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参数资料
| 型号： | HMP8112 |
| 厂商： | Harris Corporation |
| 英文描述： | NTSC/PAL Video Decoder |
| 中文描述： | NTSC / PAL视频解码器 |
| 文件页数： | 14/40页 |
| 文件大小： | 563K |
| 代理商： | HMP8112 |
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14
TABLE 6. VIDEO INPUT CONTROL
DESTINATION ADDRESS = 00
H
BIT
NUMBER
FUNCTION
DESCRIPTION
RESET
STATE
7 - 6
Video Input
Standard
These bits select the video input standard.
00 = PAL B, G, H, I, N; 4.43MHz subcarrier; 50fps; 625 lines/frame;
01 = PAL M; 3.58MHz subcarrier; 60fps; 525 lines/frame;
10 = Special PAL N; 3.58MHz subcarrier; 50fps; 625 lines/frame;
11 = NTSC M; 3.58MHz subcarrier; 60fps; 525 lines/frame (default);
11
B
5
Color Trap Filter
Disable
This bit enables the color subcarrier trap filter. The filter removes the color subcarrier infor-
mation from the luminance channel. The filter should be enabled for PAL Standard systems.
0 = Enabled
1 = Disabled (default)
1
B
4
Chrominance Low
Pass Filter Disable
This bit enables the chrominance low pass filter. This filter band limits the chrominance
channel to remove luminance artifacts. This filter should be enabled for PAL Standard
systems.
0 = Enabled
1 = Disabled (default)
1
B
3
Automatic Color
Gain Control
This bit enables the color AGC function. When this bit is set the color AGC will automati-
cally adjust the chrominance channel gain, to drive the color reference burst to a nominal
±
20 IRE’s. When this bit is cleared the color AGC gain factor is set to 1.0 and the color
saturation must be adjusted to obtain nominal CrCb values.
0 = Disabled
1 = Enabled (default)
1
B
2 - 1
A/D Converter
Multiplexor Selects
These bits control the A/D input select multiplexers and whether S-Video is being input as
follows: MUXSEL1,0 =
0, 0 = Select Composite Video Input #0, set decoder for Composite
1, 0 = Select Composite Video Input #1, set decoder for Composite
0, 1 = Select Composite Video Input #2, set decoder for Composite
1, 1 = Select S-Video Y and C Inputs
00
B
0
Not Used
Write Ignored, Read 0’s
X
B
TABLE 7. LUMINANCE BRIGHTNESS CONTROL
DESTINATION ADDRESS = 01
H
BIT
NUMBER
FUNCTION
DESCRIPTION
RESET
STATE
7
IRE Setup
Cancellation Control
This bit enables the black setup cancelation circuit for NTSC sources. When this bit is set
a value of 73 is used to strip the sync information from the video signal. When this bit is
cleared a value of 64 is used to strip the sync information.
0 = subtract 64 from the luminance signal
1 = subtract 73 from the luminance signal
1
B
6 - 0
Luminance
Brightness Control
These bits control the brightness adjustment to the luminance channel. The brightness
adjustment value is a number that ranges from +63 to -64. This register is in the two’s
complement format, where bit 6 is the sign bit.
000 0000
B
HMP8112
相关PDF资料 |
PDF描述 |
|---|---|
| HMP8112ACN | NTSC/PAL Video Decoder |
| HMP8112CN | NTSC/PAL Video Decoder |
| HMP8112EVAL2 | NTSC/PAL Video Decoder |
| HMP8156EVAL2 | NTSC/PAL Video Decoder |
| HMP8156EVAL1 | NTSC/PAL Encoders |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HMP8112/8115 WAF | 制造商:Harris Corporation 功能描述: |
| HMP8112ACN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HMP8112CN | 制造商:HARRIS 制造商全称:HARRIS 功能描述:NTSC/PAL Video Decoder |
| HMP8112EVAL1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HMP8112EVAL2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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