Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD 数据表

产品代码

ATSAM4S-WPIR-RD

SAM4S Series [DATASHEET]

Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14

884

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.

2 3 4 5 6

MMC

2 3 4 5 6

7 8

SDCard

Physical Layer

HSMCI Interface

Application Layer

ex: File System, Audio, Security, etc.

9 10 11

1213 8

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