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MMC-System-Spec-v3.31(MMC卡资料).pdf
1 General Description
2 System Features
3 MultiMediaCard System Concept
3.1 Card Concept
3.1.1 Form Factors
3.2 Bus Concept
3.2.1 Bus Lines
3.2.2 Bus Protocol
3.3 Controller Concept
3.3.1 Application Adapter Requirements
3.3.2 MultiMediaCard Adapter Architecture
4 MultiMediaCard Functional Description
4.1 General
4.2 Card Identification Mode
4.2.1 Card Reset
4.2.2 Operating Voltage Range Validation
4.2.3 Card Identification Process
4.3 Interrupt Mode
4.4 Data Transfer Mode
4.4.1 Data Read
4.4.2 Data Write
4.4.3 Erase
4.4.4 Write Protect Management
4.4.5 Card Lock/Unlock Operation
4.4.6 Application specific commands
4.5 Clock Control
4.6 Error Conditions
4.6.1 CRC and Illegal Command
4.6.2 Read, Write and Erase Time-out Conditions
4.6.3 Read ahead in Stream and multiple block read operation
4.7 Commands
4.7.1 Command Types
4.7.2 Command Format
4.7.3 Command Classes
4.7.4 Detailed Command Description
4.8 Card State Transition Table
4.9 Responses
4.10 Card Status
4.11 Memory Array Partitioning
4.12 Timings
4.12.1 Command and Response
4.12.2 Data Read
4.12.3 Data Write
4.12.4 Timing Values
5 Card Registers
5.1 OCR Register
5.2 CID Register
5.3 CSD Register
5.4 RCA Register
5.5 DSR Register
6 The MultiMediaCard Bus
6.1 Hot Insertion and Removal
6.2 Power Protection
6.3 Power Up
6.4 Programmable Card Output Driver
6.5 Bus Operating Conditions
6.6 Bus Signal Levels
6.6.1 Open-Drain Mode Bus Signal Level
6.6.2 Push-Pull Mode Bus Signal Level - High Voltage MultiMediaCard
6.6.3 Push-Pull Mode Bus Signal Level - Low voltage MultiMediaCard
6.7 Bus Timing
7 SPI Mode
7.1 Introduction
7.2 SPI Interface Concept
7.3 SPI Bus Topology
7.4 MultiMediaCard Registers in SPI Mode
7.5 SPI Bus Protocol
7.5.1 Mode Selection
7.5.2 Bus Transfer Protection
7.5.3 Data Read
7.5.4 Data Write
7.5.5 Erase & Write Protect Management
7.5.6 Read CID/CSD Registers
7.5.7 Reset Sequence
7.5.8 Clock Control
7.5.9 Error Conditions
7.5.10 Memory Array Partitioning
7.5.11 Card Lock/unlock
7.5.12 Application Specific commands
7.6 SPI Mode Transaction Packets
7.6.1 Command Tokens
7.6.2 Responses
7.6.3 Data Tokens
7.6.4 Data Error Token
7.6.5 Clearing Status Bits
7.7 Card Registers
7.8 SPI Bus Timing Diagrams
7.8.1 Command / Response
7.8.2 Data read
7.8.3 Data write
7.8.4 Timing Values
7.9 SPI Electrical Interface
7.10 SPI Bus Operating Conditions
7.11 Bus Timing
8 Error protection
8.1 Error Correction Codes (ECC)
8.2 Cyclic Redundancy Codes (CRC)
9 MultiMediaCard Mechanical Specification
9.1 Card Package
9.1.1 External Signal Contacts (ESC)
9.1.2 Design and Format
9.1.3 Reliability and Durability
9.1.4 Quality Assurance
9.2 System: Card and Connector
9.2.1 Card Hot Insertion
9.2.2 Inverse Insertion
9.2.3 Card Orientation
10 MultiMediaCard Standard Compliance
11 File Formats for the MultiMediaCard
11.1 Hard Disk-like File System with Partition Table
11.2 DOS FAT File System without Partition Table
11.3 Universal File System for the MultiMediaCard
12 Abbreviations and terms
Appendix A: Application notes
A.1 Power Supply Decoupling
A.2 Payload Block Length and ECC Types Handling
A.3 Connector
A.3.1 General
A.3.2 Card Insertion and Removal
A.3.3 Characteristics
A.4 Description of method for storing passwords on the card
A.5 MultiMediaCard Macro Commands
Appendix B: Changes Between System Specification Versions
B.1 Changes from version 1.4 to 2.0
B.2 Changes from version 2.0 to 2.11
B.3 Changes from version 2.11 to 2.2
B.4 Version 3.0
B.5 Changes from version 2.2 to 3.1
B.6 Changes from version 3.1 to 3.2
B.7 Changes from version 3.2 to 3.3
The
MultiMediaCard
System Specification
Version 3.31
MMCA Technical Committee
Revision History
Version
Date
Section/ Page
Changes compared to previous issue
MultiMediaCard System
all
Chap. 4,6,10
Initial version of system specification
Complete revision
09-09-96
27-09-96
15-11-96
25-2-98
1/99
5/99
all
all
all
4, 5, 7, 9, 10, 11
Password locking
Complete revision. Added new chapters
Several changes in SPI mode (chapter 7). Smaller changes in chapters
2, 4, 5. All references to “MMC” changed to “MultiMediaCard”.
Several new features introduced:
• Data interchange format
•
• Application specific commands
Several clarifications and minor corrections for MultiMediaCard
mode (chapter 4) and SPI mode (chapter 7). Backward compatible
change of card dimensional tolerances (chapter 9).
Corrections in the status/command cross reference table (chapter 4)
ESD tolerance, SPI status bits, Definition of card top side.
This is a major upgrade of the spec that contains new mechanical,
electrical as well as protocol changes. See appendix for details.
The CSD version identification fields in 3.0 version are not compati-
ble with old versions. 3.1 fixes the issues, replaces and obsoletes 3.0
Definition of Low Voltage MultiMediaCard completed. Some details
added to the mechanical form factor of the card. Erase and Group
write protect classes defined as mandatory for Read/Write cards and 2
CSD bits where allocated for application specific use.
Introduced the reduced size MMC. The high voltage range is now
mandatory for all cards, as well as OCR register and CMD1 imple-
mentation. Corrected some typos in the wording.
Corrected connector order in figure 72
1.0
1.1
1.2
1.4
2.0
2.1
2.11
2.2
3.0
3.1
3.2
6/99
1/00
1/01
6/01
1/02
4
7, 9
All
5
4, 5, 6, 9
3.3
3/03
2, 3, 8
3.31
5/03
A
2
MultiMediaCard System Specification Version 3.31 Official Release (c) May 2003 MMCA
MultiMediaCard System
You acknowledge that the attached standard (the “Standard”) is provided to you on an “AS IS” basis.
MULTIMEDIACARD ASSOCIATION (“MMCA”) MAKES NO EXPRESS, IMPLIED OR
STATUTORY WARRANTIES AND EXPRESSLY DISCLAIMS THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-
INFRINGEMENT OF THIRD PARTY RIGHTS. MMCA SHALL NOT BE LIABLE FOR (I)
TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED WITHIN THE
STANDARD, OR (II) ANY INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL
DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS OR LOSS OF USE)
RESULTING FROM THE FURNISHING, PERFORMANCE OR USE OF THE STANDARD,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Copyright (c) May 2003 MultiMediaCard Association P.O. Box 2012 Cupertino, CA 95015-2012
USA. World rights reserved.
No part of this publication may be transmitted, reproduced or distributed in any way, including but
not limited to photocopying, electronic copying, magnetic or other recording, without the prior
written consent of MMCA.
MultiMediaCard System Specification Version 3.31 Official Release (c) May 2003 MMCA
3
MultiMediaCard System
4
MultiMediaCard System Specification Version 3.31 Official Release (c) May 2003 MMCA
MultiMediaCard System
Table Of Contents
1
2
3
3.1
3.1.1
3.2
3.2.1
3.2.2
3.3
3.3.1
3.3.2
4
4.1
4.2
4.2.1
4.2.2
4.2.3
4.3
4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.5
4.6
4.6.1
4.6.2
4.6.3
4.7
4.7.1
4.7.2
4.7.3
4.7.4
4.8
4.9
General Description .......................................................................................................... 11
System Features ................................................................................................................ 13
MultiMediaCard System Concept .................................................................................. 15
Card Concept ...................................................................................................................... 18
Form Factors .................................................................................................................................... 19
Bus Concept ........................................................................................................................ 20
Bus Lines ......................................................................................................................................... 20
Bus Protocol ..................................................................................................................................... 21
Controller Concept ............................................................................................................. 24
Application Adapter Requirements .................................................................................................. 25
MultiMediaCard Adapter Architecture ............................................................................................ 25
MultiMediaCard Functional Description ....................................................................... 29
General ............................................................................................................................... 29
Card Identification Mode ................................................................................................... 30
Card Reset ........................................................................................................................................ 30
Operating Voltage Range Validation ............................................................................................... 30
Card Identification Process .............................................................................................................. 32
Interrupt Mode .................................................................................................................... 32
Data Transfer Mode ............................................................................................................ 34
Data Read ......................................................................................................................................... 35
Data Write ........................................................................................................................................ 37
Erase ................................................................................................................................................. 39
Write Protect Management .............................................................................................................. 39
Card Lock/Unlock Operation ........................................................................................................... 40
Application specific commands ....................................................................................................... 42
Clock Control ..................................................................................................................... 43
Error Conditions ................................................................................................................. 43
CRC and Illegal Command .............................................................................................................. 43
Read, Write and Erase Time-out Conditions ................................................................................... 44
Read ahead in Stream and multiple block read operation ................................................................ 44
Commands .......................................................................................................................... 45
Command Types .............................................................................................................................. 45
Command Format ............................................................................................................................ 45
Command Classes ............................................................................................................................ 45
Detailed Command Description ....................................................................................................... 46
Card State Transition Table ................................................................................................ 52
Responses ........................................................................................................................... 53
MultiMediaCard System Specification Version 3.31 Official Release (c) March 2003 MMCA
5
MultiMediaCard System
4.10
Card Status .......................................................................................................................... 55
4.11 Memory Array Partitioning ................................................................................................ 58
4.12
Timings ............................................................................................................................... 59
4.12.1
Command and Response .................................................................................................................. 60
4.12.2 Data Read ......................................................................................................................................... 61
4.12.3 Data Write ........................................................................................................................................ 62
Timing Values .................................................................................................................................. 65
4.12.4
5
5.1
5.2
5.3
5.4
5.5
6
6.1
6.2
6.3
6.4
6.5
6.6
6.6.1
6.6.2
6.6.3
6.7
7
7.1
7.2
7.3
7.4
7.5
7.5.1
7.5.2
7.5.3
7.5.4
7.5.5
7.5.6
7.5.7
7.5.8
6
Card Registers ................................................................................................................... 67
OCR Register ...................................................................................................................... 67
CID Register ....................................................................................................................... 67
CSD Register ...................................................................................................................... 68
RCA Register ...................................................................................................................... 76
DSR Register ...................................................................................................................... 77
The MultiMediaCard Bus ................................................................................................ 79
Hot Insertion and Removal ................................................................................................. 79
Power Protection ................................................................................................................. 80
Power Up ............................................................................................................................ 81
Programmable Card Output Driver .................................................................................... 82
Bus Operating Conditions ................................................................................................... 84
Bus Signal Levels ............................................................................................................... 85
Open-Drain Mode Bus Signal Level ................................................................................................ 85
Push-Pull Mode Bus Signal Level - High Voltage MultiMediaCard .............................................. 85
Push-Pull Mode Bus Signal Level - Low voltage MultiMediaCard ................................................ 85
Bus Timing ......................................................................................................................... 86
SPI Mode ........................................................................................................................... 89
Introduction ......................................................................................................................... 89
SPI Interface Concept ......................................................................................................... 89
SPI Bus Topology ............................................................................................................... 89
MultiMediaCard Registers in SPI Mode ............................................................................ 90
SPI Bus Protocol ................................................................................................................. 91
Mode Selection ................................................................................................................................. 91
Bus Transfer Protection .................................................................................................................... 91
Data Read ......................................................................................................................................... 92
Data Write ........................................................................................................................................ 93
Erase & Write Protect Management ................................................................................................ 95
Read CID/CSD Registers ................................................................................................................. 95
Reset Sequence ................................................................................................................................. 96
Clock Control ................................................................................................................................... 96
MultiMediaCard System Specification Version 3.31 Official Release (c) March 2003 MMCA
MultiMediaCard System
Table Of Contents
7.5.9
Error Conditions ............................................................................................................................... 96
7.5.10 Memory Array Partitioning .............................................................................................................. 97
7.5.11
Card Lock/unlock ............................................................................................................................. 97
7.5.12 Application Specific commands ...................................................................................................... 97
7.6
SPI Mode Transaction Packets ........................................................................................... 98
Command Tokens ............................................................................................................................ 98
7.6.1
Responses ....................................................................................................................................... 101
7.6.2
7.6.3
Data Tokens ................................................................................................................................... 104
Data Error Token ........................................................................................................................... 104
7.6.4
Clearing Status Bits ........................................................................................................................ 105
7.6.5
7.7
Card Registers .................................................................................................................. 106
SPI Bus Timing Diagrams ................................................................................................ 107
7.8
Command / Response .................................................................................................................... 107
7.8.1
Data read ........................................................................................................................................ 108
7.8.2
7.8.3
Data write ....................................................................................................................................... 109
Timing Values ................................................................................................................................ 111
7.8.4
SPI Electrical Interface ..................................................................................................... 111
7.9
7.10
SPI Bus Operating Conditions .......................................................................................... 111
Bus Timing ....................................................................................................................... 111
7.11
8
8.1
8.2
9
9.1
9.1.1
9.1.2
9.1.3
9.1.4
9.2
9.2.1
9.2.2
9.2.3
10
11
11.1
11.2
Error protection .............................................................................................................. 113
Error Correction Codes (ECC) ......................................................................................... 113
Cyclic Redundancy Codes (CRC) .................................................................................... 113
MultiMediaCard Mechanical Specification ................................................................. 117
Card Package .................................................................................................................... 117
External Signal Contacts (ESC) ..................................................................................................... 118
Design and Format ......................................................................................................................... 118
Reliability and Durability ............................................................................................................. 122
Quality Assurance .......................................................................................................................... 122
System: Card and Connector ............................................................................................ 122
Card Hot Insertion .......................................................................................................................... 122
Inverse Insertion ............................................................................................................................. 123
Card Orientation ............................................................................................................................. 123
MultiMediaCard Standard Compliance ...................................................................... 125
File Formats for the MultiMediaCard ......................................................................... 127
Hard Disk-like File System with Partition Table ............................................................. 127
DOS FAT File System without Partition Table ............................................................... 129
MultiMediaCard System Specification Version 3.31 Official Release (c) March 2003 MMCA
7
MultiMediaCard System
11.3
Universal File System for the MultiMediaCard ............................................................... 129
12
Abbreviations and terms ................................................................................................ 131
Appendix A: Application notes .................................................................................................... 133
Power Supply Decoupling ................................................................................................ 133
A.1
A.2
Payload Block Length and ECC Types Handling ............................................................ 133
A.3
Connector .......................................................................................................................... 134
A.3.1 General .............................................................................................................................. 134
A.3.2 Card Insertion and Removal ............................................................................................. 134
A.3.3 Characteristics ................................................................................................................... 135
Description of method for storing passwords on the card ................................................ 136
A.4
A.5
MultiMediaCard Macro Commands ................................................................................. 137
Appendix B: Changes Between System Specification Versions ................................................ 146
Changes from version 1.4 to 2.0 ....................................................................................... 146
B.1
Changes from version 2.0 to 2.11 ..................................................................................... 146
B.2
B.3
Changes from version 2.11 to 2.2 ..................................................................................... 147
Version 3.0 ........................................................................................................................ 147
B.4
Changes from version 2.2 to 3.1 ....................................................................................... 147
B.5
B.6
Changes from version 3.1 to 3.2 ....................................................................................... 148
Changes from version 3.2 to 3.3 ....................................................................................... 149
B.7
8
MultiMediaCard System Specification Version 3.31 Official Release (c) March 2003 MMCA
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