SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
When the TDM is enabled (DISPC_CONTROLo[20] TDMENABLE = 1), after the active matrix display processing, the pixels are formatted on one or multiple cycles (a maximum of three cycles). The number of bits for each cycle is set in the DISPC_DATAo_CYCLE1 register for the first cycle, the DISPC_DATAo_CYCLE2 register for the second cycle, and the DISPC_DATAo_CYCLE3 register for the third cycle. The interface data bus width can be 8, 9, 12, or 16 bits. The configuration of the data bus is done in the DISPC_CONTROLo[22:21] TDMPARALLELMODE bit field.
When the TDM is disabled (DISPC_CONTROLo[20] TDMENABLE = 0), the DISPC outputs the pixels using the conventional formats: active matrix display monochrome/color. In this case, the configuration of the data bus width is done through the DISPC_CONTROLo[9:8] TFTDATALINES bit field.
Figure 13-88 through Figure 13-91 show various examples of TDM settings in the function of pixel data formats and the interface data bus width.