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參數(shù)資料
| 型號(hào)： | GS1531 |
| 廠商： | Gennum Corporation |
| 英文描述： | GS1531 HD-LINX-TM II Multi-Rate Serializer |
| 中文描述： | GS1531的HD - LINX進(jìn)程，商標(biāo)第二多速率串行器 |
| 文件頁數(shù)： | 28/49頁 |
| 文件大?。?/td> | 500K |
| 代理商： | GS1531 |
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GS1531 Data Sheet
30573 - 4
July 2005
28 of 49
4.5 Data-Through Mode
The GS1531 may be configured by the application layer to operate as a simple
parallel-to-serial converter. In this mode, the device presents data to the output
buffer without performing any scrambling or encoding.
Data-through mode is enabled only when both the SMPTE_BYPASS and
DVB_ASI pins are set LOW.
4.6 Additional Processing Functions
The GS1531 contains an additional data processing block which is available in
SMPTE mode only, see
SMPTE Mode on page 25
.
4.6.1 Input Data Blank
The video input data may be 'blanked' by the GS1531. In this mode, all input video
data except TRS words are set to the appropriate blanking levels by the device.
Both the horizontal and vertical ancillary data spaces will also be set to blanking
levels.
This function is enabled by setting the BLANK pin LOW.
4.6.2 Automatic Video Standard Detection
The GS1531 can detect the input video standard by using the timing parameters
extracted from the received TRS ID words or supplied H, V, and F timing signals,
see
Internal Flywheel on page 25
. This information is presented to the host
interface via the VIDEO_STANDARD register (
Table 4-2
).
Total samples per line, active samples per line, total lines per field/frame and active
lines per field/frame are also calculated and presented to the host interface via the
RASTER_STRUCTURE registers (
Table 4-3
). These line and sample count
registers are updated once per frame at the end of line 12. This is in addition to the
information contained in the VIDEO_STANDARD register.
After device reset, the four RASTER_STRUCTURE registers default to zero.
Table 4-2: Host Interface Description for Video Standard Register
Register Name
Bit
Name
Description
R/W
Default
VIDEO_STANDARD
Address: 004h
15
–
Not Used.
–
–
14-10
VD_STD[4:0]
Video Data Standard (see
Table 4-4
).
R
0
9
INT_PROG
Interlace/Progressive: Set LOW if detected video
standard is PROGRESSIVE and is set HIGH if it is
INTERLACED.
R
0
8
STD_LOCK
Standard Lock: Set HIGH when flywheel has
achieved full synchronization.
R
0
7-0
–
Not Used.
–
–
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| GS1531-CB | GS1531 HD-LINX-TM II Multi-Rate Serializer |
| GS1531-CBE2 | GS1531 HD-LINX-TM II Multi-Rate Serializer |
| GS1532 | HD-LINX II Voltage Controlled Oscillator |
| GS1560 | HD-LINX II Voltage Controlled Oscillator |
| GS9060 | HD-LINX II Voltage Controlled Oscillator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GS1531_08 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Multi-Rate Serializer with ClockCleaner |
| GS1531-CB | 制造商:Semtech Corporation 功能描述:Serializer 100-Pin BGA 制造商:Semtech Corporation 功能描述:HD/SD/ASI Transmitter |
| GS1531CBE2 | 制造商:Gennum Corporation 功能描述:SERIALISER HD/SD/ASI W/DRIVER 100BGA |
| GS1531-CBE2 | 制造商:Gennum Corporation 功能描述:Serializer 100-Pin BGA |
| GS1531CBE3 | 制造商:Gennum Corporation 功能描述:SERIALISER HD/SD/ASI W/DRIVER 100BGA |
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