LMK04033: LEuWire

itabi

Part Number: LMK04033

Hi,

I think that after register programming is complete the LEuWire signals should be returned to a LOW state.
(the LEuWire signal should be toggled LOW-to-HIGH-to-LOW to latch the contents)

After that when the program has ended perfectly, is it necessary to make LEuWire signal HIGH state?

If it's necessary to make it HIGH, how long is the minimal time until it's made LOW-to-HIGHW?

Best Regards,
itabi

over 8 years ago

0 Puneet Sareen over 8 years ago

TI__Expert 8865 points

Hello Itabi,
It is not necessary to make LEuWire signal HIGH after the programming is complete. You can keep it low.
Best regards
Puneet

0 itabi over 8 years ago in reply to Puneet Sareen

Expert 1295 points

Hello Puneet,

Thank you for your reply.
Is there any issue if the LEuWire signal is left high after programming is complete?

Best Regards,
itabi

0 itabi over 8 years ago in reply to itabi

Expert 1295 points

Hello Puneet,

My customer want to control the LEuWire signal using SPI Master of CPU.
Therefore it is left high without toggles of LOW-to-HIGH-to-LOW after programming is complete.
Are there any problems with this?
Or can they keep it high after toggles of LOW-to-HIGH-to-LOW？

Best Regards,
itabi

0 Puneet Sareen over 8 years ago in reply to itabi

TI__Expert 8865 points

Hello Itabi,

The rising edge of the LEuWire is latching the data. After the programming is complete, keeping LEuWire HIGH should also be no issue.

Best regards

Puneet

0 itabi over 8 years ago in reply to Puneet Sareen

Expert 1295 points

Hello Puneet,

Thank you for your instruction.

Best Regards,
itabi

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LMK04033: LEuWire