Internal Modules
84
SPRUHI7A – December 2012 – Revised June 2016
Copyright © 2012–2016, Texas Instruments Incorporated
High-Definition Video Processing Subsystem (HDVPSS)
1.2.5.2.1 Frame Configuration Attribute
To enable the graphics output plane, a frame configuration attribute has to be written first (typically during
the initialization by using a VPDMA configuration descriptor) to set the frame display size (width, height
and input data format).
The size of the frame from GRPX module should match the VENC display output size to which the GRPX
output is redirected by COMP module. For example, if GRPX0 output is used in DVO2 display output then
GRPX0 frame configuration parameters should be same as DVO2 display output frame size.
Table 1-18. Frame Configuration Attribute (Configuration descriptor payload word 0-3)
Attribute
Bits
Description
Reserved
31-0
Reserved
frame_height
47-32
Frame height (default: 0x0, max 0x7FF)
If src_fmt_interlaced is set, frame_height is
field_height. (for example, for 480i it should be set
to 240).
Frame height should be an even number to ensure
interlaced outputs are same in height for both
fields.
frame_width
63-48
Frame width (default: 0x0, max 0x780)
Reserved
125-64
Reserved
src_fmt_interlaced
126
Format of the source image:
0 = Progressive (default)
1 = Interlaced
Soft reset
127
Software reset of GRPX data pipeline:
Writing 1 resets GRPX data pipeline
Returns 0 on read always