DLPU114A August 2024 – November 2024 DLPC8445
This command configures the characteristics of the V-by-One (VBO) external video source.
The byte mode is the color depth set by the front end.
The data map is the color format that is transmitted from the video front end.
The data rate frequency range is the bit rate window. If not defined by the front end, the bit rate window can be found by the following equation by multiplying the total pixel clock by the byte mode number multiplied by 10.
The number of lanes is typically set by the video source. Note the source clock frequency, link clock frequency per lane, and the link transfer rate (or bit rate) per lane limitations when selecting a number of lanes. The source clock frequency is calculated by multiplying the total pixel clock by the number of bytes per pixel (byte mode) and dividing by the number of lanes. The link frequency per lane is the total pixel clock divided by the number of lanes. The link transfer rate per lane is the data rate frequency divided by the number of lanes.
The minimum and maximum specifications for these parameters can be found in the V-by-One interface timing requirements section of the controller datasheet. The VBO configuration needs to be adjusted to meet the source frame timing requirements as well as the parameters mentioned above. The source frame timing requirements can also be found in the controller datasheet.
The Horizontal Total of the video feed must be a multiple of 8.
This command must be followed with a Write Execute Display command to be properly applied.