MMC卡的资料(免费)

woowoo

The
MultiMediaCard
System Summary
Based on System Specification Version 2.11
1 General Description ..................................................................................................................... 5
2 System Features ............................................................................................................................ 6
3 MultiMediaCard System Concept .............................................................................................. 7
3.1 Card Concept ........................................................................................................................... 10
3.2 Bus Concept ............................................................................................................................ 12
3.2.1 Bus Lines ....................................................................................................................................13
3.2.2 Bus Protocol ................................................................................................................................13
3.3 Controller Concept .................................................................................................................. 16
4 Card Registers ............................................................................................................................ 18
5 MultiMediaCard Bus ................................................................................................................ 19
6 SPI Mode .................................................................................................................................... 20
6.1 Introduction ............................................................................................................................. 20
6.2 SPI Interface Concept .............................................................................................................. 20
6.3 SPI Bus Topology ................................................................................................................... 20
6.4 MultiMediaCard Registers in SPI Mode ................................................................................. 21
6.5 SPI Electrical Interface and Bus Operating Conditions .......................................................... 22
7 Error Protection ......................................................................................................................... 23
8 MultiMediaCard File Formats .................................................................................................. 24
9 MultiMediaCard Standard Compliance .................................................................................. 25
10 Abbreviations and Terms .......................................................................................................... 27

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