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ADS8330的SPI时序咨询

Other Parts Discussed in Thread: ADS8330

你好!

ADS8330为双通道,通过写CMR(D[15:12])为0000b、0001b选择对应的通道。

在数据手册第30页,选择通道的CMR,最小SCLK需求为4,如下。

这是不是表示,在nCS为0时,只产生4个SCLK,就可以完成通道切换?

谢谢!

  • 是的, 手册在多个地方表达了这个意思.

    Manual Channel Select Mode
    The conversion cycle starts with selecting an acquisition channel by writing a channel number to the command register (CMR). This cycle time can be as short as 4 serial clocks (SCLK).