UG-707
ADV8005 Hardware Reference Manual
pvsp_bypass_ddr_mode
, Primary VSP Map,
Address 0xE84D[5]
This bit is used to enable game mode for the Primary VSP.
Function
pvsp_bypass_ddr_mode
Description
0 (default)
Normal mode
1
Game mode
External memory is not used in game mode. Intra-field interpolation is used for interlaced input. Mosquito/block noise reduction and sharpness
are supported in game mode, both for interlaced input and progressive input.
In game mode, the following functions are not supported:
•
Frame rate change
•
Motion adaptive de-interlacing (autodisabled)
•
Cadence detection (autodisabled)
•
Random noise reduction (autodisabled)
•
CUE correction (autodisabled)
•
Crop
•
Album mode
The functions listed as autodisabled do not need to be manually disabled in game mode –
will automatically disable them when game
mode is enabled. Functions which are not listed as autodisabled must be manually disabled before game mode is enabled.
3.2.1.7.
Low Latency Mode
Game mode has a very small frame latency but some processing functions cannot be supported in this mode.
provides another mode,
low latency mode, which can support frame rate change, scaling, crop and album mode.
To enable low latency mode,
Frame latency in low latency mode is listed in
, which shows the maximum frame latency is 1.4 x frame.
Table 22: Frame Latency in Low Latency Mode
Output
Input
Frame Rate 50 Hz
59.94/60 Hz
23.97/24 Hz 25/30 Hz
Frame rate
Timing
576p/720p/1080
p
480p/720p/1080p 720p/1080p
/4kx2k
720p/1080p
/4kx2k
50 Hz
576i
1080i
0.3~1.3
0.3~1.3
0.3~1.4
0.3~1.4
576p
720p
1080p
0.3~1.3
0.3~1.3
0.3~1.4
0.3~1.4
59.94/60 Hz
480i
1080i
0.3~1.3
0.3~1.3
0.3~1.4
0.3~1.4
480p
720p
1080p
0.3~1.3
0.3~1.3
0.3~1.4
0.3~1.4
23.97/24/25/30
Hz
720/1080p 0.3~0.8
0.3~0.8
0.3~1.3
0.3~1.3
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