SanDisk 4GB micro SDHC Memory Card for Product Manual - Page 19

SanDisk microSD™, microSDHC™ and microSDXC™ cards OEM Product Manual 2.5 Field Table 8: CSD Register (CSD Version 1.0) Typical CSD Value Description CSD_STRUCTURE TAAC NSAC 1.0 1.5 msec 0 TRANS_SPEED Standard Mode 25 MHz High Performance Mode 50MHz Ultra High Speed Mode-I 104MHz CCC All (inc. WP, lock/unlock) READ_BL_LEN 2G = 0xA Up to 1G - 0x9 READ_BL_PARTIAL Yes WRITE_BLK_MISALIGN No READ_BLK_MISALIGN No DSR_IMP No - - C_SIZE 1 GB 2 GB Secured 0xF22 0xF24 VDD_R_CURR_MIN 100 mA VDD_R_CURR_MAX 80 mA VDD_W_CURR_MIN 100 mA VDD_W_CURR_MAX 80 mA C_SIZE_MULT 2G=2048 1G-1024 ERASE_BLK_EN Yes SECTOR_SIZZE 31 blocks WP_GRP_SIZE 127 sectors WP_GRP_ENABLE Yes Reserved - R2W_FACTOR X16 WRITE_BL_LEN 0x9 WRITE_BL_PARTIAL No - - FILE_FORMAT_GRP 0 COPY Has been copied PERM_WRITE_PROTECT Not protected TMP_WRITE_PROTECT Not protected FILE_FORMAT HD w/partition Reserved - CRC CRC7 - - CSD Structure Reserved Data read access-time-1 Data read access-time-2 in CLK cycles (NSAC*100) Maximum data transfer rate Card command classes Maximum read data block length Partial blocks for read allowed Write block misalignment Read block misalignment DSR implemented Reserved Device size Maximum read current @VDD min Maximum read current @VDD max Maximum write current @VDD min Maximum write current @VDD max Device size multiplier Erase single block enable Erase sector size Write protect group size Write protect group enable Reserved for MMC compatibility Write speed factor Maximum write data block length Partial blocks for write allowed Reserved File format group Copy flag (OTP) Permanent write protection Temporary write protection File format Reserved CRC Not used, always "1" January 2012 Version 2.5 © 2008 - 2012 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure agreements 14