ADV8003 Hardware Manual
Rev. B, August 2013
167
height
video
input
active
width
video
input
active
byte
SIZE
BUF
RNR
_
_
_
_
_
_
)
(
_
_
×
≡
Equation 18: Calculating RNR Buffers
Note
: Using RNR will use external memory bandwidth which may impact on other features such as OSD image storage as well as de-
interlacing.
pvsp_rnrbuf0_addr[31:0]
, Primary VSP Map,
Address 0xE820[7:0]; Address 0xE821[7:0]; Address 0xE822[7:0]; Address 0xE823[7:0]
Sets the start address of random noise reduction information buffer 0. RNR buffers are needed only when random noise reduction is
enabled.
Function
pvsp_rnrbuf0_addr[31:
0]
Description
0x000FD200
Default
0xXXXXXXXX
Start address of RNR buffer 0
pvsp_rnrbuf1_addr[31:0]
, Primary VSP Map,
Address 0xE824[7:0]; Address 0xE825[7:0]; Address 0xE826[7:0]; Address 0xE827[7:0]
Sets the start address of random noise reduction information buffer 1. RNR buffers are needed only when random noise reduction is
enabled.
Function
pvsp_rnrbuf1_addr[31:
0]
Description
0x002F7600
Default
0xXXXXXXXX
Start address of RNR buffer 1
3.2.3.8.
Mosquito Noise Reduction
The second type of noise reduction algorithm implemented in the ADV8003 is the mosquito noise reduction (MNR). The MNR block
selectively removes ringing artifacts introduced into highly compressed (MPEG) video data. For the best results, this block should be
enabled when the input video is not being scaled, due to the fact that it is easier to identify and remove compressed artifacts at lower
resolutions.
MNR can support both interlaced and progressive input video. It can be enabled or disabled by
. As with the RNR block, a
certain amount of control is provided to the user. This can be controlled using
di_mnr_enable
, Primary VSP Map,
Address 0xE84C[5]
This bit is used to enable mosquito noise reduction (MNR).
Function
di_mnr_enable
Description
0
Disable MNR
1
Enable MNR
di_mnr_level[1:0]
, Primary VSP Map,
Address 0xE84F[3:2]
This signal sets the MNR level.
Содержание ADV8003
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Страница 402: ...ADV8003 Hardware Manual Rev B August 2013 402 APPENDIX D PACKAGE OUTLINE DRAWING Refer to Section 1 4...
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