AnsweredAssumed Answered

i.MX53 SD card I/F usage

Question asked by ko-hey on Sep 2, 2015
Latest reply on Sep 2, 2015 by ko-hey

Hi all



I want to confirm about the meaning of the word "Pull up" in Table 30-1 at following document.



In the Table 30-1, there is a column that named "Pull up".

What is this mean ?

Does the user should be pull up for each signals ?



However, in the schematics of SABRE Platform for Tablets Reference Design based on i.MX53, the SD1_DATA0, SD1_DATA1 and SD1_DATA2 signals are not pull-uped.

Because of those difference, I'm confusing.

So please let me know the meaning of the column.