ARM ARM DUI 0224I manual MMC signals, MCIPWRx, CARDINx, MCIxDAT30, MCICLKx

Models: ARM DUI 0224I

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Hardware Description

 

Table 3-18 MMC signals

 

 

Signal

Description

 

 

MCIPWRx

Enables supply voltage to card.

 

 

MCIxCMD

Command selection.

 

 

CARDINx

Card detect signal. Read the current state from SYS_MCI.

 

 

MCIxDAT[3:0]

Card data bus.

 

 

WPROTx

Write protection indication. Read the current state from

 

SYS_MCI.

 

 

MCICLKx

Clock to card.

 

 

See MMC and SD flash card interface on page A-8 for details of the MMC/SD card socket and pin numbering.

See also MultiMedia Card Interfaces, MCIx on page 4-70 and the ARM PrimeCell

Multimedia Card Interface (PL180) Technical Reference Manual.

3-78

Copyright © 2003-2010 ARM Limited. All rights reserved.

ARM DUI 0224I

Page 140
Image 140
ARM ARM DUI 0224I manual MMC signals, MCIPWRx, CARDINx, MCIxDAT30, MCICLKx