DLPU114A August 2024 – November 2024 DLPC8445
While writing to the controller operating in the I2C target configuration, the first byte following the start condition should be the controller device write address (36h). It is possible to change the device address to either 34h or 36h. This should be indicated correctly to the controller through a TSTPT pin (TSTPT_2) that gets latched up at the startup (If the pin is set LOW then the device address is 36h otherwise if it is set as High then the device address is 34h). The communication will go through if only if TSTPT is set to the value that is matching the address that the user sets in the DLP Tool Suite.
The remaining bytes are sent as specified in the Command Protocol section below. While reading from the controller in I2C target configuration, the first byte following the start condition should be controller device write address +1 (37h default) followed by header and opcode bytes as explained later in the document.