DLPU081B January 2019 – January 2024 DLPC3479
Table 3-32 describes the write parameters.
msb | Byte 1 | lsb | |||||
---|---|---|---|---|---|---|---|
b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
b(7) | Reserved |
b(6) | Polarity of 3-D Reference (External
Only)
|
b(5) | Frame Dominance
|
b(4:2) | Reserved |
b(1) | Source of 3-D Reference
|
b(0) | Reserved |
Default: 00h |
When appropriate, the system will automatically enable 3-D operation based on source frame rate and whether 3-D sequences are loaded in flash. The 3-D parameters specified by this command will take effect following the next VSYNC.
3-D image data must always be sent frame sequential. Syncs and blanking are sent between every eye frame at frame rates greater than approximately 94Hz. DLPC3479 does not support frame rate multiplication.
Internal reference generator is not supported on dual ASIC DLPC3479.
The 3-D Reference is used to specify whether a frame of data contains left eye data or right eye data. This 3-D reference can be provided to the display by an external hardware signal. Table 3-33 shows which 3-D Reference source can be used with which image data port.
When using the external hardware signal as the reference, it must be provided for every frame of data. If the external 3-D Reference is misaligned with the data, it can be corrected using the Polarity of 3-D Reference (External Only) parameter. As noted, the Polarity of 3-D Reference parameter is only applicable when the External Signal is selected as the 3-D Reference source.
Display Data Port | 3-D Reference Source | Applicable | Notes |
---|---|---|---|
Parallel | External Hardware Signal | Yes | Recommended |
Parallel | Internal Reference Generator | No |
The Write 3-D Reference (30h) command should be use with this selection.
For frame sequential 3-D, Frame Dominance determines which eye frames in the data stream go together to create a single 3-D image. Left Dominance indicates that the first eye frame of a pair is Left and the second eye frame is Right. Right Dominance indicates that the first eye frame of a pair is Right and the second eye frame is Left. Frame dominance is essential for correct operation of display histograms, which span both eye frames of a single image. When the image is frozen, proper Frame Dominance ensures the correct display of two eye frames together. Frame dominance control must not be used to attempt correction for misalignment of the 3-D reference signal to the image data.