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CM6327A 参数 Datasheet PDF下载

CM6327A图片预览
型号: CM6327A
PDF下载: 下载PDF文件 查看货源
内容描述: [USB Single-Chip Audio Solution for Mono Microphone]
分类和应用:
文件页数/大小: 25 页 / 582 K
品牌: CMEDIA [ C-MEDIA ELECTRONICS ]
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CM6327A  
USB Single-Chip Audio Solution for Mono Microphone  
The figure below demonstrates a typical transaction. After every 8 bits sent by the transmitter, the receiver  
should send one bit low for positive acknowledgement or one bit high for negative acknowledgement. After  
the negative acknowledgement, a STOP or repeated START should follow. The next figure shows more  
details about the acknowledgement bit. Note that SCLK is always driven by the master.  
P
SDAT  
Sr  
MSB  
Acknowledgement  
Acknowledgment  
Signal from Receiver  
Signal from Receiver  
SCLK  
Sr  
or  
P
S
or  
Sr  
2
2
1
8
9
3 - 8  
9
1
7
ACK  
ACK  
START or Repeated  
START Condition  
STOP or Repeated  
START Condition  
Data Transfer on the MCU Interface  
The figure below shows a complete data transfer. After a START, the MCU should send a 7-bit slave address  
(7’b0111000) first, with the 8th bit denoting a read transfer when it’s high, or a write transfer when it’s low.  
The first acknowledgement always comes from the CM6327A.  
www.cmedia.com.tw  
Copyright© C-Media Electronics Inc.  
Rev. 2.0 Page 16