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 through 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.