1. Introduction to the SD Card . 1-11.1. Scope 1-21.2. Product Models .. 1-21.3. System Features.. 1-21.4. SD Card Standard.. 1-31.5. Functional Des cription . 1-31.5.1. Flash Technology Independence 1-41.5.2. Defect and Error Management 1-41.5.3. Copyright Protection 1-41.5.4. Endurance . 1-51.5.5. Wear Leveling 1-51.5.6. Using the Erase Command 1-51.5.7. Automatic Sleep Mode 1-51.5.8. Hot Insertion 1-51.5.9. SD Card—SD Bus Mode .. 1-61.5.9.1. SD Card Standard Compliance 1-61.5.9.2. Negotiating Operation Conditions . 1-61.5.9.3. Card Acquisition and Identification.. 1-61.5.9.4. Card Status. 1-61.5.9.5. Memory Array Partitioning 1-71.5.9.6. Read and Write Operations 1-91.5.9.7. Data Transfer Rate . 1-91.5.9.8. Data Protection in the Flash Card .. 1-101.5.9.9. Erase . 1-101.5.9.10. Write Protection 1-101.5.9.11. Copy Bit 1-101.5.9.12. The CSD Register 1-101.5.10. SD Card—SPI Mode. 1-101.5.10.1. Negotiating Operating Conditions .. 1-111.5.10.2. Card Acquisition and Identification 1-111.5.10.3. Card Status.. 1-111.5.10.4. Memory Array Partitioning. 1-111.5.10.5. Read and Write Operations. 1-111.5.10.6. Data Transfer Rate .. 1-111.5.10.7. Data Protection in the SD Card. 1-111.5.10.8. Erase .. 1-111.5.10.9. Write Protection 1-121.5.10.10. Copyright Protection 1-122. Product Specifications 2-12.1. System Environmental Specifications.. 2-12.2. Reliability and Durability 2-12.3. Typical Card Power Requirements. 2-22.4. System Performance. 2-22.5. System Reliability and Maintenance . 2-22.6. Physical Specifications 2-33. SD Card Interface Des cription 3-13.1. General Des cription of Pins and Registers. 3-13.1.1. Pin Assignments in SD Card Mode . 3-1Table of Contentsiv SanDisk Secure Digital (SD) Card Product Manual, Rev. 1.9 . 2003 SANDISK CORPORATION3.1.2. Pin Assignments in SPI Mode. 3-23.2. SD Bus Topology.. 3-33.2.1. Power Protection 3-53.3. SPI Bus Topology .. 3-53.3.1. Power Protection 3-63.4. Electrical Interface . 3-63.4.1. Power-up .. 3-73.4.2. Bus Operating Conditions. 3-83.4.3. Bus Signal Line Load.. 3-83.4.4. Bus Signal Levels.. 3-93.4.5. Bus Timing.. 3-103.5. SD Card Registers .. 3-113.5.1. Operating Conditions Register (OCR) 3-113.5.2. Card Identification (CID) Register 3-123.5.3. CSD Register.. 3-133.5.4. SCR Register.. 3-193.5.5. Status Register 3-203.5.6. SD Status.. 3-233.5.7. RCA Register .. 3-233.5.8. SD Card Registers in SPI Mode. 3-243.6. Data Interchange Format and Card Sizes 3-244. Secure Digital (SD) Card Protocol Des cription.. 4-14.1. SD Bus Protocol. 4-14.2. Protocol’s Functional Des cription.. 4-44.3. Card Identification Mode 4-54.3.1. Reset 4-64.3.2. Operating Voltage Range Validation .. 4-74.3.3. Card Identification Process .. 4-74.4. Data Transfer Mode .. 4-84.4.1. Wide Bus Selection/Deselection 4-104.4.2. Data Read Format . 4-104.4.3. Data Write Format 4-114.4.4. Write Protect Management .. 4-134.4.4.1. Mechanical Write Protect Switch .. 4-134.4.4.2. Card’s Internal Write Protection (Optional) . 4-134.4.5. Application Specific Commands 4-134.5. Clock Control .. 4-144.6. Cyclic Redundancy Codes (CRC).. 4-154.7. Error Conditions. 4-174.7.1. CRC and Illegal Command .. 4-174.7.2. Read, Write and Erase Time-out Conditions .. 4-174.8. Commands. 4-174.8.1. Command Types 4-184.8.2. Command Format.. 4-184.8.3. Command Classes . 4-184.8.4. Detailed Command Des cription . 4-204.9. Card State Transition Table 4-244.10. Responses 4-254.11. Timings 4-274.11.1. Command and Response . 4-274.11.2. Data Read.. 4-28Table of ContentsSanDisk Secure Digital (SD) Card Product Manual, Rev. 1.9 . 2003 SANDISK CORPORATION v4.11.3. Data Write. 4-294.11.4. Timing values.. 4-325. SPI Protocol Definition . 5-15.1. SPI Bus Protocol . 5-15.1.1. Mode Selection .. 5-15.1.2. Bus Transfer Protection . 5-25.1.3. Data Read. 5-25.1.4. Data Write 5-35.1.5. Erase and Write Protect Management. 5-45.1.6. Read CID/CSD Registers.. 5-45.1.7. Reset Sequence .. 5-55.1.8. Clock Control. 5-55.1.9. Error Conditions 5-65.1.9.1. CRC and Illegal Commands . 5-65.1.9.2. Read, Write and Erase Time-out Conditions 5-65.1.10. Memory Array Partitioning 5-85.1.11. Card Lock/Unlock.. 5-85.1.12. Application Specific Commands. 5-85.1.13. Copyright Protection Commands 5-85.2. SPI Command Set .. 5-85.2.1. Command Format.. 5-85.2.2. Command Classes . 5-95.2.2.1. Detailed Command Des cription.. 5-95.2.3. Responses. 5-125.2.3.1. Format R1 .. 5-135.2.3.2. Format R1b 5-135.2.3.3. Format R2 .. 5-135.2.3.4. Format R3 .. 5-145.2.3.5. Data Response . 5-155.2.4. Data Tokens . 5-155.2.5. Data Error Token .. 5-165.2.6. Clearing Status Bits.. 5-165.3. Card Registers . 5-165.4. SPI Bus Timing Diagrams.. 5-165.4.1. Command/Response. 5-175.4.2. Data Read. 5-185.4.3. Data Write 5-185.4.4. Timing values. 5-195.5. SPI Electrical Interface. 5-195.6. SPI Bus Operating Conditions . 5-195.7. Bus Timing 5-19Appendix A. Application Note A-1Host Design Considerations: NAND MMC and SD-based ProductsIntroduction A-1Timing.. A-1Timing specifications . A-1Read access and program times. A-1Interface A-2Read/Write Mode Selection A-4Power and Clock Control . A-4Initialization Algorithm A-5Table of Contentsvi SanDisk Secure Digital (SD) Card Product Manual, Rev. 1.9 . 2003 SANDISK CORPORATIONFile System Support .. A-5Appendix B. Ordering Information B-1Appendix C. SanDisk Worldwide Sales Offices . C-1Appendix D. Limited Warranty.. D-1Appendix E. Disclaimer of Liability . E-1
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