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IMX6UL processor SD lines related query

Question asked by ramesh t on May 4, 2017
Latest reply on May 23, 2017 by ramesh t

Hi,

 

 Imx6UL NXP EVK board design - In SD1 CMD and DATA0 lines only have external pull-up. 

 1. Why CMD and Data0 lines has pulled-up any specific reasons related to processor ?

2. Why other Data lines doesn't have Pull-ups?

3. By processor default it has Internal pull-up, so we didn't use external pull-ups?

 

 

Thanks & Regards,

Rameshkumar

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