SPRUIL1D May 2019 – December 2024 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
The MIPI DSI v1.3.1 Transmitter Controller (DSITX) provides an interface that receives data and control from the host processor display system using either the DPI or SDI input bus interfaces. The DSITX will translate the incoming pixel information and control signals into an internal packed byte format, in the case of DPI, or pass in the prepacked SDI byte format, before the internal byte format data is packetized and sent to the MIPI DSI Compatible display via the MIPI D-PHY physical interface. It supports video and command mode displays and can work in multi-display mode using virtual channel identification on the packets.
The DSITX controller provides two interfaces for connection to a display panel. Normal operation for a panel supporting DCS commands can be done using either SDI interface, or using the APB (Advanced Peripheral Bus) access to DIRECT_CMD registers. Video streaming applications can only use the SDI or DPI interface. The DSI controller supports flow control using the SDI video interface.
The DSITX implements the stream arbitration and low-level protocol layer functionalities required by MIPI DSI specification v1.3. It supports up to 4 x 2.5 Gbps D-PHY data lanes in a single-link configuration and handles the byte lane mapping per use case (1, 2, 3, or 4-lanes).
The DSITX controller block diagram is illustrated in Figure 1-1.