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SN11220APFR 参数 Datasheet PDF下载

SN11220APFR图片预览
型号: SN11220APFR
PDF下载: 下载PDF文件 查看货源
内容描述: USB音频控制器 [USB Audio Controller]
分类和应用: 控制器
文件页数/大小: 34 页 / 1512 K
品牌: SONIX [ SONIX TECHNOLOGY COMPANY ]
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Data Sheet  
USB Audio Controller  
SN11220ACF  
Bit 13 be set to “0”.  
Bit 14 selects 512 times sampling rate for I2S interface.  
Bit 15 be set to “0”.  
PCM IF Long-frame  
PCM IF Short-frame  
VII. HID bytes arrangement:  
The SN11220ACF is equipped with a special feature to let the host software to  
communicate with the USB downstream devices via the HID pipe. Using this feature,  
the system manufacturers can easily upgrade or increase the functions of their product  
by just updating the software installed on the PC. There are 16 bytes each for HID in  
and HID out. They will be explained in the paragraphs below separately.  
To receive the data from two-wire serial port and button/GPIO status from the  
SN11220ACF, there are two ways. The first is to receive the HID report of the HID  
pipe regularly. If any button/GPIO value changes or data received from the two-wire  
serial port, the new values will be sent to the host every HID interval timedefined in  
word 0x13 bit 0 to 7 and default is 10ms. The second way is to issue a HID class  
Sonix Confidential  
- 12 -  
Do not copy, reproduce, or distribute without permission  
2006 Aug 10, V1.01  
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