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复用一个比特流
复用一个比特流
信号调理技术
该技术可用于任何GreenPak。
GreenPAKs are often used to transfer a data pattern. If the data is transferred from the GreenPAK or the data is transmitted along several lines from the SoC, they must be amalgamated for transmission on one line. Below is an example of the GreenPAK multiplexing a bitstream originating from the ASM output RAM.
The发电机电路如下所示。发电机实现由EN信号启用的同步数据传输的CLK线路的操作。发电机还实现了用于在一行上的发送数据的正确组合的多路复用器操作算法。
The8-bit Multiplexer电路如上所示。所有LUT都是集体配置为8位多路复用器(参见AN-1003)。Mux真相表如上所述。多路复用器根据发电机的算法输出来自ASM块输出的比特的组合,并且数据在一行到数据上传输。数据输出总是与ASM输出RAM的MSB相同。当en低时。可以通过I2C改变ASM输出RAM。还可以实现逻辑以改变ASM的状态以改变数据位。如果ASM不可用,则输入可以为数据值拉高或低。
资源
GreenPAK Designer files
- 复用一个比特流GP(5.88 KB)