Owners manual

Memory
H3 Datasheet(Revision1.2) Copyright© 2015 Allwinner Technology Co.,Ltd.All Rights Reserved. Page 379
5.3.2. Block Diagram
Figure 5-16. SD/MMC Controller Block Diagram
5.3.3. SD/MMC Controller Timing Diagram
Please refer to relative specifications:
 Physical Layer Specification Ver2.00 Final
 SDIO Specification Ver2.00
 Multimedia Cards (MMC – version 4.2)
 JEDEC Standard – JESD84-44, EMBEDDED MULTI-MEDIA CARD (e•MMC)
5.3.4. SD/MMC Controller Special Requirement
5.3.4.1. SD/MMC Pin List
Port Name
Width
Direction
Description
SD_CCLK
1
OUT
Clock output for SD/SDIO/MMC card
SD_CCMD
1
IN/OUT
CMD line
SD_CDATA
4/8
IN/OUT
Data line
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