Emmc Cid Decoder • Simple

# Product Revision (PRV) prv = cid_bytes[9] rev_major = (prv >> 4) & 0x0F rev_minor = prv & 0x0F print(f"Product Revision (PRV): rev_major.rev_minor (BCD)")

But raw CID data is not human-friendly. It appears as a 32-character hexadecimal string (128 bits) that looks like gibberish: 1501004242473541021A79C0D5012B . This is where an comes into play. emmc cid decoder

# Manufacturing Date (MDT) - bits from byte 14 (nibbles) mdt_byte = cid_bytes[14] year_nibble = (mdt_byte >> 4) & 0x0F month_nibble = mdt_byte & 0x0F # Year offset from 1997 (JEDEC standard) year = 1997 + year_nibble print(f"Manufacturing Date: year:04d-month_nibble:02d (nibble year offset)") # Product Revision (PRV) prv = cid_bytes[9] rev_major