-anchor>|<linty-anchor href="/plasma_3e.vhd#24">CLK_50MHZ (falling)</linty-anchor>|TOP (<linty-anchor href="/plasma_3e.vhd#84">plasma_3e</linty-anchor>) > <linty-anchor href="/plasma_3e.vhd#215">u2_ddr</linty-anchor> (<linty-anchor href="/ddr_ctrl.vhd#57">ddr_ctrl</linty-anchor>) > <linty-anchor href="/ddr_ctrl.vhd#284">ddr_ctrl.vhd#284</linty-anchor>|


## Target Flip-flop

|Graph|Signal|Clock Domain|Flip-flop|
|:---:|---|---|---|
|<a href="/graphs/cdcs/cdc_18_graph.html"><img title="Open CDC Graph" src="/_static/images/icon_graph.png" style="max-height: 25px; width: auto;" alt="Open CDC Graph"></a>|Signal: `u2_ddr.data_read`<br>Usage:<br>- <linty-anchor href="//ddr_ctrl.vhd#277">ddr_ctrl.vhd#277</linty-anchor><br>- <linty-anchor href="//ddr_ctrl.vhd#279">ddr_ctrl.vhd#279</linty-anchor>|<linty-anchor href="/plasma_3e.vhd#24">CLK_50MHZ (rising)</linty-anchor>|TOP (<linty-anchor href="/plasma_3e.vhd#84">plasma_3e</linty-anchor>) > <linty-anchor href="/plasma_3e.vhd#215">u2_ddr</linty-anchor> (<linty-anchor href="/ddr_ctrl.vhd#57">ddr_ctrl</linty-anchor>) > <linty-anchor href="/ddr_ctrl.vhd#263">ddr_ctrl.vhd#263</linty-anchor>|


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