User manual TRANSCEND MICROSDHC CARD DATASHEET

[. . . ] The given minimum frequency range is for cases were continues clock is required Transcend Information Inc. 7 microSDHC Card series · Bus Timing (High Speed Mode) High Capacity microSD Class10 Card Parameter Clock frequency Data Transfer Mode Clock low time Clock high time Clock rise time Clock fall time Inputs CMD, DAT (referenced to CLK) Input set-up time Input hold time Outputs CMD, DAT (referenced to CLK) Symbol fPP tWL tWH tTLH tTHL tISU tIH Min 0 7 7 Max. 50 Unit MHz ns ns Remark CCARD 10 pF, (1 card) CCARD 10 pF, (1 card) CCARD 10 pF, (1 card) CCARD 10 pF, (1 card) CCARD 10 pF, (1 card) CCARD 10 pF, (1 card) CCARD 10 pF, (1 card) Clock CLK (All values are referred to min (VIH) and max (VIL) 3 3 6 2 ns ns ns ns Transcend Information Inc. 8 microSDHC Card series Output Delay time during Data Transfer Mode Output Hold time tODLY tOH 2. 5 High Capacity microSD Class10 Card 14 40 ns ns pF CL 40 pF, (1 card) CL 40 pF, (1 card) (1 card) Total System capacitance for each line1 CL 1) In order to satisfy severe timing, host shall drive only one card. Transcend Information Inc. 9 microSDHC Card series Reliability and Durability Temperature Operation: -25° / 85° C C High Capacity microSD Class10 Card Storage: -40° (168h) / 85° (500h) C C Junction temperature: max. 95° C Moisture and corrosion Operation: 25° / 95% rel. hum. /500h C Salt Water Spray: 3% NaCl/35C; 24h acc. MIL STD Method 1009 Durability Bending Torque Drop test Visual inspection Shape and form 10. 000 mating cycles; 10N 0. 15N. m or +/-2. 5 deg 1. 5m free fall No warp page; no mold skin; complete form; no cavities surface smoothness <= -0. 1 mm/cm² within contour; no cracks; no pollution (fat, oil dust, etc. ) Transcend Information Inc. 10 microSDHC Card series Register Information High Capacity microSD Class10 Card Within the card interface six registers are defined: OCR, CID, CSD, RCA, DSR and SCR. [. . . ] SD-3C, LLC is a limited liability company established by Matsushita Electric Industrial Co. Ltd. , SanDisk Corporation and Toshiba Corporation. · PNM The product name is a string, 5 ASCII characters long. · PRV The product revision is composed of two Binary Coded Decimal (BCD) digits, four bits each, representing an "n. m" Transcend Information Inc. 12 microSDHC Card series High Capacity microSD Class10 Card revision number. The "n" is the most significant nibble and "m" is the least significant nibble. As an example, the PRV binary value field for product revision "6. 2" will be: 0110 0010 · PSN The Serial Number is 32 bits of binary number. · MDT The manufacturing date composed of two hexadecimal digits, one is 8 bit representing the year(y) and the other is four bits representing the month(m). The "m" field [11:8] is the month code. The "y" field [19:12] is the year code. As an example, the binary value of the Date field for production date "April 2001" will be: 00000001 0100. · CRC CRC7 checksum (7 bits). 3. CSD Register The following sections describe the CSD fields and the relevant data types for the High Capacity SD Memory Card. CSD Version 2. 0 is applied to only the High Capacity SD Memory Card. The field name in parenthesis is set to fixed value and indicates that the host is not necessary to refer these fields. The fixed values enables host, which refers to these fields, to keep compatibility to CSD Version 1. 0. The Cell Type field is coded as follows: R = readable, W(1) = writable once, W = multiple writable. Transcend Information Inc. 13 microSDHC Card series High Capacity microSD Class10 Card The CSD Register Fields (CSD Version 2. 0) The following sections describe the CSD fields and the relevant data types. If not explicitly defined otherwise, all bit strings are interpreted as binary coded numbers starting with the left bit first. · CSD_STRUCTURE Field structures of the CSD register are different depend on the Physical Specification Version and Card Capacity. The CSD_STRUCTURE field in the CSD register indicates its structure version. If set, a driver stage register (DSR)must be implemented also. Transcend Information Inc. 16 microSDHC Card series High Capacity microSD Class10 Card · C_SIZE This field is expanded to 22 bits and can indicate up to 2 TBytes (It is the same as the maximum memory space specified by a 32-bit block address. ) This parameter is used to calculate the user data area capacity in the SD memory card (not include the protected area). The user data area capacity is calculated from C_SIZE as follows: memory capacity = (C_SIZE+1) * 512K byte As the maximum capacity of the Physical Layer Specification Version 2. 00 is 32 GB, the upper 6 bits of this field shall be set to 0. · ERASE_BLK_EN This field is fixed to 1, which means the host can erase one or multiple units of 512 bytes. · SECTOR_SIZE This field is fixed to 7Fh, which indicates 64 KBytes. This value does not relate to erase operation. Version 2. 00 cards indicates memory boundary by AU size and this field should not be used. · WP_GRP_SIZE This field is fixed to 00h. The High Capacity SD Memory Card does not support write protected groups. · WP_GRP_ENABLE This field is fixed to 0. The High Capacity SD Memory Card does not support write protected groups. · R2W_FACTOR This field is fixed to 2h, which indicates 4 multiples. Write timeout can be calculated by multiplying the read access time and R2W_FACTOR. However, the host should not use this factor and should use 250 ms for write timeout · WRITE_BL_LEN This field is fixed to 9h, which indicates WRITE_BL_LEN=512 Byte. · WRITE_BL_PARTIAL This field is fixed to 0, which indicates partial block read is inhibited and only unit of block access is allowed. · FILE_FORMAT_GRP Transcend Information Inc. 17 microSDHC Card series This field is set to 0. [. . . ] The other combination of conditions is not allowed. Essential conditions to indicate Version 1. 01 Card (SD_SPEC=0 and SD_SPEC3=0) (1)The card does not support CMD6 (2)The card does not support CMD8 (3) User area capacity shall be up to 2GB Essential conditions to indicate Version 1. 10 Card (SD_SPEC=1 and SD_SPEC3=0) (1) The card shall support CMD6 (2) The card does not support CMD8 (3) User area capacity shall be up to 2GB Essential conditions to indicate Version 2. 00 Card (SD_SPEC=2 and SD_SPEC3=0) (1) The card shall support CMD6 (2) The card shall support CMD8 (3) The card shall support CMD42 (4) User area capacity shall be up to 2GB (SDSC) or 32GB (SDHC) (5) Speed Class shall be supported (SDHC) Essential conditions to indicate Version 3. 00 Card (SD_SPEC=2 and SD_SPEC3=1) (1) The card shall support CMD6 (2) The card shall support CMD8 (3) The card shall support CMD42 (4) User area capacity shall be up to 2GB (SDSC) or 32GB (SDHC) User area capacity shall be more than or equal to 32GB and up to 2TB (SDXC) Transcend Information Inc. 21 microSDHC Card series (5) Speed Class shall be supported (SDHC or SDXC) High Capacity microSD Class10 Card A card supports any of following functions shall satisfy essential conditions of Version 3. 00 Card (1) Speed Class supported under the conditions defined in Ver3. 00 (2) UHS-I supported card (3) CMD23 supported card Application Notes: When checking SD_SPEC version in SCR, the host shall not forget that higher SD_SPEC version may be specified in future. It is important to keep compatibility for future version. · DATA_STAT_AFTER_ERASE Defines the data status after erase, whether it is `0' or `1' (the status is card vendor dependent). · SD_SECURITY This field indicates CPRM Security Specification Version for each capacity card. The definition of Protected Area is different in each capacity card. [. . . ]