TMS320DM644x DMSoC Multimedia Card (MMC)/Secure Digital (SD) Card Controller User's Guide

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Procedures for Common Operations
6. Repeat step 4 and step 5 to identify and retrieve relative addresses from all remaining SD cards until
no card responds to the CMD2 command. No card responding within 5 memory clock cycles indicates
that all cards have been identified and the MMC card and the identification procedure terminates.
The sequence of events in this operation is shown in Figure 13 .
Figure 13. SD Card Identification Procedure
SPRUE30B – September 2006 Multimedia Card (MMC)/Secure Digital (SD) Card Controller 31
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