diff --git a/src/main/scala/vexriscv/demo/VexRiscvCachedWishboneForSim.scala b/src/main/scala/vexriscv/demo/VexRiscvCachedWishboneForSim.scala
new file mode 100644
index 0000000..3663098
--- /dev/null
+++ b/src/main/scala/vexriscv/demo/VexRiscvCachedWishboneForSim.scala
@@ -0,0 +1,159 @@
+package vexriscv.demo
+
+import spinal.core._
+import spinal.lib._
+import spinal.lib.bus.avalon.AvalonMM
+import spinal.lib.eda.altera.{InterruptReceiverTag, QSysify, ResetEmitterTag}
+import vexriscv.ip.{DataCacheConfig, InstructionCacheConfig}
+import vexriscv.plugin._
+import vexriscv.{VexRiscv, VexRiscvConfig, plugin}
+
+/**
+ * Created by spinalvm on 14.07.17.
+ */
+//class VexRiscvAvalon(debugClockDomain : ClockDomain) extends Component{
+//
+//}
+
+//make clean run DBUS=CACHED_AVALON IBUS=CACHED_AVALON MMU=no CSR=no DEBUG_PLUGIN=AVALON
+
+object VexRiscvCachedWishboneForSim{
+  def main(args: Array[String]) {
+    val report = SpinalVerilog{
+
+      //CPU configuration
+      val cpuConfig = VexRiscvConfig(
+        plugins = List(
+          new PcManagerSimplePlugin(0x00000000l, false),
+//          new IBusSimplePlugin(
+//            interfaceKeepData = false,
+//            catchAccessFault = false
+//          ),
+//          new DBusSimplePlugin(
+//            catchAddressMisaligned = false,
+//            catchAccessFault = false
+//          ),
+          new IBusCachedPlugin(
+            config = InstructionCacheConfig(
+              cacheSize = 4096,
+              bytePerLine =32,
+              wayCount = 1,
+              addressWidth = 32,
+              cpuDataWidth = 32,
+              memDataWidth = 32,
+              catchIllegalAccess = true,
+              catchAccessFault = true,
+              catchMemoryTranslationMiss = true,
+              asyncTagMemory = false,
+              twoCycleRam = true
+            )
+            //            askMemoryTranslation = true,
+            //            memoryTranslatorPortConfig = MemoryTranslatorPortConfig(
+            //              portTlbSize = 4
+            //            )
+          ),
+          new DBusCachedPlugin(
+            config = new DataCacheConfig(
+              cacheSize         = 4096,
+              bytePerLine       = 32,
+              wayCount          = 1,
+              addressWidth      = 32,
+              cpuDataWidth      = 32,
+              memDataWidth      = 32,
+              catchAccessError  = true,
+              catchIllegal      = true,
+              catchUnaligned    = true,
+              catchMemoryTranslationMiss = true
+            ),
+            memoryTranslatorPortConfig = null
+            //            memoryTranslatorPortConfig = MemoryTranslatorPortConfig(
+            //              portTlbSize = 6
+            //            )
+          ),
+          new StaticMemoryTranslatorPlugin(
+            ioRange      = _(31 downto 28) === 0xF
+          ),
+          new DecoderSimplePlugin(
+            catchIllegalInstruction = true
+          ),
+          new RegFilePlugin(
+            regFileReadyKind = plugin.SYNC,
+            zeroBoot = false
+          ),
+          new IntAluPlugin,
+          new SrcPlugin(
+            separatedAddSub = false,
+            executeInsertion = true
+          ),
+          new FullBarrielShifterPlugin,
+          new MulPlugin,
+          new DivPlugin,
+          new HazardSimplePlugin(
+            bypassExecute           = true,
+            bypassMemory            = true,
+            bypassWriteBack         = true,
+            bypassWriteBackBuffer   = true,
+            pessimisticUseSrc       = false,
+            pessimisticWriteRegFile = false,
+            pessimisticAddressMatch = false
+          ),
+//          new DebugPlugin(ClockDomain.current.clone(reset = Bool().setName("debugReset"))),
+          new BranchPlugin(
+            earlyBranch = false,
+            catchAddressMisaligned = true,
+            prediction = STATIC
+          ),
+          new CsrPlugin(
+            config = CsrPluginConfig.small(mtvecInit = 0x80000020l)
+          ),
+          new YamlPlugin("cpu0.yaml")
+        )
+      )
+
+      //CPU instanciation
+      val cpu = new VexRiscv(cpuConfig)
+
+      //CPU modifications to be an Avalon one
+      //cpu.setDefinitionName("VexRiscvAvalon")
+      cpu.rework {
+        for (plugin <- cpuConfig.plugins) plugin match {
+//          case plugin: IBusSimplePlugin => {
+//            plugin.iBus.asDirectionLess() //Unset IO properties of iBus
+//            iBus = master(plugin.iBus.toAvalon())
+//              .setName("iBusAvalon")
+//              .addTag(ClockDomainTag(ClockDomain.current)) //Specify a clock domain to the iBus (used by QSysify)
+//          }
+          case plugin: IBusCachedPlugin => {
+            plugin.iBus.asDirectionLess() //Unset IO properties of iBus
+            master(plugin.iBus.toWishbone()).setName("iBusWishbone")
+          }
+//          case plugin: DBusSimplePlugin => {
+//            plugin.dBus.asDirectionLess()
+//            master(plugin.dBus.toAvalon())
+//              .setName("dBusAvalon")
+//              .addTag(ClockDomainTag(ClockDomain.current))
+//          }
+          case plugin: DBusCachedPlugin => {
+            plugin.dBus.asDirectionLess()
+            master(plugin.dBus.toWishbone()).setName("dBusWishbone")
+          }
+//          case plugin: DebugPlugin => {
+//            plugin.io.bus.asDirectionLess()
+//            slave(plugin.io.bus.fromAvalon())
+//              .setName("debugBusAvalon")
+//              .addTag(ClockDomainTag(plugin.debugClockDomain))
+//              .parent = null  //Avoid the io bundle to be interpreted as a QSys conduit
+//            plugin.io.resetOut
+//              .addTag(ResetEmitterTag(plugin.debugClockDomain))
+//              .parent = null //Avoid the io bundle to be interpreted as a QSys conduit
+//          }
+          case _ =>
+        }
+      }
+      cpu
+    }
+
+    //Generate the QSys TCL script to integrate the CPU
+    QSysify(report.toplevel)
+  }
+}
\ No newline at end of file
diff --git a/src/main/scala/vexriscv/ip/DataCache.scala b/src/main/scala/vexriscv/ip/DataCache.scala
index 231dd8c..bde7b6f 100644
--- a/src/main/scala/vexriscv/ip/DataCache.scala
+++ b/src/main/scala/vexriscv/ip/DataCache.scala
@@ -334,10 +334,8 @@ case class DataCacheMemBus(p : DataCacheConfig) extends Bundle with IMasterSlave
     bus.DAT_MOSI := cmdBridge.data
 
     cmdBridge.ready := bus.ACK
-    when(cmdBridge.valid) {
-      bus.CYC := True
-      bus.STB := True
-    }
+    bus.CYC := cmdBridge.valid
+    bus.STB := cmdBridge.valid
 
     rsp.valid := RegNext(bus.WE && bus.ACK) init(False)
     rsp.data  := RegNext(bus.DAT_MISO)
diff --git a/src/main/scala/vexriscv/ip/InstructionCache.scala b/src/main/scala/vexriscv/ip/InstructionCache.scala
index 03b6f2c..62b9709 100644
--- a/src/main/scala/vexriscv/ip/InstructionCache.scala
+++ b/src/main/scala/vexriscv/ip/InstructionCache.scala
@@ -178,6 +178,8 @@ case class InstructionCacheMemBus(p : InstructionCacheConfig) extends Bundle wit
     bus.SEL := "1111"
     bus.WE  := False
     bus.DAT_MOSI.assignDontCare()
+    bus.CYC := False
+    bus.STB := False
     when(cmd.valid || pending){
       bus.CYC := True
       bus.STB := True