SanDisk SD Card - OEM Product Manual

Introduction

11/2010, Version 2.9. © 2007 - 2010 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure

agreements

1

1

Table of Contents

1

Introduction ......................................................................................................................... 2

1.1

General Description ...................................................................................................... 2

1.2

Features ........................................................................................................................ 3

1.3

Scope ............................................................................................................................ 3

1.4

SD Card Standard......................................................................................................... 3

1.5

Functional Description .................................................................................................. 3

1.5.1

Technology Independence ................................................................................... 3

1.5.2

Defect and Error Management ............................................................................. 4

1.5.3

Content Protection................................................................................................ 4

1.5.4

Wear Leveling ...................................................................................................... 4

1.5.5

Automatic Sleep Mode ......................................................................................... 4

1.5.6

Hot Insertion ......................................................................................................... 4

1.6

SD Card Products in SD Bus Mode .............................................................................. 4

1.7

SPI Mode ...................................................................................................................... 6

2

Product Specifications ........................................................................................................ 7

2.1

SD Card ........................................................................................................................ 7

2.1.1

System Performance............................................................................................ 7

2.1.2

Physical Specifications ......................................................................................... 9

3

Interface Description ......................................................................................................... 10

3.1

Pins and Registers ...................................................................................................... 10

3.2

Bus Topology .............................................................................................................. 11

3.2.1

SD Bus ............................................................................................................... 11

3.2.2

SPI Bus............................................................................................................... 11

3.3

Hot Insertion and Power Protection ............................................................................ 11

3.4

Electrical Interface....................................................................................................... 11

3.4.1

Power Up............................................................................................................ 11

3.4.2

Bus Operating Conditions .................................................................................. 12

3.4.3

Bus Timing (Standard Mode) ............................................................................. 12

3.5

SD Card Registers ...................................................................................................... 12

3.5.1

Operation Conditions Register ........................................................................... 12

3.5.2

Card Identification Register ................................................................................ 12

3.5.3

Card Specific Data Register ............................................................................... 14

3.5.4

Card Status Register .......................................................................................... 16

3.5.5

SD Status Register ............................................................................................. 16

3.5.6

Relative Card Address Register ......................................................................... 17

3.5.7

SD Card Configuration Register......................................................................... 17

3.5.8

SD Card Registers in SPI Mode......................................................................... 17

3.5.9

Data Interchange Format and Card Sizes.......................................................... 17

4

SD Card Protocol Description ........................................................................................... 18

4.1

General Description .................................................................................................... 18

4.2

SD Bus Protocol.......................................................................................................... 18

4.3

Functional Description ................................................................................................ 18

4.3.1

Card Identification Mode .................................................................................... 18

4.3.2

Data Transfer Mode ........................................................................................... 18

4.3.3

Clock Control ...................................................................................................... 18

4.3.4

Cyclic Redundancy Codes ................................................................................. 18

4.3.5

Error Conditions ................................................................................................. 18

4.3.6

Commands ......................................................................................................... 18

4.3.7

Card State Transition ......................................................................................... 18

4.3.8

Timing Diagrams and Values ............................................................................. 19

4.3.9

Speed Class Specification.................................................................................. 19

4.3.10

Erase Timeout Calculation ................................................................................. 19

Appendix A: Ordering Information............................................................................................ 19