Explicitly clone the target type in noenq() to avoid "already bound" errors for io ports.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/main/scala/chisel3/util/Decoupled.scala b/src/main/scala/chisel3/util/Decoupled.scala
index 63831d2f..5ce2583c 100644
--- a/src/main/scala/chisel3/util/Decoupled.scala
+++ b/src/main/scala/chisel3/util/Decoupled.scala
@@ -40,7 +40,8 @@ object DecoupledIO {
       */
     def noenq(): Unit = {
       target.valid := Bool(false)
-      target.bits := target.bits.fromBits(0.asUInt)
+      // We want the type from the following, not any existing binding.
+      target.bits := target.bits.cloneType.fromBits(0.asUInt)
     }
 
     /** Assert ready on this port and return the associated data bits.