Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet

563

SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]

11063K–ATARM–05-Nov-13

Notes: 1. When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK, MCCDA to 

HSMCIx_CDA, MCCDB to HSMCIx_CDB, MCCDC to HSMCIx_CDC, MCCDD to HSMCIx_CDD, MCDAy to 
HSMCIx_DAy, MCDBy to HSMCIx_DBy, MCDCy to HSMCIx_DCy, MCDDy to HSMCIx_DDy.

2. I: Input, O: Output, PP: Push/Pull, OD: Open Drain.

2 3 4 5 6

1

7

MMC

2 3 4 5 6

1

7 8

SDCard

9

Physical Layer 

HSMCI Interface

Application Layer 

ex: File System, Audio, Security, etc.

9 10 11

1213 8

MCCDA

Command/response

I/O/PP/OD

CMD of an MMC or SDCard/SDIO

MCCK

Clock

I/O

CLK of an MMC or SD Card/SDIO

MCDA0 - MCDA7

Data 0..7 of Slot A

I/O/PP

DAT[0..7] of an MMC

DAT[0..3] of an SD Card/SDIO