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參數資料
| 型號： | GS9092 |
| 廠商： | Gennum Corporation |
| 英文描述： | GS9092 GenLINX-R III 270Mb/s Serializer for SDI and DVB-ASI |
| 中文描述： | GS9092 GenLINX - R的第三270Mb / s的串行SDI和DVB - ASI在內 |
| 文件頁數： | 28/58頁 |
| 文件大?。?/td> | 608K |
| 代理商： | GS9092 |
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GS9092 Data Sheet
28202 - 2
September 2005
28 of 58
3.3.3 Ancillary Data Insertion Mode
The internal FIFO is in ancillary data insertion mode when the application layer sets
the FIFO_EN and IOPROC_EN pins HIGH, and the FIFO_MODE[1:0] bits in the
IOPROC_DISABLE register are configured to 10b.
In this mode, the FIFO is divided into two separate blocks of 1024 words each. To
insert ancillary data into the video stream, the internal PLL must be locked to the
input PCLK.
Once the FIFO enters ancillary data insertion mode, there is a 2200 PCLK cycle
(82us) initialization period before the application layer may write ancillary data into
the FIFO. The device will set the ANC_FIFO_READY bit HIGH (bit 12 of address
06h) once this initialization period has passed.
The following steps, which may be completed in any order, are required before
ancillary data is inserted into the data stream:
1. Starting at the first address of the FIFO (address 02Ch), the application layer
must program the contents of the ancillary data packets to be inserted into the
FIFO via the host interface. A maximum of 1024 8-bit words are allowed. The
entire packet, including the ancillary data flag (ADF), data identification (DID),
secondary data identification (SDID) if applicable, data count (DC), and
checksum word must be written into memory. The user may write an arbitrary
value (FFh for example) for the checksum word, which will act as a place
holder. The actual checksum will be calculated and inserted by the device
prior to insertion into the data stream. The GS9092 will also generate bit 8 and
9 for all words in the FIFO (as described in SMPTE 291M) prior to insertion.
Note that no ancillary data can be written to the FIFO until the device has set
the ANC_FIFO_READY bit HIGH.
2. The number of words to be inserted (i.e. the number of words written into the
FIFO), must be programmed in the ANC_WORDS[10:0] register by the
application layer. If the total number of words to be inserted exceeds the
available space, the ancillary data will be inserted up to the point where the
available space is filled.
3. The line(s) in which the packets are to be inserted must be programmed into
the ANC_LINE_A[10:0] and/or ANC_LINE_B[10:0] registers. Up to two lines
per frame may have ancillary data packets inserted in them. If only one line
number register is programmed, ancillary data packets will be inserted in one
line per frame only. The GS9092 will insert ancillary data into the designated
line(s) during every frame.
4. The application layer must set the ANC_SAV bit of the IO_CONFIG register
(address 05h) either HIGH or LOW. By default, the ANC_SAV bit will be LOW
and the ancillary data will be inserted into the horizontal ancillary data space at
the first available location after the EAV. If the ANC_SAV bit is set HIGH, the
ancillary data is written instead immediately after the SAV on the line
programmed. If an active video line is programmed into the
ANC_LINE_A[10:0] or ANC_LINE_B[10:0] register, the active video data will
be overwritten when ANC_SAV is set HIGH.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| GS9092A | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GS9092A GenLINX-R III 270Mb/s Serializer for SDI and DVB-ASI |
| GS9092A_10 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GenLINX III 270Mb/s Serializer for SDI and DVB-ASI |
| GS9092ACNE3 | 功能描述:RF, RFID, WIRELESS RoHS:是 類別:集成電路 (IC) >> 接口 - 串行器，解串行器 系列:* 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 功能:解串器 數據速率:2.5Gbps 輸入類型:串行 輸出類型:并聯 輸入數:- 輸出數:24 電源電壓:1.8 V ~ 3.3 V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應商設備封裝:64-TQFP-EP（10x10） 包裝:管件 |
| GS9092ACNTE3 | 制造商:Semtech Corporation 功能描述:270Mb/s Transmitter for SDI & ASI |
| GS9092CNE3 | 制造商:Gennum Corporation 功能描述: |
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