Start Symbol
Header
Payload
Internal Modules
137
SPRUHI7A – December 2012 – Revised June 2016
Copyright © 2012–2016, Texas Instruments Incorporated
High-Definition Video Processing Subsystem (HDVPSS)
1.2.7.6
JEIDA Format of DVO
A new output format of DVO has been added and a corresponding control bit “JED” has also been added.
This bit is used to make DVO interfacing to certain LCD panels seamlessly.
illustrates the
JEIDA and VESA (the normal/default format we use) format.
Table 1-48. JEIDA and VESA Format
VESA Mode
JEIDA Mode
RGB Data
DVO Port
RGB Data
DVO Port
G/B/R[9]
DV_OUT0/1/2[9]
G/B/R[3]
DV_OUT0/1/2[9]
G/B/R[8]
DV_OUT0/1/2[8]
G/B/R[2]
DV_OUT0/1/2[8]
G/B/R[7]
DV_OUT0/1/2[7]
G/B/R[9]
DV_OUT0/1/2[7]
G/B/R[6]
DV_OUT0/1/2[6]
G/B/R[8]
DV_OUT0/1/2[6]
G/B/R[5]
DV_OUT0/1/2[5]
G/B/R[7]
DV_OUT0/1/2[5]
G/B/R[4]
DV_OUT0/1/2[4]
G/B/R[6]
DV_OUT0/1/2[4]
G/B/R[3]
DV_OUT0/1/2[3]
G/B/R[5]
DV_OUT0/1/2[3]
G/B/R[2]
DV_OUT0/1/2[2]
G/B/R[4]
DV_OUT0/1/2[2]
G/B/R[1]
DV_OUT0/1/2[1]
G/B/R[1]
DV_OUT0/1/2[1]
G/B/R[0]
DV_OUT0/1/2[0]
G/B/R[0]
DV_OUT0/1/2[0]
The JEIDA mode is only used in three-channel RGB with discrete sync output format.
1.2.7.7
VBI Data Service
Following are the commonly used VBI-data-services on analog component video interface, these functions
are supported by the hardware inside the encoder.
•
Type-A and Type-B data packets based on CEA-805-A standard, which include CGMS-A/APS(Analog
Protection System)/AFD(Active Format Description)/RCI(Re-distribution Control Information)
•
International VBI data support based on the international standard IEC-62375, which is mainly for the
applications outside of north-American.
A typical VBI data package usually consists of three segments, they are illustrated in
.
Figure 1-80. Typical VBI Data Package
Each segment has its-own programmable symbol. Number of symbol for each segment is also
programmable. The minimum element of a symbol is one pixel clock. For different display formats,
different pixel clocks have been used. All of these require the VBI data encoder can be used for different
display interface formats.
Two programmable VBI data encoders have been designed to service all the above functional
requirement. These VBI data line encoders are symbol based, it can accommodate different symbol
modulations.
•
The first VBI line will be used for type-A data packet of CEA-805-A standard or IEC-62375 standard.
•
The second VBI line will be used for type-B data packet of CEA-805-A standard