diff options
Diffstat (limited to 'src/main')
| -rw-r--r-- | src/main/scala/Chisel/util/Decoupled.scala | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/src/main/scala/Chisel/util/Decoupled.scala b/src/main/scala/Chisel/util/Decoupled.scala index 23a08d52..e06e899a 100644 --- a/src/main/scala/Chisel/util/Decoupled.scala +++ b/src/main/scala/Chisel/util/Decoupled.scala @@ -22,21 +22,29 @@ object Decoupled { def apply[T <: Data](gen: T): DecoupledIO[T] = new DecoupledIO(gen) } -/** An I/O bundle for enqueuing data with valid/ready handshaking */ +/** An I/O bundle for enqueuing data with valid/ready handshaking + * initialization must be handled, if necessary, by the parent circuit + */ class EnqIO[T <: Data](gen: T) extends DecoupledIO(gen) { def enq(dat: T): T = { valid := Bool(true); bits := dat; dat } - valid := Bool(false) - for (io <- bits.flatten) - io := UInt(0) + def init(): Unit = { + valid := Bool(false) + for (io <- bits.flatten) + io := UInt(0) + } override def cloneType: this.type = { new EnqIO(gen).asInstanceOf[this.type]; } } -/** An I/O bundle for dequeuing data with valid/ready handshaking */ +/** An I/O bundle for dequeuing data with valid/ready handshaking + * initialization must be handled, if necessary, by the parent circuit + */ class DeqIO[T <: Data](gen: T) extends DecoupledIO(gen) with Flipped { - ready := Bool(false) def deq(b: Boolean = false): T = { ready := Bool(true); bits } + def init(): Unit = { + ready := Bool(false) + } override def cloneType: this.type = { new DeqIO(gen).asInstanceOf[this.type]; } } @@ -54,7 +62,7 @@ class DecoupledIOC[+T <: Data](gen: T) extends Bundle class QueueIO[T <: Data](gen: T, entries: Int) extends Bundle { /** I/O to enqueue data, is [[Chisel.DecoupledIO]] flipped */ - val enq = Decoupled(gen.cloneType).flip + val enq = Decoupled(gen.cloneType).flip() /** I/O to enqueue data, is [[Chisel.DecoupledIO]]*/ val deq = Decoupled(gen.cloneType) /** The current amount of data in the queue */ |
