參數(shù)資料
型號: STV0684
廠商: 意法半導(dǎo)體
英文描述: Digital Camera Processor
中文描述: 數(shù)碼相機處理器
文件頁數(shù): 17/49頁
文件大?。?/td> 487K
代理商: STV0684
17/49
STV0684
Functional Description
3.4
USB interface
The USB interface fulfills the three following functions:
The first function is to download from the camera to the PC all the various objects stored on the
mass storage media. The STV0684 uses mass storage class, Bulk Only Transfer to ensure
seamless connection with most of the Operating System on the market, including PC and Mac
platforms.
The second function is to stream concurrent audio and video through isochronous endpoints.
Once again, the STV0684 follow established and newly developed standards to ensure the
lowest burden of driver development. The STV0684 is USB Audio class and USB video class
Compliant.
The third function allows the download of the system program code, necessary to run the
application, to either serial Flash or NAND flash soldered on the main camera PCB. This
function is extremely convenient when programming the cameras on the manufacturing lines
and is not open to final users.
Features
USB 2.0 Compliant (Full speed device)
Full speed (12 Mbps) signalling bit rate
USB Audio Class Compliant
USB Video Class Compliant
USB Mass Storage Compliant, Bulk only Transfer protocol
Simultaneously accessible endpoints:
Isochronous endpoint (IN) for video
Isochronous endpoint (IN) for audio
Bulk endpoint (IN) for download
Bulk endpoint (OUT) for download
Interrupt endpoint (IN)
Control pipe
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