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參數(shù)資料
| 型號(hào)： | VL6524 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | VGA single-chip camera module |
| 中文描述： | 顯卡單芯片相機(jī)模塊 |
| 文件頁數(shù)： | 26/70頁 |
| 文件大?。?/td> | 505K |
| 代理商： | VL6524 |
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Data synchronization methods
VL6524/VS6524
26/70
8
Data synchronization methods
External capture systems can synchronize with the data output from VL6524/VS6524 in one
of two ways:
1.
Synchronization codes are embedded in the output data
2.
Via the use of two additional synchronization signals: VSYNC and HSYNC
Both methods of synchronization can be programmed to meet the needs of the host system.
8.1
Embedded codes
The embedded code sequence can be inserted into the output data stream to enable the
external host system to synchronize with the output frames. The code consists of a 4-byte
sequence starting with 0xFF, 0x00, 0x00. The final byte in the sequence depends on the
mode selected.
Two types of embedded codes are supported by the VL6524/VS6524: Mode 1 (ITU656) and
Mode 2. The bSyncCodeSetupregister is used to select whether codes are inserted or not
and to select the type of code to insert (
Table 29: Output formatter control
).
When embedded codes are selected each line of data output contains 8 additional clocks: 4
before the active video data and 4 after it.
8.1.1
Prevention of false synchronization codes
The VL6524/VS6524 is able to prevent the output of 0xFF and/or 0x00 data from being
misinterpreted by a host system as the start of synchronization data. This function is
controlled the bCodeCheckEnable register (
Table 29: Output formatter control
).
8.1.2
Mode 1(ITU656 compatible)
The structure of an image frame with ITU656 codes is shown in
Figure 13
.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| VL6524Q0MH | 制造商:STMicroelectronics 功能描述:VGA SINGLE-CHIP CAMERA MODULE - Trays |
| VL6524QOMH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VGA single-chip camera module |
| VL66 | 制造商:SPECOTECH 功能描述:Camera;IR;Weatherproof;Color;420Lines;3.7-12mmAutoIrisLens;12VDC; Black |
| VL6616 | 制造商:PRO SIGNAL 功能描述:CABLE, 4PIN MDIN PLUG, BLUE, 15M |
| VL6624 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.3 Megapixel single-chip camera module |
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