Primary Mode And Video Standard; Primary Mode And Video Standard Controls; Table 2: Primary Mode And Video Standard Selection - Analog Devices ADV7850 Hardware Manual

4 PRIMARY MODE AND VIDEO STANDARD

Setting the primary mode and choosing a video standard are the most fundamental settings when configuring the ADV7850.
There are four main modes of operation on the ADV7850. These modes are enabled by setting
• SDP mode
Analog-composite and analog S-Video mode. This covers all standard definition modes that have a modulated color subcarrier.
Typical examples are PAL-BGHID, PAL-M/N, NTSC-M/N and SECAM. SDP also supports SD YPrPb and SD SCART RGB. The
SDP core is the main processing block in this mode.
Component mode
•
Analog-component video mode. This includes all video signals that arrive in a YPbPr (or YUV) analog format. Typical examples
are progressive and high definition video signals. The CP core is the main processing block in this mode.
• Graphics mode
Analog-graphic mode. This mode is intended for RGB input signals with high bandwidth. The CP core is the main processing
block in this mode.
• HDMI mode
HDMI mode. In HDMI mode the ADV7850 can receive and decode HDMI or DVI data throughout the DVI/HDMI receiver
front end. Video data from the HDMI receiver is routed to the HDMI Tx while audio data is available on the audio interface.
This mode is enabled by selecting either the HDMI Graphics primary mode or HDMI Component primary mode.

4.1 PRIMARY MODE AND VIDEO STANDARD CONTROLS

prim_mode[3:0], Addr A0 (VFE), Address 0x01[3:0]
This control is used to select the primary mode of operation of the decoder. It is to be used with vid_std[5:0].
Function
prim_mode[3:0]
0000
0001
0010
0011
0100
0101
0110 
0111 - 1111
vid_std[5:0], Addr A0 (VFE), Address 0x00[5:0]
This control is used to set the input video standards and oversampling mode. Its configuration is dependent on prim_mode[3:0].
Function
vid_std[5:0]
000010
prim_mode[3:0] should be used with vid_std[5:0] to set the desired video mode. Both controls should be set according to
For HDMI modes vid_std[5:0] can be left at default.
prim_mode[3:0]
Code Description
SDP
0000
(Standard Definition)
Rev. A May 2012
Description
SDP mode
Component mode
Graphics mode
Reserved
Reserved
HDMI-Comp
HDMI-GR
Reserved
Description
Default

Table 2: Primary Mode and Video Standard Selection

Processor Code
00000
SDP 00001
00010
vid_std[5:0]
Input Video Output Resolution
SD 2x1 720x480i/576i
SD 4x1 720x480i/576i
Reserved Reserved
36
prim_mode[3:0] appropriately.
Comment
CVBS
CVBS
ADV7850
Table 2.