SPRUIL1D May 2019 – December 2024 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
The DSITX controller can be configured to perform a transition between LP state and HS state during the horizontal lines which have long periods of blanking. The registers controlling the timing for the DPHY wakeup time and the reg_line_duration must be programmed to exactly match the DPI cycles of the horizontal line to the tx_byte_clk cycles required for the number of active lanes selected.
Figure 12-1100 Low Power Operation with Four and Two Active LanesThe LP operation for each vertical blanking line will require the reg_line_duration to be configured to match the following:
Note REG_WAKEUP_TIME is used internally to adjust the cycles for each vertical LP line.
Figure 12-1101 REG_LINE_DURATION Timing Example for LP Operation