Datasheet

870
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
38.4 Application Block Diagram
Figure 38-2. Application Block Diagram
38.5 Pin Name List
Notes: 1. When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK, MCCDA to
HSMCIx_CDA, MCDAy to HSMCIx_DAy.
2. I: Input, O: Output, PP: Push/Pull, OD: Open Drain.
2345617
MMC
23456178
SDCard
9
Physical Layer
HSMCI Interface
Application Layer
ex: File System, Audio, Security, etc.
91011 12138
Table 38-1. I/O Lines Description for 4-bit Configuration
Pin Name
(1)
Pin Description Type
(2)
Comments
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 - MCDA3 Data 0..3 of Slot A I/O/PP
DAT[0..3] of an MMC
DAT[0..3] of an SD Card/SDIO