Emmc Cid Decoder

The first byte reveals who actually manufactured the silicon. Matching the MID hex code to known JEDEC identifiers exposes the vendor: 0x15 = Samsung 0x13 = Micron 0x45 = SanDisk / Western Digital 0x90 = SK Hynix 0x70 = Kingston 0xFE = Micron / Numonyx 2. Product Name (PNM)

print(f"Raw CID: cid_hex") print(f"Manufacturer ID (MID): 0xresult['MID']:02X") print(f"Device Type (CBX): 0xresult['CBX']:02X") print(f"OEM/App ID (OID): 0xresult['OID']:02X") print(f"Product Name (PNM): pnm_bytes") print(f"Product Revision (PRV): prv_major.prv_minor") print(f"Serial Number (PSN): 0xresult['PSN']:08X") print(f"Manufacturing Date (MDT): Month: month, Year: year") print(f"CRC7: 0xresult['CRC7']:02X") emmc cid decoder

Identifies the original equipment manufacturer or application token. (Product Name) The first byte reveals who actually manufactured the silicon

To understand what an eMMC CID decoder does, it helps to look at the structure of the 128-bit register. The bits are mapped from Bit 0 to Bit 127 as follows: Field Name Size (Bits) Description (Manufacturer ID) (Product Name) To understand what an eMMC CID

The structures are similar but not identical. Both use a 128-bit CID register, but the field definitions and manufacturer ID registries differ. Always ensure you‘re using the correct specification for your device type.

cid = "15010053454d453247e3a42a080078df" decoded = decode_emmc_cid(cid) print(f"MID: 0xdecoded['MID']:02x") print(f"PNM: decoded['PNM']") print(f"PRV: 0xdecoded['PRV']:02x") print(f"PSN: decoded['PSN']")