Command Mode

A command mode display has its own timing controller and memory frame buffer. In order to avoid tearing effect it is needed to notify the host of timing events on the panel. The sending of the pixel data in a command mode can be achieved in 3 different manners:

•Automatic mode: The SW starts the transfer when it is needed by setting to the
                                      TE_START bit. TE_START is HW cleared once transfer is finished. It
                                       lets SW start the transfer  manually based on application events or
                                       based on the TE trigger interrupt. If no synchronization is done,
                                       then some tearing effect could appear.

• DSI PHY TE trigger: MIPI DSI standard defines a TE trigger message which is
                                         conveying from panel to host trough the DSI link. Once the
                                         trigger is received the pixel data is automatically started.

• CMOS TE line         : This synchronization method is not part of the MIPI DSI standard
                                          but it is supported by AP. The pixel data transfer will start
                                          automatically when the pre-defined event will happen on the TE
                                          CMOS line.

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