[Back to CDC Report](../clock_domain_crossings.md)

<br>

# CDC #15

## Origin Flip-flop

|Graph|Signal|Clock Domain|Flip-flop|
|:---:|---|---|---|
|<a href="/graphs/cdcs/cdc_15_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.write_active`<br>Usage:<br>- <linty-anchor href="//ddr_ctrl.vhd#223">ddr_ctrl.vhd#223</linty-anchor><br>- <linty-anchor href="//ddr_ctrl.vhd#238">ddr_ctrl.vhd#238</linty-anchor><br>- <linty-anchor href="//ddr_ctrl.vhd#240">ddr_ctrl.vhd#240</linty-anchor>|<linty-anchor href="/plasma_3e.vhd#140">clk_reg (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#218">ddr_ctrl.vhd#218</linty-anchor>|


## Target Flip-flop

|Graph|Signal|Clock Domain|Flip-flop|
|:---:|---|---|---|
|<a href="/graphs/cdcs/cdc_15_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>|


<br>

[Back to CDC Report](../clock_domain_crossings.md)