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Transcend microSD kit

1. SCR STRUCTURE Version number of the related SCR structure in the SD Memory Card Physical Layer Specification Valid for SD Physical Layer Specification Version 0 SCR version No 1 0 Version 1 0 1 10 1 15 reserved SCR STRUCTURE SCR structure version SD SPEC Describes the SD Memory Card Physical Layer Specification version supported by this card SD SPEC Physical Layer Specification Version Number 0 Version 1 0 1 01 1 Version 1 10 2 15 reserved Transcend Information Inc 19 Transcend Exceeding Your Expectations TS2G USD P3 2GB microSD Card Reader P3 DATA STAT AFTER ERASE Defines the data status after erase whether it is 0 or 1 the status is card vendor dependent SD SECURITY Describes the security algorithm supported by the card SD SECURITY Supported algorithm 02 mseuiy 7 security protocol 13 security protocol 2 0 re reserved Security Protocol 1 0 relates to Security Specification Version 0 96 Security Protocol 2 0 relates to Security Specification Version 1 0 1 01 Note that it is mandatory for a regular writable SD Memory Card to support Security Protocol For ROM Read Only and OTP One Time Programmable type of SD Memory Card the security feature is optional e SD BUS WIDTHS Describes all the DAT bus widths that are supported by this card SD BUS WIDTHS Supported Bus Widths Bit 0 1 bit
2. DAT CMD DATO CDIDATA P adver DATI 4 Interface T controller 5 c o T c L L3 re ee JJ 1212 Memorycore 1111 LLIJIJAILL Transcend Information Inc 2 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Bus Operating Conditions General Parameter Symbol Min Max Unit Remark Peak voltage on all lines 0 3 VDD 0 3 V All Inputs Input Leakage Current 10 10 pA All Outputs Output Leakage Current 10 10 Power Supply Voltage Parameter Symbol Min Max Unit Remark Supply voltage 2 0 3 6 V CMDO 15 55 ACMD41 commands Supply voltage specified in OCR register Except CMDO 15 55 ACMD41 commands Supply voltage differentials Vss1 552 0 3 0 3 V Power up time 250 ms From Ov to Vpp Min Note The current consumption of any card during the power up procedure must not exceed 10 mA Bus Signal Line Load The total capacitance C the CLK line of the SD Memory Card bus is the sum of the bus master capacitance the bus capacitance Cays itself and the capacitance Ccarp of each card connected to this line C Where N is the number of connected cards Requiring the sum of the host and bus capacitances not to exceed 30 pF for up to
3. 1 B 1400 1500 15107 Ct 060 0 0 050 3 C2 020 030 040 5 ca oo 5 as ECCE ae ee um 0 80 090 070 os0 090 ______ R5 070 0 80 090 Ro 0 0 080 090 _____ microSD package Dimensions Transcend Information Inc 24 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Description RDP3 is a USB2 0 Compact Card Reader It is designed for fast easy data transfer and exchange using microSD Memory Card Features e Fully Compliant with the Hi Speed USB 2 0 specification e USB powered no external power or battery needed e Support the microSD Memory Card insertion directly System Requirements e Desktop or notebook computer with a working USB port e One of the following Operating Systems o Windows Me o Windows 2000 o Windows XP o Windows Vista o OS 9 0 or later Linux Kernel 2 4 or later Placement Dimensions Milimeters 32 80 1 0 1 29 0 04 16 00 1 0 0 63 0 04 C 7 80 1 0 0 31 0 04 Transcend Information Inc Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 USB Pinouts USB differential signal The pairs are used to transmit Data Address Command Mus US
4. WRITE BLK MISALIGN O signals that crossing physical block boundaries is invalid WRITE BLK MISALIGN 1 signals that crossing physical block boundaries is allowed READ BLK MISALIGN Defines if the data block to be read by one command can be spread over more than one physical block of the memory device The size of the memory block is defined in READ BL LEN READ BLK MISALIGN O signals that crossing physical block boundaries is invalid READ BLK MISALIGN71 signals that crossing physical block boundaries is allowed DSR IMP Transcend Information Inc 12 Transcend Exceeding Your Expectations TS2G USD P3 2GB microSD Card Reader P3 Defines if the configurable driver stage is integrated on the card If set a driver stage register DSR must be implemented also perme __ DSR type no DSR implemented DSR implemented SIZE This parameter is used to compute the user s data card capacity not include the security protected area The memory capacity of the card is computed from the entries C SIZE C SIZE MULT and READ BL LEN as follows memory capacity BLOCKNR BLOCK LEN where BLOCKNR C SIZE 1 MULT MULT 2c 5128 MULT 2 C SIZE MULT 8 BLOCK LEN 2READ BL LEN READ BL LEN 12 Maximum capacity of the card compliant to SD Physical Specification Versoin1 01 shall be up to2G bytes 2s bytes to be consistent with the maximum capacity 2G bytes of SD Memory Card File System Specification
5. one is 8 bit representing the year y and the other is four bits representing the month m The field 11 8 is the month code 1 January The field 19 12 is the year code 0 2000 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 Card Specific Data register provides information on how to access the card contents The CSD defines the data format error correction type maximum data access time whether the DSR register can be used etc The programmable part of the register entries marked by W or E see below can be changed by CMD27 The type of the entries in the table below is coded as follows R readable W 1 writable once W multiple writable Name Field Width T CSD slice CSD structure CSD STRUCTURE 2 R 127 126 reserved 6 R 125 120 data read access time 1 TAAC 8 R 119 112 data read access time 2 in CLK cycles R 111 104 NSAC 100 max data transfer rate TRAN SPEED 8 R 103 96 card command classes R 95 84 max read data block length READ_BL_LEN 4 R 83 80 partial blocks for read allowed READ_BL_PARTIAL 1 R 79 79 write block misalignment R 78 78 read block misalignment R 77 77 DSR implemented DSR_IMP 1 R 76 76 reserved 2 R 75 74 device size C_SIZE R 73 62 max read current VDD min VDD_R_CURR_MIN 3 R 61 5
6. 10 cards and 40 pF for up to 30 cards the following values must not be exceeded Parameter Symbol Min Max Unit Remark Bus signal line capacitance C 100 pF fpp lt 20 MHz 7 cards Single card capacitance CcARD 10 pF Maximum signal line inductance 16 nH fep lt 20 MHz Pull up resistance inside card pin1 Rpara3 10 90 be used for card detection Note that the total capacitance of CMD and DAT lines will be consist of Chost and one Ccarp only since they are connected separately to the SD Memory Card host Parameter Symbol Min Max Unit Remark Pull up resistance 10 100 To prevent bus floating Bus signal line capacitance C 250 pF fpp 5 MHz 21 cards Transcend Information Inc 3 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Bus Signal Levels As the bus can be supplied with a variable supply voltage all signal levels are related to the supply voltage V input output i high level high leve input low level output low level To meet the requirements of the JEDEC specification JESD8 1A the card input and output voltages shall be within the following specified ranges for any Vpp of the allowed voltage range Parameter Symbol Min Max Unit Remark Output HIGH voltage Vou 0 75 Vpp V lou 100 pA Vpp min Output LOW voltage V
7. DATO Bit 1 reserved Bit 2 4 bit DATO 3 Bit 3 MSB reserved Since SD Memory Card shall support at least the two bus modes bit or 4bit width then any SD Card shall set at least bits and 2 SD BUS WIDTH 0101 Transcend Information Inc 20 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Mechanical Dimension DETAIL A c3 0 2 Be C VIEW A B1 CON T 4c T capit SURFACE DETAIL A Mechanical Description Top View Transcend Information Inc 21 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 CL Mechanical Description Bottom View Transcend Information Inc 22 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 KEEP OUT AREA Mechanical Description Keep Out Area Transcend Information Inc 23 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 _____ DIMENSIONS Notes A 1000 1100 1110 1 DIMENSIONING AND TOLERANCING PER Ai 9 60 9 70 9 80 ____ ASME 14 5 1004 a A3 780 770 780 2 DIMENSIONS ARE MILLIMETERS a4 10 075 0 80 0 85 ZAN COPLANARITY 15 ADDITIVE TO C1 MAX AG 850 THICKNESS eee A8 o0 070 90801
8. access time Transcend Information Inc 10 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 TAAC bit pane position time unit 0 1 5 1 10ns 2 100ns 321ys 4 10us 5 100us 6 1ms 7 10ms time value O reserved 121 0 2 1 2 321 3 421 5 5 2 0 6 2 5 7 3 0 8 3 5 9 4 0 A 4 5 B 5 0 C 5 5 D 6 0 E 7 0 F 8 0 reserved NSAC Defines the worst case for the clock dependent factor of the data access time The unit for NSAC is100 clock cycles Therefore the maximal value for the clock dependent part of the data access time is 25 5k clock cycles The total access time Nac as expressed in the Table 34 is the sum of TAAC 5 It has to be computed by the host for the actual clock rate The read access time should be interpreted as a typical delay for the first data bit of a data block or stream TRAN_SPEED The following table defines the maximum data transfer rate per one data line TRAN_SPEED TRAN_SPEED bit code 2 0 transfer rate unit 0 100kbit s 1 1Mbit s 2 10Mbit s 3 100Mbit s 4 7 reserved 6 3 time value O reserved 1 1 0 2 1 2 3 1 3 4 1 5 5 2 0 6 2 5 7 3 0 8 3 5 9 4 0 A 4 5 B 5 0 5 5 D 6 0 E 7 0 8 0 7 Note that for current SD Memory Cards that field must be always 0 0110 010b 032h which is equal to 25MHz the mandatory maximum operating frequency of SD Memory Card I
9. host for any CSD modification The default corresponds to the initial CSD contents Transcend Information Inc 16 Transcend Exceeding Your Expectations TS2G USD P3 2GB microSD Card Reader P3 The following table lists the correspondence between the CSD entries and the command classes A entry indicates that the CSD field affects the commands of the related command class Command classes CSD Field 0 12 14 5 6 8 9 CSD_STRUCTURE NSAC TRAN_SPEED CCC f Transcend Information Inc 17 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Command classes CSD Field READ_BL_LEN WRITE_BLK_MISALIGN READ_BLK_MISALIGN DSR_IMP C_SIZE_MANT C_SIZE_EXP VDD_R_CURR_MIN VDD_R_CURR_MAX VDD W CURR MIN VDD W CURR MAX ERASE BLK EN SECTOR SIZE WP GRP SIZE WP GRP ENABLE R2W FACTOR WRITE BL LEN WRITE BL PARTIAL FILE FORMAT GRP COPY PERM WRITE PROTECT TMP WRITE PROTECT FILE FORMAT CRC 4 RCA Register The writable 16 bit relative card address register carries the card address that is published by the card during the card identification This address is used for the addressed host card communication after the card identification pro
10. 9 max read current VDD max VDD_R_CURR_MAX 3 R 58 56 max write current VDD min VDD_W_CURR_MIN 3 R 55 53 max write current VDD max VDD_W_CURR_MAX 3 R 52 50 Transcend Information Inc 9 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Name Field Width CSD slice device size multiplier C_SIZE_MULT 49 47 erase single block enable ERASE_BLK_EN 46 erase sector size SECTOR_SIZE R write protect group size WP_GRP_SIZE R 58 52 write protect group enable WP_GRP_ENABLE 31 31 reserved for MultiMediaCard compatibility R 30 29 write speed factor R2W_FACTOR 28 zi partial blocks for write allowed WRITE BL PARTIAL TR 102121 2j n n o N reserved T PT Fie format group copy flag OTP COPY 1 R W 1 14 14 temporary protection File format FILE FORMAT 2 R W 1 11 10 CRC 5 p I ei not used always 1 5 3j 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 Version number of the related CSD structure Valid for SD Memory Card Physical Specification Version 0 CSD version No 1 0 Version 1 0 1 10 1 3 reserved CSD STRUCTURE CSD structure version TAAC Defines the asynchronous part of the data
11. B Power input Block Diagram Controller Vour 5 3 3 3 3 1 8V MicroSD slot USB Port Vus Voltage Regulator 12MHz CRYSTAL Transcend Information Inc 26 Transcend Exceeding Your Expectations TS2GUSD P3 Recommended Operating Conditions 2GB microSD Card Reader P3 SYMBOL PARAMETER MIN TYP MAX UNITS VusB Power Supply 4 5 5 0 5 5 V ToPR Operating Temperature 0 70 C DC Characteristics SYMBOL PARAMETER MIN TYP MAX UNITS Input Voltage 3 0 3 3 3 6 V Vpp18 Input Voltage 1 62 1 8 1 98 V Vour Output Voltage 3 0 3 3 3 6 V DC Electrical Characteristics of 3 3V SYMBOL PARAMETER MIN TYP MAX UNITS Input Low Voltage 0 0 8 V Input High Voltage 2 0 3 6 V VoL Output Low Voltage 0 4 V VoH Output High Voltage 2 4 V Above technical information is based on industry standard data and tested to be reliable However Transcend makes no warranty either expressed or implied as to its accuracy and assumes no liability in connection with the use of this product Transcend reserves the right to make changes in specifications at any time without prior notice Transcend Information Inc 27
12. R_SIZE see definition below If ERASE BLK EN 0 the host can erase one or multiple units of SECTOR SIZE The erase will start from the beginning of the sector that contains the start address to the end of the sector that contains the end address For example if SECTOR SIZE 31 and the host sets the Erase Start Address to 5 and the Erase End Address to 40 Physical Block 0 1 2 3 4 5 6 per CSD 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 Host Erase Address Range Erase Area m Erase Unit 4 gt Size If ERASE BLK EN 1 the host can erase one or multiple units of 512 bytes All blocks that contain data from start address to end address are erased For example if the host sets the Erase Start Address to 5 and the Erase End Address to 40 Physical Block 0 1 2 3 4 5 6 per CSD 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 Host Erase Address Range Erase Area m SECTOR SIZE The size of an erasable sector The contents of this register is a 7 bit binary coded value defining the number of write Transcend Information Inc 14 Transcend Exceeding Your Expectations TS2G USD P3 2GB microSD Card Reader P3 blocks see WRITE_BL_LEN The actual size is computed by increasing this number by one A value of zero means 1 write block 127 means 128 write blocks WP GRP SIZE The size of a write protected group The c
13. Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Description Transcend microSD card series are non volatile which means no external power is required to retain the information stored on it Besides it is also a solid state device that without moving parts to skip or break down Based on original NAND flash chip Transcend microSD offer incredible combination of fast data transfer great flexibility excellent security and incredibly small size Placement 12345678 Front Pin Definition Mode Description DAT2 O PP Data Line Bit2 Command Response Supply voltage EC Supply voltage ground DATO Data Line BitO DAT1 Data Line Bit1 CD DATS3 Card Detect Data Line Bit3 Features e ROHS compliant product e Operating Voltage 2 7 3 6V e Operating Temperature 25 85 C e Durability 10 000 insertion removal cycles e Fully compatible with SD card spec v1 1 e Comply with SD Association File System Specification e Mechanical Write Protection Switch with microSD adapter e SD Host allows MultiMediaCard upward compatibility e Form Factor 11mm x 15mm x 1mm SPI Mode Reserved Supply voltage ground Reserved S Power Supply I Input O Output PP Push Pull Transcend Information Inc Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Architecture
14. Ver 1 01 To indicate 2GByte card BLOCK LEN shall be 1024 bytes Therefore the maximal capacity which can be coded is 4096 512 1024 2G bytes Example A 32Mbyte card with BLOCK LEN 512 be coded by C SIZE MULT 3and C SIZE 2000 VDD R CURR MIN VDD W CURR MIN The maximum values for read and write currents at the minimal power supply Vpp are coded as follows VDD R CURR MIN VDD MIN code for current consumption Vpp 2 0 0 0 5 121mA 2 5mA 3 10 4 25 5 35mA 6 60 7 100 e VDD_R_CURR VDD W CURR MAX The maximum values for read and write currents at the maximal power supply Vpp are coded as follows VDD R CURR MAX VDD W CURR MAX code for current consumption 0 Vpp 0 1 1 5 2 10 3 25mA 4235mA 5 45mA 6 80 7 200 SIZE MULT This parameter is used for coding a factor MULT for computing the total device size see C SIZE Transcend Information Inc 13 Transcend Exceeding Your Expectations TS2G USD P3 2GB microSD Card Reader P3 The factor MULT is defined as 2c_sIZE_MULT 2 C SIZE MULT MULT Remark 0 2224 1 23 8 e EN EN defines the granularity of the unit size of the data to be erased The erase operation can erase either one or multiple units of WRITE_BL_LEN or one or multiple units orsectors of SECTO
15. cation ID OID 16 119 104 Product name PNM 40 103 64 Product revision PRV 8 63 56 Product serial number PSN 32 55 24 reserved 4 23 20 Manufacturing date MDT 12 19 8 CRC7 checksum CRC 7 7 1 not used always 1 1 0 0 MID An 8 bit binary number that identifies the card manufacturer The MID number is controlled defined and allocated to a SD Memory Card manufacturer by the SD Group This procedure is established to ensure uniqueness of the CID register OID A 2 ASCII string characters that identifies the card OEM and or the card contents when used as a distribution media either on ROM or FLASH cards The OID number is controlled defined and allocated to a SD Memory Card manufacturer by the SD Group This procedure is established to ensure uniqueness of the CID register 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 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 Transcend Information Inc 8 Transcend Exceeding Your Expectations TS2G USD P3 2GB microSD Card Reader P3 The manufacturing date composed of two hexadecimal digits
16. cedure The default value of the RCA register is 0 0000 The 0 0000 is reserved to set all cards into the Stand by State with CMD7 5 DSR Register Optional The 16 bit driver stage register is described in detail in Chapter 6 5 It can be optionally used to improve the bus performance for extended operating conditions depending on parameters like bus length transfer rate or number of Transcend Information Inc Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 cards The CSD register carries the information about the DSR register usage The default value of the DSR register is 0x404 6 SCR Register In addition to the CSD register there is another configuration register that named SD CARD Configuration Register SCR SCR provides information on SD Memory Card s special features that were configured into the given card The size of SCR register is 64 bit This register shall be set in the factory by the SD Memory Card manufacturer The following table describes the SCR register content Description Field Width Cell SCR Slice SCR Structure SCR_STRUCTURE 4 R 63 60 SD Memory Card Spec Version SD_SPEC R 59 56 data status after erases DATA STAT AFTER ERASE 1 R 55 55 SD Security Support SD SECURITY 3 R 54 52 DAT Bus widths supported SD BUS WIDTHS 4 R 51 48 reserved 16 R 47 32 reserved for manufacturer usage 32 R 31 0
17. ers 1 OCR register The 32 bit operation conditions register stores the Vpp voltage profile of the card In addition this register includes a status information bit This status bit is set if the card power up procedure has been finished The OCR register shall be implemented by the cards which do not support the full operating voltage range of the SD Memory Card bus or if the card power up extends the definition in the timing diagram OCR bit position VDD voltage window reserved 5 reserved 6 reserved 7 reserved 8 2 0 2 1 9 2 1 2 2 10 2 2 2 3 ao 2428 13 2 5 2 6 14 2 6 2 7 15 2 7 2 8 16 2 8 2 9 17 2 9 3 0 18 3 0 3 1 19 3 1 3 2 21 3 3 3 4 22 3 4 3 5 23 3 5 3 6 24 30 reserved card power up status bit busy 1 Transcend Information Inc 7 Transcend Exceeding Your Expectations TS2G USD P3 2GB microSD Card Reader P3 A voltage range is not supported if the corresponding bit value is set to LOW As long as the card is busy the corresponding bit 31 is set to LOW 2 CID Register The Card IDentification CID register is 128 bits wide It contains the card identification information used during the card identification phase Every individual flash card shall have a unique identification number The structure of the CID register is defined in the following paragraphs Name Field Width CID slice Manufacturer ID MID 8 127 120 OEM Appli
18. n High Speed mode that field must be always 0_1011_010b 05Ah which is equal to 50MHz And when the timing mode returns to the default by CMD6 or CMDO command its value will be 032h CCC The SD Memory Card command set is divided into subsets command classes The card command class register CCC defines which command classes are supported by this card A value of 1 in a CCC bit means that the corresponding Transcend Information Inc dil Transcend Exceeding Your Expectations TS2G USD P3 2GB microSD Card Reader P3 command class is supported CCC bit Supported card command class 0 class 0 1 class 1 11 class 11 READ BL LEN The maximum read data block length is computed as 2READ BL LEN The maximum block length might therefore be in the range 512 2048 bytes see Chapter 4 11 for details Note that in SD Memory Card the WRITE BL LEN is always equal to READ BL LEN READ BL LEN Block length Remark 0 8 reserved 9 2 512 Bytes 11 211 2048 Bytes 12 15 reserved READ BL PARTIAL always z 1 in SD Memory Card Partial Block Read is always allowed in SD Memory Card It means that smaller blocks can be used as well The minimum block size will be one byte WRITE BLK MISALIGN Defines if the data block to be written by one command can be spread over more than one physical block of the memory device The size of the memory block is defined in WRITE BL LEN
19. oL 0 125 V lo 100 pA Vpp min Input HIGH voltage 0 625 Vpp 0 3 V Input LOW voltage Vit Vss 0 3 0 25 Vpp V Transcend Information Inc 4 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Bus Timing Shaded areas are not valid Parameter Symbol Min Max Unit Remark Clock CLK All values are referred to min Vin and max Vi Clock frequency Data Transfer Mode frp 0 25 MHz lt 100 pF 7 cards Clock frequency Identification Mode fop 0 400 KHz lt 250 pF 21 cards The low freq is required for MultiMediaCard compatibility Clock low time tw 10 ns C x 100 pF 7 cards 50 ns C lt 250 pF 21 cards Clock high time twa 10 ns x 100 pF 7 cards 50 ns C 250 pF 21 cards Clock rise time 10 ns x 100 pF 7 cards 50 ns C lt 250 pF 21 cards Clock fall time 10 ns C lt 100 pF 7 cards 50 ns C x 250 pF 21 cards Inputs CMD DAT referenced to CLK Input set up time tisu 5 ns C lt 25 pF 1 cards Input hold time tiu 5 ns C lt 25 pF 1 cards Outputs CMD DAT referenced to CLK Output Delay time topi 0 14 ns C x 25 pF 1 cards Transcend Information Inc 5 Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Reliability and Durability Tempera
20. ontents of this register is a 7 bit binary coded value defining the number of erase sectors see SECTOR SIZE The actual size is computed by increasing this number by one A value of zero means 1 erase sector 127 means 128 erase sectors WP GRP ENABLE A value of 0 means no group write protection possible R2W FACTOR Defines the typical block program time as a multiple of the read access time The following table defines the field format R2W FACTOR Multiples of read access time 1 2 write half as fast as read 4 8 16 32 reserved om rp A WRITE BL LEN The maximum write data block length is computed as 2wRITE BL LEN The maximum block lengthmight therefore be in the range from 512 up to 2048 bytes Write Block Length of 512 bytes isalways supported Note that in SD Memory Card the WRITE BL LEN is always equal to READ BL LEN WRITE BL LEN length Remark 0 8 reserved 9 29 512 bytes WRITE BL LEN Block length Remark 11 211 2048 Bytes 12 15 reserved Transcend Information Inc 15 Transcend Exceeding Your Expectations TS2G USD P3 2GB microSD Card Reader P3 WRITE_BL_PARTIAL Defines whether partial block sizes can be used in block write commands WRITE_BL_PARTIAL 0 means that only the WRITE BL LEN block size and its partial derivatives in resolution of units of 512 bytes can be used f
21. or block oriented data write WRITE BL PARTIAL 1 means that smaller blocks be used as well The minimum block sizeis one byte FILE FORMAT GRP Indicates the selected group of file formats This field is read only for ROM COPY Defines if the contents is original 0 or has been copied 1 The COPY bit for OTP and MTPdevices sold to end consumers is set to 1 which identifies the card contents as a copy The COPY bit is an one time programmable bit PERM WRITE PROTECT Permanently protects the whole card content against overwriting or erasing all write and erase commands for this card are permanently disabled The default value is 0 i e not permanently write protected TMP WRITE PROTECT Temporarily protects the whole card content from being overwritten or erased all write and erase commands for this card are temporarily disabled This bit can be set and reset The default value is 0 i e not write protected FILE FORMAT Indicates the file format on the card This field is read only for ROM The following formats are defined POEM AT FILE FORMAT upe GRP 0 0 Hard disk like file system with partition table 0 1 DOS FAT floppy like with boot sector only no partition table 0 2 Universal File Format 0 3 Others Unknown 1 0 1 2 3 Reserved CRC The CRC field carries the check sum for the CSD contents The checksum has to be recalculated by the
22. ture Operation 25 C 85 C Storage 40 C 168h 85 C 500h Junction temperature max 95 C Moisture and corrosion Operation 25 C 95 rel humidity Storage 40 C 93 rel hum 500h Salt Water Spray 3 NaCl 35C 24h acc MIL STD Method 1009 Durability 10000 mating cycles Bending 10N Torque 0 10N m 2 5deg max Drop test 1 5m free fall UV light exposure UV 254nm 15Ws cm according to 150 7816 1 Visual inspection Shape and form No warppage no mold skin complete form no cavities surface smoothness lt 0 1 mm cm within contour no cracks no pollution fat oil dust etc Above technical information is based on standard data and tested to be reliable However Transcend makes no warranty either expressed or implied as to its accuracy and assumes no liability in connection with the use of this product Transcend reserves the right to make changes in specifications at any time without prior notice Transcend Information Inc Transcend Exceeding Your Expectations TS2GUSD P3 2GB microSD Card Reader P3 Register Information Within the card interface six registers are defined OCR CID CSD RCA DSR and SCR These can be accessed only by corresponding commands see Chapter 4 7 The OCR CID CSD and SCR registers carry the card content specific information while the RCA and DSR registers are configuration registers storing actual configuration paramet

Transcend microSD kit

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