Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 1/21/2022
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5.5.3.6. Programmable Differential Output Voltage

The programmable VOD settings allow you to adjust the output eye opening to optimize the trace length and power consumption. A higher VOD swing improves voltage margins at the receiver end, and a smaller VOD swing reduces power consumption. You can statically adjust the VOD of the differential signal by changing the VOD settings in the Intel® Quartus® Prime software Assignment Editor.

Figure 83. Differential VOD This figure shows the VOD of the differential LVDS output.


Table 52.   Intel® Quartus® Prime Software Assignment Editor—Programmable VOD This table lists the assignment name for programmable VOD and its possible values in the Intel® Quartus® Prime software Assignment Editor.
Field Assignment
To tx_out
Assignment name Programmable Differential Output Voltage (VOD)
Allowed values 0 (low), 1 (medium low), 2 (medium high), 3 (high). Default is 2.