ZHCSIC5C June 2018 – August 2021 DLPC3479
PRODUCTION DATA
Pattern display is one of the key capabilities of the DLPC3479 display and light controller. When the DLPC3479 controller is configured for pattern display, video processing functions can be bypassed. For user flexibility and simple system design, the DLPC3479 controller supports both external pattern and internal pattern streaming modes. In external pattern streaming mode, patterns are sent to the DLPC3479 controller over parallel interface. In internal pattern streaming mode, 1D patterns are pre-loaded in flash memory and a host command is sent to DLPC3479 controller to display the patterns. Internal pattern mode creates pixel-accurate patterns on the DMD and allows for a simple system design by eliminating the need for any external processor to generate and sent 1D patterns to the DLPC3479 controller.
The DLPC3479 controller outputs two configurable Trigger Out and one Trigger In signal to synchronize patterns with a camera, sensor, or other peripherals.
SIGNAL NAME | DESCRIPTION |
---|---|
TRIG_OUT_1 (TSTPT_4) | External Pattern Mode: Active during the beginning of each input frame. |
Internal Pattern Mode: Active during the beginning of a predefined group of patterns. | |
TRIG_OUT_2 (GPIO_07) | Active during display of each pattern. When operating in external pattern mode, one input frame can have multiple patterns. |
TRIG_IN (3DR) | Active in Internal Pattern Display mode only. An external input trigger signal is used to advance to the next pattern in internal pattern mode. |