LOAD2 functionality provides improved global binary pattern rates for applications that can trade diminished vertical resolution for higher pattern rates. Examples of these types of applications are shutter or chopper applications and vertical structured light patterns. Asserting LOAD2 causes the DLPC964 controller and attached DMD to load two rows for every row of data sent, reducing the pattern load time to ½ of a full DMD load. Loading each block will only require ½ the number of DMD row data (136 ÷ 2 = 68 rows per block). This function does not reduce the MCP timing.
This mode can be enabled by either asserting the LOAD2 pin high or setting a bit in the DLPC964 register to select LOAD2 mode (vs normal load mode), and then writing another bit requesting the DLPC964 update the operational mode of the DMD via the LSIF, which causes all DMD data pixel updates (and MCPs) to cease, and the DMD to reinitialize. Once the new configuration settings are reprogrammed into the DMD, the LSIF can return to processing MCP commands based on the DLPC964 inputs.