SanDisk 4GB micro SDHC Memory Card for Product Manual - Page 18

SanDisk microSD™, microSDHC™ and microSDXC™ cards OEM Product Manual 2.5 Name Table 6: CID Register Definitions Type Width CID Value Comments Manufacturer ID (MID) Binary 8 OEM/Application ID ASCII 16 (OID) Product Name (PNM) ASCII 40 Product Revision BCD 8 PRV) Serial Number (PSN) Binary 32 Reserved - 4 Manufacturer Date BCD 12 Code (MDT) CRC7 Checksum (CRC) Binary 7 Not used, always 1 - 1 0x03 SD ASCII Code 0x53, 0x44 SU64G SU32G SU16G SU08G SU04G SU02G SU01G Product Revision xx Product serial number Manufacture date (for example, April 2001=0x014) CRC7 Manufacturer IDs are controlled and assigned by the SD-3C, LLC Identifies the card OEM and/or the card contents. The OID is controlled and assigned by the SD-3C, LLC Five-character ASCII string See Section 5.2 in the SDA Physical Layer Specification, Version 3.01. 32-bit unsigned integer Manufacturing date-yym (offset from 2000) Calculated - - 3.5.3 Card Specific Data Register The Card Specific Data (CSD) Register configuration information is required to access card data. The CSD defines the data format, error correction type, maximum data access time, etc. The field structures of the CSD Register vary depending on the physical specifications and card capacity. The CSD_STRUCTURE field in the CSD Register indicates which structure version is used. Table 9 shows the version number as it relates to the CSD structure. Refer to Section 5.3.1 of the SDA Physical Layer Specification, Version 3.01 for more information. CSD_Structure Table 7: CSD Register Structure CSD Structure Version Valid for SD Card Physical Specification / Card Capacity 0 CSD Version 1.0 Version 1.01 to 1.10 Version 2.00/Standard Capacity 1 CSD Version 2.0 Version 2.00/High Capacity and Extended Capacity 2-3 Reserved - Table 8 provides an overview of the CSD Register. More field-specific information can be found in Section 5.3.2 of the SDA Physical Layer Specification, Version 3.01. January 2012 Version 2.5 © 2008 - 2012 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure agreements 13