SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The TVG has a single register: tvg_img_size that should complies with the following rules against VSG settings:
tvg_line_size: must be equal to rgb_size set for VSG
tvg_nbline: must be equal to vact_length set for VSG
The TVG generates a data stream in the same format than the one specified at the output of the VRS. The content of that flow is specified by the following registers:
The Test Video Generator can be programmed to generate a set of test colour patterns based on the display panel that will be used. The panel parameters for horizontal and vertical resolution along with the frame rate and pixel colour depth need to be set based on the datasheet information for the panel.
Figure 12-403 presents TVG MODE patterns.
An example of the sequence is as follows:
Note: The TVG settings on active area for the number of lines per frame and number of bytes per line must match VSG settings on active area. Any mismatch will create an error that is detected in the VSG and forces recovery mode in TVG, stopping test frame generation.