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LTC2640 SPI mode (CPOL and CPHA)

Thread Summary

The user asked about the correct SPI mode settings for the LTC2640, specifically CPOL and CPHA. The final answer confirmed CPOL = 0 and CPHA = 0, as the clock idles low and the first edge is a rising edge. The user noted that this information should be more clearly stated in the datasheet, and the engineer agreed to consider adding it in future revisions.
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Hi,

I've been reading the LTC2640 datasheet, but it doesn't give a clue about which SPI mode should be used. In other words, it doesn't tell me about CPOL and CPHA. The timing diagram is not helpful in that respect, though it seems to suggest that the clock idles high.

So, what CPOL and CPHA should I use?

Kind regards, Samuel Lourenço