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IMX UL boot configuration pin status for NAND boot media

Question asked by vineeth113 754 on Feb 3, 2017
Latest reply on May 13, 2018 by Bruno Ferrrezi



Am designing i.MX UL processor based board. The media is NAND Flash.


I got the following info from the Ref manual of UL processor.


There are 24 Boot Configuration Pins(BOOT_CFG1[7:0],BOOT_CFG2[7:0],BOOT_CFG3[7:0]). I found only the status of BOOT_CFG1[7:0] for NAND Boot. 

Please let me know the what should be the status(Pull up/Pull down) of BOOT_CFG2[7:0],BOOT_CFG3[7:0] during board boot.