126.96.36.199 Internal Pattern Mode
There are two key differences between internal and external pattern mode:
- Internal pattern mode only supports 1D patterns i.e the pattern data is same across the entire row or column of the DMD (Figure 20, Figure 21).
- Internal pattern mode enables user to design a simple system by eliminating need of an external processor to generate and send patterns every frame. In internal pattern mode one row or one column patterns are pre-loaded in the flash memory and a command is send to DLPC3478 controller to display the patterns. Implementation details on how to create patterns, save patterns in Flash memory and load patterns from flash memory into the DLPC3478 controller’s internal memory are described in SW Programmers Guide.
Figure 20. Column Replication
Figure 21. Row Replication
Internal pattern mode further provides two configurations to trigger the display of patterns, free running mode, (shown in Figure 22) and trigger in mode (shown in Figure 23).