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Internal Modules
128
SPRUHI7A – December 2012 – Revised June 2016
Copyright © 2012–2016, Texas Instruments Incorporated
High-Definition Video Processing Subsystem (HDVPSS)
1.2.7 High-Definition Video Encoder (HD_VENC)
The HD VENC module encodes the active video data from COMP module and sends it to 30-bit wide
DVO (Digital Video Output) port by generating timing signals to control the data flow.
1.2.7.1
Features Supported
•
The DVO port will support the output data rate up to 1080p formats (148.5 MHz × 30bits)
•
The DVO support 10/20/30-bit wide output with embedded sync or discrete sync
•
Fully programmable DVO timing generation (VS,HS,FID) to support any format flat display panel
•
Fully programmable internal timing generation - VS, HS, FID, HBI, VBI, and ACT_VID for internal video
compositor
•
Programmable Color Space Converter: 10-bit data path.
•
Gamma correction table
•
A triple channel 10-bit current-steering DAC to support both Component and VGA output.
1.2.7.2
Functional Overview
HD VENC primarily has two blocks: OSD and encoder. The OSD module is used to get the data from the
COMP module using the sync signals generated by encoder module. In the device, HD VENC supports
either digital (HD_VENC_D [HDMI/DVO1] and HD_VENC_D[DVO2]) or HD_VENC_A[HDCOMP].
lists the possible display ports and corresponding VENC names. The basic block diagram of
HD VENC module is shown in
.
Table 1-44. Display Ports and VENC Names
Display Port Name
Type
HDVENC Used
Port Name for PINMUX
Features Supported
HDMI/DVO1
Digital
HD_VENC_D
VOUT1
All features in digital
data flow path
DVO2
Digital
HD_VENC_D
VOUT0
All features in digital
data flow path
SDVENC
Analog
SD_VENC
Not Applicable
Please check SD VENC
userguide for details.
HDCOMP
Analog
HD_VENC_A
Not applicable
All features in analog
data flow path.