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AM3354: GP EVM MMC interface

Part Number: AM3354

Hi,

I have simple question regarding MMC I/F of AM335x GP EVM board.

According to rev.1.6a gpevm zczbaseboard schematic. there are some resistors between AM335x(U2) and SD card slot(J13). There are R396, R397, R398, R399,R400 and R401.

What for are these resistors insterted in MMC lines? Are there for improving impedence matching? If yes,  should be these resistors placed in near AM335x(U2)?

Please advise me.

Best regards,

Michi