Sd card interface, Sd signals, Reference schematic – IBASE SMARC-EVK1 User Manual
Page 41: Ibase technology inc, Cmos 3.3v p42, Sd2_data3 i/o, Cmos 3.3v p33, Sd2_wp i, Cmos 3.3v write protect p35, Sd2_cd# i
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