Altera_Forum
Honored Contributor
Honored ContributorReplace the GHRD SD MMC to be a smaller EMMC chip?
Hi, Any precaution for us to replace the current SD MMC slot to another eMMC slot? is the communication is compatible all the way?
Forum Discussion
8 Replies
Altera_Forumif read from the hand book bot protocol looks compatible....
- Altera_Forum
Yes, eMMC this is a compatible protocol with SD MMC,
- Altera_Forum
take note that when follow the golden reference, the SD MMC configuration is in 4 bit data, where not fully utilize all the 8 bit data mode...
- Altera_Forum
how is the physical connection? it is compatible between emmc and sd card?
- Altera_Forum
yes... that's right... it is compatible.
- Altera_Forum
Hey the boot time of the soc guide for sd cars is using the golden design? That is not with maximum 8 bit data. Only 4 bit. Could it becomes even shorter boot with 8 bit?
- Altera_Forum
definitely yes...with maximum supported data width.
- Altera_Forum
there fore you are good to use any emmc type as long as supported by the controller
