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Table of Contents
iv SanDisk miniSD Card Product Manual, Rev. 1.1 © 2003 SANDISK CORPORATION
3.5.8. SD Card Registers in SPI Mode............................................................................................. 3-25
3.6. Data Interchange Format and Card Sizes.......................................................................................... 3-25
4. miniSD Card Protocol Description..................................................................................................................... 4-1
4.1. SD Bus Protocol................................................................................................................................ 4-1
4.2. Protocol’s Functional Description..................................................................................................... 4-4
4.3. Card Identification Mode .................................................................................................................. 4-5
4.3.1. Reset........................................................................................................................................ 4-6
4.3.2. Operating Voltage Range Validation ...................................................................................... 4-7
4.3.3. Card Identification Process ..................................................................................................... 4-8
4.4. Data Transfer Mode .......................................................................................................................... 4-8
4.4.1. Wide Bus Selection/Deselection ............................................................................................. 4-10
4.4.2. Data Read Format ................................................................................................................... 4-10
4.4.3. Data Write Format .................................................................................................................. 4-11
4.4.4. Write Protect Management ..................................................................................................... 4-13
4.4.5. Application Specific Commands............................................................................................. 4-13
4.5. Clock Control .................................................................................................................................... 4-14
4.6. Cyclic Redundancy Codes (CRC)..................................................................................................... 4-15
4.7. Error Conditions................................................................................................................................ 4-17
4.7.1. CRC and Illegal Command ..................................................................................................... 4-17
4.7.2. Read, Write and Erase Time-out Conditions .......................................................................... 4-17
4.8. Commands......................................................................................................................................... 4-18
4.8.1. Command Types ..................................................................................................................... 4-18
4.8.2. Command Format.................................................................................................................... 4-18
4.8.3. Command Classes ................................................................................................................... 4-18
4.8.4. Detailed Command Description .............................................................................................. 4-20
4.9. Card State Transition Table............................................................................................................... 4-24
4.10. Responses........................................................................................................................................ 4-25
4.11. Timings ........................................................................................................................................... 4-27
4.11.1. Command and Response ....................................................................................................... 4-28
4.11.2. Data Read.............................................................................................................................. 4-29
4.11.3. Data Write............................................................................................................................. 4-29
4.11.4. Timing Values....................................................................................................................... 4-32
5. SPI Protocol Definition ...................................................................................................................................... 5-1
5.1. SPI Bus Protocol ............................................................................................................................... 5-1
5.1.1. Mode Selection ....................................................................................................................... 5-1
5.1.2. Bus Transfer Protection .......................................................................................................... 5-2
5.1.3. Data Read................................................................................................................................ 5-2
5.1.4. Data Write............................................................................................................................... 5-3
5.1.5. Erase and Write Protect Management..................................................................................... 5-4
5.1.6. Read CID/CSD Registers........................................................................................................ 5-5
5.1.7. Reset Sequence ....................................................................................................................... 5-5
5.1.8. Clock Control.......................................................................................................................... 5-5
5.1.9. Error Conditions...................................................................................................................... 5-6
5.1.10. Memory Array Partitioning................................................................................................... 5-7
5.1.11. Card Lock/Unlock................................................................................................................. 5-7
5.1.12. Application Specific Commands...........................................................................................5-7
5.1.13. Copyright Protection Commands.......................................................................................... 5-7
5.2. SPI Command Set ............................................................................................................................. 5-7
5.2.1. Command Format.................................................................................................................... 5-7
5.2.2. Command Classes ................................................................................................................... 5-8
- Product Manual 1
- Table of Contents 3
- Table of Contents 5
- 1.1. Scope 8
- 1.2. Product Models 8
- 1.3. System Features 8
- 1.4. miniSD Card Standards 9
- 1.5. Functional Description 9
- 2. Product Specifications 19
- 2.4. System Performance 20
- 2.6. Physical Specifications 21
- 3.2. SD Bus Topology 29
- 3.3. SPI Bus Topology 31
- 3.4. Electrical Interface 33
- 3.4.5. Bus Timing 36
- Table 3-6. Bus Timing 36
- 3.5. miniSD Card Registers 37
- 8 7 4 3 38
- Physical Specification 41
- Version 41
- 1-3 Reserved 41
- READ_BL_LEN 43
- C_SIZE_MULT+2 44
- WRITE_BL_LEN 45
- Prot 2, Spec V1.01 46
- 4.1. SD Bus Protocol 53
- SPI Operation 58
- CS Asserted ("0") 58
- Note that ACMD41 59
- 4.4. Data Transfer Mode 60
- 4.5. Clock Control 66
- 100KHz-400KHz Clocks 67
- 4.7. Error Conditions 69
- 4.8. Commands 70
- 4.10. Responses 77
- 4.11. Timings 79
- 4.11.4. Timing Values 84
- Table 4-33. Timing Values 84
- 5. SPI Protocol Definition 85
- 5.2. SPI Command Set 91
- 5.3. Card Registers 100
- 5.4. SPI Bus Timing Diagrams 100
- 5.7. Bus Timing 103
- Ordering Information 106
- SanDisk Worldwide Web Site 107
- Technical Support Services 108
- SanDisk Corporate 109
- Headquarters 109
- Appendix D. Limited Warranty 111
- Limited Warranty 112
- Limited Warranty 113
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