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SDSDB-32-781
SanDisk SDSDB-32-781 Manuals
Manuals and User Guides for SanDisk SDSDB-32-781. We have
1
SanDisk SDSDB-32-781 manual available for free PDF download: Product Manual
SanDisk SDSDB-32-781 Product Manual (113 pages)
Secure Digital Card
Brand:
SanDisk
| Category:
Storage
| Size: 1.17 MB
Table of Contents
Table of Contents
3
1 Introduction to the SD Card
7
Scope
8
Product Models
8
System Features
8
SD Card Standard
9
Functional Description
9
Flash Technology Independence
10
Defect and Error Management
10
Copyright Protection
10
Endurance
11
Wear Leveling
11
Using the Erase Command
11
Automatic Sleep Mode
11
Hot Insertion
11
SD Card-SD Bus Mode
12
SD Card Standard Compliance
12
Negotiating Operation Conditions
12
Card Acquisition and Identification
12
Card Status
12
Memory Array Partitioning
13
Read and Write Operations
15
Data Transfer Rate
15
Data Protection in the Flash Card
16
Erase
16
Write Protection
16
Copy Bit
16
The CSD Register
16
SD Card-SPI Mode
16
Negotiating Operating Conditions
17
Card Acquisition and Identification
17
Card Status
17
Memory Array Partitioning
17
Read and Write Operations
17
Data Transfer Rate
17
Data Protection in the SD Card
17
Erase
17
Write Protection
18
Copyright Protection
18
2 Product Specifications
20
System Environmental Specifications
20
Reliability and Durability
20
Typical Card Power Requirements
21
System Performance
21
System Reliability and Maintenance
21
Physical Specifications
22
3 SD Card Interface Description
26
General Description of Pins and Registers
26
Pin Assignments in SD Card Mode
26
Pin Assignments in SPI Mode
27
SD Bus Topology
28
Power Protection
30
SPI Bus Topology
30
Power Protection
31
Electrical Interface
31
Power-Up
32
Bus Operating Conditions
33
Bus Signal Line Load
33
Bus Signal Levels
34
Bus Timing
35
SD Card Registers
36
Operating Conditions Register (OCR)
36
Card Identification (CID) Register
37
CSD Register
38
SCR Register
44
Status Register
45
SD Status
48
RCA Register
48
SD Card Registers in SPI Mode
49
Data Interchange Format and Card Sizes
49
4 Secure Digital (SD) Card Protocol Description
51
SD Bus Protocol
51
Protocol's Functional Description
54
Card Identification Mode
55
Reset
56
Operating Voltage Range Validation
57
Card Identification Process
57
Data Transfer Mode
58
Wide Bus Selection/Deselection
60
Data Read Format
60
Data Write Format
61
Write Protect Management
63
Mechanical Write Protect Switch
63
Card's Internal Write Protection (Optional)
63
Application Specific Commands
63
Clock Control
64
Cyclic Redundancy Codes (CRC)
65
Error Conditions
67
CRC and Illegal Command
67
Read, Write and Erase Time-Out Conditions
67
Commands
67
Command Types
68
Command Format
68
Command Classes
68
Detailed Command Description
70
Card State Transition Table
74
Responses
75
Timings
77
Command and Response
77
Data Read
78
Data Write
79
Timing Values
82
5 SPI Protocol Definition
83
SPI Bus Protocol
83
Mode Selection
83
Bus Transfer Protection
84
Data Read
84
Data Write
85
Erase and Write Protect Management
86
Read CID/CSD Registers
86
Reset Sequence
87
Clock Control
87
Error Conditions
88
CRC and Illegal Commands
88
Read, Write and Erase Time-Out Conditions
88
Memory Array Partitioning
90
Card Lock/Unlock
90
Application Specific Commands
90
Copyright Protection Commands
90
SPI Command Set
90
Command Format
90
Command Classes
91
Detailed Command Description
91
Responses
94
Format R1
95
Format R1B
95
Format R2
95
Format R3
96
Data Response
97
Data Tokens
97
Data Error Token
98
Clearing Status Bits
98
Card Registers
98
SPI Bus Timing Diagrams
98
Command/Response
99
Data Read
100
Data Write
100
Timing Values
101
SPI Electrical Interface
101
SPI Bus Operating Conditions
101
Bus Timing
101
Appendix A. Application Note
103
Host Design Considerations: NAND MMC and SD-Based Products Introduction
103
Timing
103
Timing Specifications
103
Read Access and Program Times
103
Interface
104
Read/Write Mode Selection
106
Power and Clock Control
106
Initialization Algorithm
107
File System Support
107
Appendix B. Ordering Information
108
Appendix C. Sandisk Worldwide Sales Offices
109
Appendix D. Limited Warranty
111
Appendix E. Disclaimer of Liability
113
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