JESD84-B45-EMMC4.51
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JEDEC STANDARD
Embedded Multimedia Card (e•MMC), Electrical Standard 4.51
JESD84-B451
(revision ofv JESD84-B45, June 2011)
JUNE 2012
JEDEC SOLID STATE TECHNOLOGY ASSOCIATION
Printed in the U.S.A. All rights reserved
PLEASE! DON’T VIOLATE THE LAW! This document is copyrighted by JEDEC and may not be reproduced without permission. For information, contact: JEDEC Solid State Technology Association 3103 North 10th Street Suite 240 South Arlington, VA 22201-2107 or refer to under Standards-Documents/Copyright Information.
JULTIMEDIA CARD (e•MMC), ELECTRICAL STANDARD 4.51 Contents Page 1 2 3 4 5 5.1 5.2 5.3 5.3.1 5.4 5.4.1 5.4.2 5.4.3 6 6.1 6.2 6.2.1 6.2.2 6.2.3 6.2.4 6.2.5 6.3 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 6.3.6 6.3.7 6.4 Scope ......................................................................................................................................... 1 Normative reference .................................................................................................................. 1 Terms and definitions ................................................................................................................ 1 System Features......................................................................................................................... 5 e•MMC Device and System ...................................................................................................... 7 e•MMC System Overview......................................................................................................... 7 Memory Addressing .................................................................................................................. 7 e•MMC Device Overview ......................................................................................................... 8 Bus Protocol .............................................................................................................................. 9 Bus Speed Modes .................................................................................................................... 15 HS200 Bus Speed Mode.......................................................................................................... 15 HS200 System Block Diagram................................................................................................ 15 Adjustable Sampling Host ....................................................................................................... 16 e•MMC functional description ................................................................................................ 17 e•MMC Overview ................................................................................................................... 17 Partition Management ............................................................................................................. 18 General .................................................................................................................................... 18 Command restrictions.............................................................................................................. 20 Extended Partitions Attribute .................................................................................................. 20 Configure partitions................................................................................................................. 20 Access partitions...................................................................................................................... 23 Boot operation mode ............................................................................................................... 24 Device reset to Pre-idle state ................................................................................................... 24 Boot partition........................................................................................................................... 25 Boot operation ......................................................................................................................... 26 Alternative boot operation ....................................................................................................... 28 Access to boot partition ........................................................................................................... 31 Boot bus width and data access configuration ........................................................................ 32 Boot Partition Write Protection ............................................................................................... 32 Device identification mode ..................................................................................................... 34 -i-
NOTICE JEDEC standards and publications contain material that has been prepared, reviewed, and approved through the JEDEC Board of Directors level and subsequently reviewed and approved by the JEDEC legal counsel. JEDEC standards and publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for use by those other than JEDEC members, whether the standard is to be used either domestically or internationally. JEDEC standards and publications are adopted without regard to whether or not their adoption may involve patents or articles, materials, or processes. By such action JEDEC does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the JEDEC standards or publications. The information included in JEDEC standards and publications represents a sound approach to product specification and application, principally from the solid state device manufacturer viewpoint. Within the JEDEC organization there are procedures whereby a JEDEC standard or publication may be further processed and ultimately become an ANSI standard. No claims to be in conformance with this standard may be made unless all requirements stated in the standard are met. Inquiries, comments, and suggestions relative to the content of this JEDEC standard or publication should be addressed to JEDEC at the address below, or refer to under Standards and Documents for alternative contact information. Published by ©JEDEC Solid State Technology Association 2012 3103 North 10th Street Suite 240 South Arlington, VA 22201-2107 This document may be downloaded free of charge; however JEDEC retains the copyright on this material. By downloading this file the individual agrees not to charge for or resell the resulting material. PRICE: Contact JEDEC
Embedded Multimedia Card (e•MMC), Electrical Standard 4.51
JESD84-B451
(revision ofv JESD84-B45, June 2011)
JUNE 2012
JEDEC SOLID STATE TECHNOLOGY ASSOCIATION
Printed in the U.S.A. All rights reserved
PLEASE! DON’T VIOLATE THE LAW! This document is copyrighted by JEDEC and may not be reproduced without permission. For information, contact: JEDEC Solid State Technology Association 3103 North 10th Street Suite 240 South Arlington, VA 22201-2107 or refer to under Standards-Documents/Copyright Information.
JULTIMEDIA CARD (e•MMC), ELECTRICAL STANDARD 4.51 Contents Page 1 2 3 4 5 5.1 5.2 5.3 5.3.1 5.4 5.4.1 5.4.2 5.4.3 6 6.1 6.2 6.2.1 6.2.2 6.2.3 6.2.4 6.2.5 6.3 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 6.3.6 6.3.7 6.4 Scope ......................................................................................................................................... 1 Normative reference .................................................................................................................. 1 Terms and definitions ................................................................................................................ 1 System Features......................................................................................................................... 5 e•MMC Device and System ...................................................................................................... 7 e•MMC System Overview......................................................................................................... 7 Memory Addressing .................................................................................................................. 7 e•MMC Device Overview ......................................................................................................... 8 Bus Protocol .............................................................................................................................. 9 Bus Speed Modes .................................................................................................................... 15 HS200 Bus Speed Mode.......................................................................................................... 15 HS200 System Block Diagram................................................................................................ 15 Adjustable Sampling Host ....................................................................................................... 16 e•MMC functional description ................................................................................................ 17 e•MMC Overview ................................................................................................................... 17 Partition Management ............................................................................................................. 18 General .................................................................................................................................... 18 Command restrictions.............................................................................................................. 20 Extended Partitions Attribute .................................................................................................. 20 Configure partitions................................................................................................................. 20 Access partitions...................................................................................................................... 23 Boot operation mode ............................................................................................................... 24 Device reset to Pre-idle state ................................................................................................... 24 Boot partition........................................................................................................................... 25 Boot operation ......................................................................................................................... 26 Alternative boot operation ....................................................................................................... 28 Access to boot partition ........................................................................................................... 31 Boot bus width and data access configuration ........................................................................ 32 Boot Partition Write Protection ............................................................................................... 32 Device identification mode ..................................................................................................... 34 -i-
NOTICE JEDEC standards and publications contain material that has been prepared, reviewed, and approved through the JEDEC Board of Directors level and subsequently reviewed and approved by the JEDEC legal counsel. JEDEC standards and publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for use by those other than JEDEC members, whether the standard is to be used either domestically or internationally. JEDEC standards and publications are adopted without regard to whether or not their adoption may involve patents or articles, materials, or processes. By such action JEDEC does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the JEDEC standards or publications. The information included in JEDEC standards and publications represents a sound approach to product specification and application, principally from the solid state device manufacturer viewpoint. Within the JEDEC organization there are procedures whereby a JEDEC standard or publication may be further processed and ultimately become an ANSI standard. No claims to be in conformance with this standard may be made unless all requirements stated in the standard are met. Inquiries, comments, and suggestions relative to the content of this JEDEC standard or publication should be addressed to JEDEC at the address below, or refer to under Standards and Documents for alternative contact information. Published by ©JEDEC Solid State Technology Association 2012 3103 North 10th Street Suite 240 South Arlington, VA 22201-2107 This document may be downloaded free of charge; however JEDEC retains the copyright on this material. By downloading this file the individual agrees not to charge for or resell the resulting material. PRICE: Contact JEDEC