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Hardware Description
3-78 Copyright © 2003-2007 ARM Limited. All rights reserved. ARM DUI 0224F
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.
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