SAMA5D2 datasheet(22/74 Pages) ATMEL

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SAMA5D2 Xplained Ultra [USER GUIDE]

Atmel-44028C-ATARM-SAMA5D2-Xplained-Ultra-User Guide_13-Oct-16

5.4

PIO Usage and Interface Connectors

5.4.1

Secure Digital Multimedia Card Interface (SDMMC)

5.4.1.1

Secure Digital Multimedia Card (SDMMC) Controller

The SAMA5D2-XULT board has two Secure Digital Multimedia Card (SDMMC) interfaces that support the

MultiMedia Card (e.MMC) Specification V4.41, the SD Memory Card Specification V3.0, and the SDIO V3.0

specification. It is compliant with the SD Host Controller Standard V3.0 specification.



SDMMC0 interface is connected to the eMMC.



SDMMC1 Interface based on a 7-pin interface (clock, command, 4-bit data, power lines).

5.4.1.2

SDMMC1 Card Connector

A standard MMC/SD card connector, connected to SDMMC1, is mounted on the top side of the board. It includes

a card detection switch.

Figure 5-18.

SDMMC1

(MCI1_CD)

(SDHC1_WP)

(MCI1_DA1)

(MCI1_DA0)

(MCI1_CK)

(MCI1_CDA)

(MCI1_DA3)

(MCI1_DA2)

VDD_3V3

SDHC1_DAT0_PA18

[7]

SDHC1_DAT1_PA19

[7]

SDHC1_DAT2_PA20

[7]

SDHC1_DAT3_PA21

[7]

SDHC1_CMD_PA28

[7]

SDHC1_CK_PA22

[7]

SDHC1_CD_PA30

[7]

C75

100nF

R214

J19

SD Card Connector

R249

C64

10uF

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