LMX2572LPEVM: About SCK in serial interface

ishii.takeshi

Part Number: LMX2572LPEVM
Other Parts Discussed in Thread: USB2ANY

Hello.
I have a question about the SCK on the serial interface.
In the datasheet it is 24 clocks, but when I measure it, it looks like 23.5 clocks.
Is this behavior correct?

over 2 years ago

0 Noel Fung over 2 years ago

TI__Guru** 121440 points

Hi Takeshi-san,

That is correct. USB2ANY has the SPI default HIGH, so the SCK will not return to LOW after the 24th rising edge.

If SPI is default to LOW, then the 24th clock will return to LOW in the second half cycle.

0 ishii.takeshi over 2 years ago in reply to Noel Fung

Prodigy 90 points

Thanks for the quick response.
I understood very well.

Clock & timing

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LMX2572LPEVM: About SCK in serial interface