Emmc Cid Decoder Instant

: A 6-character ASCII string representing the model name (e.g., "MAG2GA"). PRV (Product Revision)

# Python 3 example: parse 128-bit CID hex string (big-endian bytes) def parse_cid(cid_hex): b = bytes.fromhex(cid_hex) if len(b) != 16: raise ValueError("CID must be 16 bytes") val = int.from_bytes(b, 'big') def get(bits_high, bits_low): width = bits_high - bits_low + 1 return (val >> bits_low) & ((1 << width) - 1) # offsets (bit positions where 0 is LSB) mid = get(127,120) oid = get(119,104) pnm = get(103,64) prv = get(63,56) psn = get(55,24) mdt = get(23,12) crc = get(11,5) end = get(0,0) # decode ascii fields oid_str = oid.to_bytes(2,'big').decode('ascii',errors='replace') pnm_str = pnm.to_bytes(5,'big').decode('ascii',errors='replace') prv_major = (prv >> 4) & 0xF prv_minor = prv & 0xF # MDT: year offset high 8 bits, month low 4 bits — many eMMC: year = 1997 + year_offset? Check spec. year = 2000 + ((mdt >> 4) & 0xFF) month = mdt & 0xF return "MID": mid, "OID": oid_str, "PNM": pnm_str, "PRV": f"prv_major.prv_minor", "PSN": psn, "MDT": "year": year, "month": month, "CRC7": crc, "end": end emmc cid decoder

For offline or batch decoding, Python scripts are ideal. Below is a simple yet complete eMMC CID decoder. : A 6-character ASCII string representing the model name (e

Alternatively, using mmc-utils :