diff --git a/debug/org.eclipse.cdt.debug.mi.core/src/org/eclipse/cdt/debug/mi/core/cdi/MemoryManager.java b/debug/org.eclipse.cdt.debug.mi.core/src/org/eclipse/cdt/debug/mi/core/cdi/MemoryManager.java
index c355245982a..e66d09782e2 100644
--- a/debug/org.eclipse.cdt.debug.mi.core/src/org/eclipse/cdt/debug/mi/core/cdi/MemoryManager.java
+++ b/debug/org.eclipse.cdt.debug.mi.core/src/org/eclipse/cdt/debug/mi/core/cdi/MemoryManager.java
@@ -44,13 +44,7 @@ public class MemoryManager extends SessionObject implements ICDIMemoryManager {
 		for (int i = 0; i < blocks.length; i++) {
 			if (! blocks[i].isFrozen()) {
 				try {
-					MemoryBlock block = cloneBlock(blocks[i]);
-					Long[] array = compareBlocks(blocks[i], block);
-					if (array.length > 0) {
-						eventList.add(new MIMemoryChangedEvent(array));
-					}
-					// Update the block MIDataReadMemoryInfo.
-					blocks[i].setMIDataReadMemoryInfo(block.getMIDataReadMemoryInfo());
+					update(blocks[i], eventList);
 				} catch (CDIException e) {
 				}
 			}
@@ -59,6 +53,24 @@ public class MemoryManager extends SessionObject implements ICDIMemoryManager {
 		mi.fireEvents(events);
 	}
 
+	/**
+	 * update one Block.
+	 */
+	public void update(MemoryBlock block, List aList) throws CDIException {
+		MemoryBlock newBlock = cloneBlock(block);
+		Long[] array = compareBlocks(block, newBlock);
+		// Update the block MIDataReadMemoryInfo.
+		block.setMIDataReadMemoryInfo(newBlock.getMIDataReadMemoryInfo());
+		if (array.length > 0) {
+			if (aList != null) {
+				aList.add(new MIMemoryChangedEvent(array));
+			} else {
+				MISession mi = getCSession().getMISession();
+				mi.fireEvent(new MIMemoryChangedEvent(array));
+			}
+		}
+	}
+
 	/**
 	 * @return the registers MemoryBlock.
 	 */