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AM3354: MMC2 pinmux issue

vamsi dhanunjay
Prodigy 130 points
Part Number: AM3354

Hi,

i am using claixtro SOM. In with MMC2 is used connected to eMMC. In the usermanual it is mentioned that

MMC2_CLK (V12)

MMC2_CMD(T13)

MMC2_DATA3(H16)

MMC2_DATA2(K15)

MMC2_DATA1(J18)

MMC2_DATA0(J15)

assigned to respective pads. but same thing i tried to assign in pin mux tool , but it is giving pin conflict error for MMC2_CLK,MMC2_CMD stated that these pins are not a vaild io set MMC2IOSet_3. But my calixtro board is booting with eMMC. can we assign the pins in hardware even if it is not valid io set. please any one help me on this.

  • 0
    TI__Guru**** 393215 points
    Hi,

    I am not sure how your board boots from eMMC, but I am absolutely sure that there is no eMMC boot option from MMC2. Please check with your board manufacturer.
  • 0
    TI__Guru*** 125430 points

    vamsi dhanunjay said:
    can we assign the pins in hardware even if it is not valid io set.

    We don't guarantee the interface will adhere to our published timing specifications when you are not using a valid io set.  While it will "mostly work", you'll likely have some issues at the corners of process and/or temperature.