--- a/Symbian3/PDK/Source/GUID-114A23CF-BF8B-54F5-8AF6-FEF007891884.dita	Thu Mar 11 15:24:26 2010 +0000
+++ b/Symbian3/PDK/Source/GUID-114A23CF-BF8B-54F5-8AF6-FEF007891884.dita	Thu Mar 11 18:02:22 2010 +0000
@@ -1,93 +1,93 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
-<!-- This component and the accompanying materials are made available under the terms of the License 
-"Eclipse Public License v1.0" which accompanies this distribution, 
-and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
-<!-- Initial Contributors:
-    Nokia Corporation - initial contribution.
-Contributors: 
--->
-<!DOCTYPE concept
-  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
-<concept id="GUID-114A23CF-BF8B-54F5-8AF6-FEF007891884" xml:lang="en"><title>SD Controller </title><shortdesc>Describes the Secure Digital (SD) controller supported on the Symbian
-platform. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
-<p>The SD controller provided by the Symbian platform is based on the <xref href="http://www.sdcard.org/developers/tech/sdcard/pls/Simplified_Physical_Layer_Spec.pdf" scope="external">Physical Layer Simplified Specification Version 2.00</xref> from
-the SD Card Association. </p>
-<section id="GUID-8A734E8C-CB18-48C8-9C8F-71AA6693B782"><title>Introduction</title> <p>The
-Secure Digital (SD) card protocol is implemented as a super–set of multimedia
-cards on the Symbian platform. The Multi Media Card (MMC) controller also
-supports the SD cards. The SD card controller functionality is very similar
-to the MMC controller and hence the SD card controller is provided by a set
-of SD card classes which are derived from the MMC controller classes. </p> </section>
-<section id="GUID-D41588EF-12DA-5E50-8FF4-FCE13CA81409"><title>SD Card</title> <p>The
-SD cards are flash based memory cards used in high capacity data storage in
-handheld devices like digital cameras, mobile phones and PDAs. The SD cards
-contain 9 pins and support a 4-bit data bus. SD cards are forward compatible
-with MMC and hence a device with SD card support will also support MMC cards.
-SD cards use star topology with dedicated command and data signals. </p> <p>There
-are two versions of SD cards: the standard capacity SD card which has a memory
-capacity of up to 2GB; and high capacity SD cards which have a maximum memory
-capacity of up to 32GB. The SD card functionality is provided by a layered
-architecture. The 3 layers are: </p> <ul>
-<li id="GUID-86ED75DF-68C4-5D0A-B11F-C9B52CEEC6ED"><p>File System Layer provides
-high level file operations </p> </li>
-<li id="GUID-3741FA6C-6324-59CB-B460-5BF38C87C260"><p>Media Driver layer provides
-an interface to the file system and enables low level file operations like
-read and write to a storage area </p> </li>
-<li id="GUID-2F9CA759-FCE0-57FB-B7C4-5B93D94CAEF3"><p>SD controller provides
-the low level data operations </p> </li>
-</ul> <p>The SD card stack is responsible for sending the command sequences
-to enable the communication between the SD card and file system of the Symbian
-platform. </p> </section>
-<section id="GUID-D53D0828-5579-4A4B-A611-395A3CBB34E4"><title>SD Card Controller</title> <p>The <xref href="GUID-F3BD37EC-0CCB-5859-908F-215E22C9FC20.dita">File Server</xref> uses the <xref href="GUID-2F114BC9-9B5D-5989-9CF3-37A43377DC58.dita">Media Driver</xref> to access
-user data from the SD cards. The Multi Media Card (MMC) Media Driver supports
-the SD cards on the Symbian platform. The MMC media drivers are implemented
-in <filepath>MEDMMC.PDD</filepath>. The Media Driver uses the services of
-the SD controller. The SD controller is implemented as a peripheral bus controller
-in <filepath>EPBUSSD.DLL </filepath> to support SD cards. The difference between
-the MMC controller and the SD controller is the default partition information
-and the initialization sequence used. The main functions of an SD controller
-are : </p> <ul>
-<li id="GUID-9F6B9620-8F40-532E-88AD-DEDDC1BD1A03"><p>Support the SD memory
-card initialization protocol. </p> </li>
-<li id="GUID-EAD5FB6D-8DBB-53E2-A895-13539C73F002"><p>Reading and writing
-one or more blocks from/to an SD memory card. </p> </li>
-<li id="GUID-022E3749-1739-58ED-B875-343B7048E4BA"><p>Support for 4-bit wide
-data bus option </p> </li>
-<li id="GUID-D30CAD38-3897-5899-8761-A1DEB3DBDB92"><p>Support for Erase commands
-on SD cards </p> </li>
-</ul> <p>The SD controller first detects the card present in the card port.
-There can be more than one card port available in a device. When more than
-one card is present, the controller switches between the ports to identify
-them. When it detects an SD card, the SD card initialization protocol is loaded.
-The initialization protocol is a sequence of commands as described in the <xref href="http://www.sdcard.org/developers/tech/sdcard/pls/Simplified_Physical_Layer_Spec.pdf" scope="external">SD Association</xref> specification. </p> </section>
-<section id="GUID-0EA05AC0-557D-573F-B907-41752445DC60"><title>SD controller
-classes</title> <fig id="GUID-F044A820-5E7E-5A99-83D5-7CA47EBABBC8">
-<title>              SD controller classes            </title>
-<image href="GUID-58A5C008-88B6-5C91-8BE5-E98CA5E5A438_d0e389784_href.png" placement="inline"/>
-</fig> </section>
-<section id="GUID-CC3B269D-44E9-4AB8-B93B-E1AE5DE69DDF"><title>SD Stack </title><p>The SD controller is implemented through
-a set of classes derived from the MMC controller. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DMMCStack</apiname></xref> maintains
-a state machine and is responsible for detecting the new cards and initializing
-the necessary stack. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDStack</apiname></xref> is
-initialised when the controller detects a new SD card. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDStack</apiname></xref> sends
-the commands to acquire the cards as described in the SD topology. <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDStack::InitialiseMemoryCardSM()</apiname></xref> is used to
-initialize the SD cards and <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDStack::ConfigureMemoryCardSM()</apiname></xref> is
-used to configure the card. </p></section>
-<section id="GUID-6BE6F7E7-8ECD-4604-A1DE-8096EF5B682B"><title>TSDCard</title><p>The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>TSDCard</apiname></xref> class
-provides the functions to read and write information about the card. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>PreferredWriteGroupLength</apiname></xref> returns the Erase Sector
-size of the SD card. Clients of the SD controller should use <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DMMCStack::CardP()</apiname></xref> to
-get a pointer to the card object.<xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname> TSDCard::IsCard()</apiname></xref> function
-is used to detect a SD card. </p></section>
-<section id="GUID-9D9AE44F-1E6F-4D09-9B3E-76AB3BFC42F2"><title>Omissions</title> <p>The
-Symbian platform does not support SPI mode in SD cards. </p> </section>
-<section id="GUID-A47AC10A-00E7-4647-8EDD-DC6103ECBB55"><title>Session</title><p>The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDSession</apiname></xref> class
-provides the session related functions for the SD cards. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDSession</apiname></xref> class
-creates the descriptors with command data. These commands are then sent to
-the SD cards by the controller. </p></section>
-</conbody><related-links>
-<link href="GUID-0E5A241A-19F5-5754-B454-45747A8D80E1.dita"><linktext>SD Card Overview</linktext>
-</link>
-<link href="GUID-E194A923-99E7-5DC1-BB78-D050A4793A60.dita"><linktext>SD Controller
-PSL Implementation</linktext></link>
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-114A23CF-BF8B-54F5-8AF6-FEF007891884" xml:lang="en"><title>SD Controller </title><shortdesc>Describes the Secure Digital (SD) controller supported on the Symbian
+platform. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>The SD controller provided by the Symbian platform is based on the <xref href="http://www.sdcard.org/developers/tech/sdcard/pls/Simplified_Physical_Layer_Spec.pdf" scope="external">Physical Layer Simplified Specification Version 2.00</xref> from
+the SD Card Association. </p>
+<section id="GUID-8A734E8C-CB18-48C8-9C8F-71AA6693B782"><title>Introduction</title> <p>The
+Secure Digital (SD) card protocol is implemented as a super–set of multimedia
+cards on the Symbian platform. The Multi Media Card (MMC) controller also
+supports the SD cards. The SD card controller functionality is very similar
+to the MMC controller and hence the SD card controller is provided by a set
+of SD card classes which are derived from the MMC controller classes. </p> </section>
+<section id="GUID-D41588EF-12DA-5E50-8FF4-FCE13CA81409"><title>SD Card</title> <p>The
+SD cards are flash based memory cards used in high capacity data storage in
+handheld devices like digital cameras, mobile phones and PDAs. The SD cards
+contain 9 pins and support a 4-bit data bus. SD cards are forward compatible
+with MMC and hence a device with SD card support will also support MMC cards.
+SD cards use star topology with dedicated command and data signals. </p> <p>There
+are two versions of SD cards: the standard capacity SD card which has a memory
+capacity of up to 2GB; and high capacity SD cards which have a maximum memory
+capacity of up to 32GB. The SD card functionality is provided by a layered
+architecture. The 3 layers are: </p> <ul>
+<li id="GUID-86ED75DF-68C4-5D0A-B11F-C9B52CEEC6ED"><p>File System Layer provides
+high level file operations </p> </li>
+<li id="GUID-3741FA6C-6324-59CB-B460-5BF38C87C260"><p>Media Driver layer provides
+an interface to the file system and enables low level file operations like
+read and write to a storage area </p> </li>
+<li id="GUID-2F9CA759-FCE0-57FB-B7C4-5B93D94CAEF3"><p>SD controller provides
+the low level data operations </p> </li>
+</ul> <p>The SD card stack is responsible for sending the command sequences
+to enable the communication between the SD card and file system of the Symbian
+platform. </p> </section>
+<section id="GUID-D53D0828-5579-4A4B-A611-395A3CBB34E4"><title>SD Card Controller</title> <p>The <xref href="GUID-F3BD37EC-0CCB-5859-908F-215E22C9FC20.dita">File Server</xref> uses the <xref href="GUID-2F114BC9-9B5D-5989-9CF3-37A43377DC58.dita">Media Driver</xref> to access
+user data from the SD cards. The Multi Media Card (MMC) Media Driver supports
+the SD cards on the Symbian platform. The MMC media drivers are implemented
+in <filepath>MEDMMC.PDD</filepath>. The Media Driver uses the services of
+the SD controller. The SD controller is implemented as a peripheral bus controller
+in <filepath>EPBUSSD.DLL </filepath> to support SD cards. The difference between
+the MMC controller and the SD controller is the default partition information
+and the initialization sequence used. The main functions of an SD controller
+are : </p> <ul>
+<li id="GUID-9F6B9620-8F40-532E-88AD-DEDDC1BD1A03"><p>Support the SD memory
+card initialization protocol. </p> </li>
+<li id="GUID-EAD5FB6D-8DBB-53E2-A895-13539C73F002"><p>Reading and writing
+one or more blocks from/to an SD memory card. </p> </li>
+<li id="GUID-022E3749-1739-58ED-B875-343B7048E4BA"><p>Support for 4-bit wide
+data bus option </p> </li>
+<li id="GUID-D30CAD38-3897-5899-8761-A1DEB3DBDB92"><p>Support for Erase commands
+on SD cards </p> </li>
+</ul> <p>The SD controller first detects the card present in the card port.
+There can be more than one card port available in a device. When more than
+one card is present, the controller switches between the ports to identify
+them. When it detects an SD card, the SD card initialization protocol is loaded.
+The initialization protocol is a sequence of commands as described in the <xref href="http://www.sdcard.org/developers/tech/sdcard/pls/Simplified_Physical_Layer_Spec.pdf" scope="external">SD Association</xref> specification. </p> </section>
+<section id="GUID-0EA05AC0-557D-573F-B907-41752445DC60"><title>SD controller
+classes</title> <fig id="GUID-F044A820-5E7E-5A99-83D5-7CA47EBABBC8">
+<title>              SD controller classes            </title>
+<image href="GUID-58A5C008-88B6-5C91-8BE5-E98CA5E5A438_d0e389784_href.png" placement="inline"/>
+</fig> </section>
+<section id="GUID-CC3B269D-44E9-4AB8-B93B-E1AE5DE69DDF"><title>SD Stack </title><p>The SD controller is implemented through
+a set of classes derived from the MMC controller. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DMMCStack</apiname></xref> maintains
+a state machine and is responsible for detecting the new cards and initializing
+the necessary stack. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDStack</apiname></xref> is
+initialised when the controller detects a new SD card. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDStack</apiname></xref> sends
+the commands to acquire the cards as described in the SD topology. <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDStack::InitialiseMemoryCardSM()</apiname></xref> is used to
+initialize the SD cards and <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDStack::ConfigureMemoryCardSM()</apiname></xref> is
+used to configure the card. </p></section>
+<section id="GUID-6BE6F7E7-8ECD-4604-A1DE-8096EF5B682B"><title>TSDCard</title><p>The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>TSDCard</apiname></xref> class
+provides the functions to read and write information about the card. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>PreferredWriteGroupLength</apiname></xref> returns the Erase Sector
+size of the SD card. Clients of the SD controller should use <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DMMCStack::CardP()</apiname></xref> to
+get a pointer to the card object.<xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname> TSDCard::IsCard()</apiname></xref> function
+is used to detect a SD card. </p></section>
+<section id="GUID-9D9AE44F-1E6F-4D09-9B3E-76AB3BFC42F2"><title>Omissions</title> <p>The
+Symbian platform does not support SPI mode in SD cards. </p> </section>
+<section id="GUID-A47AC10A-00E7-4647-8EDD-DC6103ECBB55"><title>Session</title><p>The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDSession</apiname></xref> class
+provides the session related functions for the SD cards. The <xref href="GUID-3DC34D4F-E693-3BF0-B5D6-DF22FCE37340.dita"><apiname>DSDSession</apiname></xref> class
+creates the descriptors with command data. These commands are then sent to
+the SD cards by the controller. </p></section>
+</conbody><related-links>
+<link href="GUID-0E5A241A-19F5-5754-B454-45747A8D80E1.dita"><linktext>SD Card Overview</linktext>
+</link>
+<link href="GUID-E194A923-99E7-5DC1-BB78-D050A4793A60.dita"><linktext>SD Controller
+PSL Implementation</linktext></link>
 </related-links></concept>
\ No newline at end of file