Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Data Sheet

SAM4E [DATASHEET]

Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14

1456

The High Speed MultiMedia Card Interface (HSMCI) supports the MultiMedia Card (MMC) Specification V4.3, 
the SD Memory Card Specification V2.0, the SDIO V2.0 specification and CE-ATA V1.1.

Timings are given in the following domains:



1.8V domain: V

VDDIO

 from 1.65V to 1.95V, maximum external capacitor = 30 pF



3.3V domain: V

VDDIO

 from 2.85V to 3.6V, maximum external capacitor = 50 pF

.

Timings are given assuming a capacitance load on data, control and address pads:

In the tables that follow, t

CP_MCK 

is MCK period. 

Notes:

1. 1.8V domain: V

VDDIO

 from 1.65V to 1.95V, maximum external capacitor = 30 pF.

2. 3.3V domain: V

VDDIO

 from 2.85V to 3.6V, maximum external capacitor = 50 pF.

—

—

SMC

1

Data Setup before NRD High 

20.6

18.6

—

—

ns

SMC

2

Data Hold after NRD High 

0

0

—

—

ns

≠ 0)

SMC

3

Data Setup before NRD High 

15.9

14.1

—

—

ns

SMC

4

Data Hold after NRD High

0

0

—

—

ns

≠ 0, NRD hold = 0)

SMC

5

 A0 - A22 Valid before NRD High 

(NRD setup + NRD pulse) 

* 

t

CP_MCK 

 

- 6.8

(

NRD 

 setup + 

NRD

 

pulse)* 

t

CP_MCK 

 

- 6.5

—

—

ns

SMC

6

NCS low before NRD High 

(NRD setup + NRD pulse - 

NCS RD setup) * 

t

CP_MCK 

 

- 4.6

(NRD setup + NRD pulse - 

NCS RD setup) * 

t

CP_MCK 

 

- 5.1

—

—

ns

SMC

7

NRD Pulse Width

NRD pulse * 

t

CP_MCK  

- 7.5

NRD pulse * 

t

CP_MCK 

- 6.6

—

—

ns