參數(shù)資料
型號： HMP8154
廠商： Intersil Corporation
英文描述： NTSC/PAL Encoders
中文描述： 的NTSC / PAL編碼器
文件頁數(shù)： 4/34頁
文件大小： 256K
代理商： HMP8154
4
Note that overlay capability is not available when the 24-bit
RGB input format is used.
The encoder provides 4 methods for mixing the overlay data
with the pixel data: disabled, external mixing, internal mixing
and no mixing. The method used is selected in the input
format control register.
Overlay Mixing: Disabled
When overlay mixing is disabled, the OL0-OL2, M0, and M1
inputs are ignored and the pixel data is not changed.
Overlay Mixing: External
When external overlay mixing is selected, mixing of overlay
data and pixel data is controlled by the M1 and M0 inputs.
M1 and M0 indicate the mixing level between the pixel inputs
and the overlay inputs, on a pixel-by-pixel basis. M1 and M0
are ignored if OL2-OL0 = 000. Otherwise, they select the
percentage of each color to sum as shown in Table 3.
In external mixing mode, there is no minimum number of
pixels an overlay color or pixel color must be selected. The
mixing level may also vary at any rate.
Overlay Mixing: Internal
Mixing of overlay and pixel data may also be controlled
internally, and the M1 and M0 input pins are ignored. A
transition from pixel data to overlays, from overlays to pixel
data, or between different overlay colors triggers the mixing
function. An overlay color must be selected for a minimum of
three pixels for proper overlay operation in this mode. Internal
overlay mixing should not be used with the BT.656 input format.
When going from pixel to overlay data, mixing starts one
pixel before the selection of the overlay color (OL2-OL1 !=
000). The first pixel output before the overlay uses 12.5%
overlay color plus 87.5% pixel color. The next output is
aligned with the selection of the overlay color and uses
87.5% overlay color plus 12.5% pixel color. Additional
outputs use 100% overlay color.
When going from overlay to pixel data, mixing starts one
pixel before the selection of the pixel color (OL2-OL0 = 000).
TABLE 1. PIXEL DATA INPUT FORMATS
PIN
NAME
16-BIT
4:2:2
YCBCR
8-BIT
4:2:2
YCBCR
BT.656
BLUE
SCREEN
16-BIT
RGB
(5, 6, 5)
24-BIT
RGB
P0
P1
P2
P3
P4
P5
P6
P7
Cb0, Cr0
Cb1, Cr1
Cb2, Cr2
Cb3, Cr3
Cb4, Cr4
Cb5, Cr5
Cb6, Cr6
Cb7, Cr7
Ignored
B0
B1
B2
B3
B4
G0
G1
G2
B0
B1
B2
B3
B4
B5
B6
B7
P8
P9
P10
P11
P12
P13
P14
P15
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y0, Cb0, Cr0
Y1, Cb1, Cr1
Y2, Cb2, Cr2
Y3, Cb3, Cr3
Y4, Cb4, Cr4
Y5, Cb5, Cr5
Y6, Cb6, Cr6
Y7, Cb7, Cr7
YCbCr Data,
SAV and EAV
Sequences
Ignored
G3
G4
G5
R0
R1
R2
R3
R4
G0
G1
G2
G3
G4
G5
G6
G7
P16
P17
P18
P19
P20
P21
P22
P23
OL0
OL1
OL2
M0
M1
-
-
-
R0
R1
R2
R3
R4
R5
R6
R7
TABLE 2. OVERLAY COLOR PALETTE
OL2-OL0
COLOR
000
001
010
011
100
101
110
111
Pixel Data
75% Blue
75% Red
75% Magenta
75% Green
75% Cyan
75% Yellow
100% White
TABLE 3. OVERLAY MIXING FACTORS
M1, M0
% OVERLAY
COLOR
% PIXEL
COLOR
00
01
10
11
0
12.5
87.5
100
100
87.5
12.5
0
HMP8154, HMP8156A
相關(guān)PDF資料
PDF描述
HMP8154CN NTSC/PAL Encoders
HMP8156A NTSC/PAL Encoders
HMP8154EVAL1 NTSC/PAL Encoders
HMP8190 NTSC/PAL Video Encoder
HMP8190CN NTSC/PAL Video Encoder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HMP8154_05 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Encoders
HMP8154CN 制造商:Rochester Electronics LLC 功能描述:- Bulk
HMP8154EVAL1 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Encoders
HMP8156 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Encoder
HMP8156_03 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Encoder
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