diff --git a/src/main/scala/backBoard/shin/ShinTop.scala b/src/main/scala/backBoard/shin/ShinTop.scala
index 45a6b91..70069d8 100644
--- a/src/main/scala/backBoard/shin/ShinTop.scala
+++ b/src/main/scala/backBoard/shin/ShinTop.scala
@@ -243,9 +243,9 @@ trait ShinTopSlave{ this: ShinTopBase =>
 
   when( io.modeSel === false.B ){
     slaveParser.io.downIn  <> io.downIn
-    slaveParser.io.downOut <> io.downOut
+    io.downOut <> Queue( slaveParser.io.downOut, 1, true, true)
     slaveParser.io.upIn    <> io.upIn
-    slaveParser.io.upOut   <> io.upOut
+    io.upOut   <> Queue( slaveParser.io.upOut, 1, true, true)
   }
 
   slaveParser.io.timeStamp := io.timeStamp
@@ -287,13 +287,6 @@ trait ShinTopSlave{ this: ShinTopBase =>
   }
 
 
-  when(io.modeSel === false.B ){
-    slaveParser.io.downIn  <> io.downIn
-    slaveParser.io.downOut <> io.downOut
-    slaveParser.io.upIn    <> io.upIn
-    slaveParser.io.upOut   <> io.upOut    
-  }
-
 
 }