Posts about C# and F#
A unique 32-bit unsigned integer assigned to each individual chip. [15:8] (Manufacturing Date)
To help find the right database entries or script templates for your project, let me know if you are working with a (like Samsung or Kingston) or if you need a Python script template to automate decoding. Share public link
The CID register is a non-volatile, read-only register on the eMMC chip. It is populated by the manufacturer during the factory programming phase. Once written, the core identification fields cannot be altered through standard software commands. emmc cid decoder
An is a tool—either software-based, web-based, or a manual formula—used to translate this raw hexadecimal string into human-readable information. Understanding this data is essential for hardware developers, data recovery specialists, and automotive technicians working with embedded systems like smartphones, routers, and car infotainment units. What is an eMMC CID Register?
An 8-bit field indicating the exact month and year the chip was packaged. A unique 32-bit unsigned integer assigned to each
A 6-character ASCII string representing the chip's model name. [55:48] (Product Revision)
Most Linux systems expose the CID via sysfs. Run: It is populated by the manufacturer during the
A standard eMMC CID decoder breaks down the hex string into the following fields, as defined by the JEDEC Standard : MultiCID Decoder
If you’re feeling brave, you can follow the JEDEC eMMC standard (JESD84-B51) to manually parse the bits. For example, the first two characters represent the MID, and the next two represent the OID. Common Manufacturer IDs (MID)
The eMMC CID is a goldmine of low-level hardware info. Next time you’re debugging storage performance or verifying components, decode the CID before trusting the OS-reported model string.
Alternatively, using mmc-utils :