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AS3525 Datasheet(PDF) 56 Page - ams AG

Part # AS3525
Description  Advanced Audio Processor System
PDF  194 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3525 Datasheet(HTML) 56 Page - ams AG

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AS3525-A/-B C22O22
Data Sheet, Confidential
© 2005-2009, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com
Revision 1.13
56
- 194
7.3.5 MCI – SD / MMC Card Interface
Features
•
Conformance to Multimedia Card Specification v2.11
•
Conformance to Secure Digital Memory Card Physical Layer Specification, v0.96
•
uses multimedia card bus or SD card bus.
The PrimeCell™ MCI provides an interface between the APB system bus and multimedia and/or secure digital memory cards. It consists of two
parts:
•
The PrimeCell™ MCI adapter block includes the clock generation unit, the power management control, command and data
transfer
•
the APB interface provides access to the MCI adapter registers, and generates interrupt and DMA request signals.
Figure 21 Multimedia Card Interface Block Diagram
The connections to the Multimedia Card Interface are shared with the General Purpose I/O port-D (GPIO xpd[0:7]). Following diagram shows the
external circuit elements for connection to a SD card adapter. Note that a feedback clock must be routed back to xpd[6]/mci_fbclk.
Figure 22 Connecting SD / MC to GPIO-D



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