參數(shù)資料
型號: CH7008A-V
廠商: Electronic Theatre Controls, Inc.
英文描述: Digital PC to TV Encoder Features
中文描述: 數(shù)字電視編碼器電腦功能
文件頁數(shù): 30/49頁
文件大?。?/td> 341K
代理商: CH7008A-V
CHRONTEL
CH7008A
30
201-0000-027 Rev 2.2, 9/30/99
Flicker Filter Register
Symbol: FFR
Address: 01H
Bits: 6
The flicker filter register provides for adjusting the operation of the various filters used in rendering the on-screen
image. Adjusting settings between minimal and maximal values enables optimization between sharpness and flicker
content. The FC[1:0] bits determine the settings for the chroma channel. The FT[1:0] bits determine the settings for
the text enhancement circuit. The FY[1:0] bits determine the settings for the luma channel. In addition, the Chroma
channel filtering includes a setting to enable the chroma dot crawl reduction circuit.
Note:
When writing to register O1H, FY[1:0] is bits 3:2. FT[1:0] is bits 1:0. When reading from the register O1H, FY
[1:0] is bits 1:0 and FT[1:0] is bits 3:2.
Register Descriptions
(continued)
VOS[1:0]
Output Format
00
01
10
11
PAL
NTSC
PAL-M
NTSC-J
Bit:
Symbol:
Type:
Default:
7
6
5
FC1
4
FC0
3
FY1
2
FY0
1
FT1
0
FT0
R/W
R/W
R/W
R/W
R/W
R/W
1
1
0
0
1
0
Table 14. Flicker Filter Settings
FY[1:0]
00
01
10
11
Settings for Luma Channel
Minimal Flicker Filtering
Slight Flicker Filtering
Maximum Flicker Filtering
Invalid
FT[1:0]
00
01
10
11
Settings for Text Enhancement Circuit
Maximum Text Enhancement
Slight Text Enhancement
Minimum Text Enhancement
Invalid
FC[1:0]
00
01
10
11
Settings for Chroma Channel
Minimal Flicker Filtering
Slight Flicker Filtering
Maximum Flicker Filtering
Enable Chroma DotCrawl Reduction
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