diff --git a/src/main/java/de/neemann/digital/testing/parser/ModelInitializer.java b/src/main/java/de/neemann/digital/testing/parser/ModelInitializer.java
index b5af867ec..45ffc9d1b 100644
--- a/src/main/java/de/neemann/digital/testing/parser/ModelInitializer.java
+++ b/src/main/java/de/neemann/digital/testing/parser/ModelInitializer.java
@@ -10,6 +10,7 @@ import de.neemann.digital.core.Node;
 import de.neemann.digital.core.Signal;
 import de.neemann.digital.core.memory.DataField;
 import de.neemann.digital.core.memory.ProgramMemory;
+import de.neemann.digital.core.memory.RAMInterface;
 import de.neemann.digital.lang.Lang;
 import de.neemann.digital.testing.TestingDataException;
 
@@ -35,8 +36,8 @@ public class ModelInitializer {
         inits.add(new InitProgramMemory(memory));
     }
 
-    void initMemory(String ramName, DataField memory) {
-        inits.add(new InitMemory(ramName, memory));
+    void initMemory(String ramName, int addr, long value) {
+        inits.add(new InitMemory(ramName, addr, value));
     }
 
     /**
@@ -96,21 +97,23 @@ public class ModelInitializer {
 
     private static final class InitMemory implements ModelInit {
         private final String memoryName;
-        private final DataField memory;
+        private final int addr;
+        private final long value;
 
-        private InitMemory(String memoryName, DataField memory) {
+        private InitMemory(String memoryName, int addr, long value) {
             this.memoryName = memoryName;
-            this.memory = memory;
+            this.addr = addr;
+            this.value = value;
         }
 
         @Override
         public void init(Model model) throws TestingDataException {
-            List<Node> nodes = model.findNode(n -> n instanceof ProgramMemory && ((ProgramMemory) n).getLabel().equals(memoryName));
+            List<Node> nodes = model.findNode(n -> n instanceof RAMInterface && ((RAMInterface) n).getLabel().equals(memoryName));
             switch (nodes.size()) {
                 case 0:
                     throw new TestingDataException(Lang.get("err_noMemoryFound", memoryName));
                 case 1:
-                    ((ProgramMemory) nodes.get(0)).setProgramMemory(memory);
+                    ((RAMInterface) nodes.get(0)).getMemory().setData(addr, value);
                     break;
                 default:
                     throw new TestingDataException(Lang.get("err_multipleMemoriesFound", memoryName));
diff --git a/src/main/java/de/neemann/digital/testing/parser/Parser.java b/src/main/java/de/neemann/digital/testing/parser/Parser.java
index be8a8e8f6..80829ee2e 100644
--- a/src/main/java/de/neemann/digital/testing/parser/Parser.java
+++ b/src/main/java/de/neemann/digital/testing/parser/Parser.java
@@ -128,7 +128,15 @@ public class Parser {
                     tok.consume();
                     expect(Tokenizer.Token.IDENT);
                     final String ramName = tok.getIdent();
-                    modelInit.initMemory(ramName, parseData());
+                    expect(Tokenizer.Token.OPEN);
+                    expect(Tokenizer.Token.NUMBER);
+                    long addr = convToLong(tok.getIdent());
+                    expect(Tokenizer.Token.CLOSE);
+                    expect(Tokenizer.Token.EQUAL);
+                    expect(Tokenizer.Token.NUMBER);
+                    long val = convToLong(tok.getIdent());
+                    expect(Tokenizer.Token.SEMICOLON);
+                    modelInit.initMemory(ramName, (int) addr, val);
                     break;
                 case PROGRAM:
                     tok.consume();
diff --git a/src/test/java/de/neemann/digital/testing/parser/ModelInitializerTest.java b/src/test/java/de/neemann/digital/testing/parser/ModelInitializerTest.java
index 5efb2386d..d8591a705 100644
--- a/src/test/java/de/neemann/digital/testing/parser/ModelInitializerTest.java
+++ b/src/test/java/de/neemann/digital/testing/parser/ModelInitializerTest.java
@@ -59,7 +59,8 @@ public class ModelInitializerTest extends TestCase {
 
     public void test_ram() throws IOException, ParserException, TestingDataException {
         ModelInitializer mi = new Parser("A B Y\n" +
-                "memory myRam (1,2)\n" +
+                "memory myRam(0)=1;\n" +
+                "memory myRam(1)=2;\n" +
                 "1 1 1").parse().getModelInitializer();
 
         Model m = new Model();