diff --git a/src/main/scala/backBoard/shin/Interface.scala b/src/main/scala/backBoard/shin/Interface.scala
index e2d8740..6064304 100644
--- a/src/main/scala/backBoard/shin/Interface.scala
+++ b/src/main/scala/backBoard/shin/Interface.scala
@@ -869,7 +869,7 @@ trait InterfaceSync{ this: InterfaceBase =>
 
   when( io.lvds.isEnW ){
 
-    when( io.lvds.addrw === "h120".U ){
+    when( sReg.isLVDSWriteAble & io.lvds.addrw === "h120".U ){
       syncCfg := io.lvds.dataw
     }
 
@@ -897,7 +897,9 @@ trait InterfaceSync{ this: InterfaceBase =>
       syncPoint_WRCopy := Cat( syncPoint_WRCopy(63,56), io.lvds.dataw, syncPoint_WRCopy(47,0) ) 
     } .elsewhen( io.lvds.addrw === "h137".U ){
       syncPoint_WRCopy := Cat( io.lvds.dataw, syncPoint_WRCopy(55,0) )
-      syncPoint        := Cat( io.lvds.dataw, syncPoint_WRCopy(55,0) ) 
+      when( sReg.isLVDSWriteAble ){
+        syncPoint := Cat( io.lvds.dataw, syncPoint_WRCopy(55,0) ) 
+      }
     }
 
     .elsewhen( io.lvds.addrw === "h138".U ){