spinal.lib.io.TriState.scala Maven / Gradle / Ivy

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package spinal.lib.io

import spinal.core._
import spinal.lib.IMasterSlave

case class TriState[T <: Data](dataType : HardType[T]) extends Bundle with IMasterSlave{
  val read,write : T = dataType()
  val writeEnable = Bool

  override def asMaster(): Unit = {
    out(write,writeEnable)
    in(read)
  }
}


object TriStateArray{
  def apply(width : BitCount) : TriStateArray = TriStateArray(width.value)
}

case class TriStateArray(width : Int) extends Bundle with IMasterSlave{
  val read,write,writeEnable = Bits(width bits)

  override def asMaster(): Unit = {
    out(write,writeEnable)
    in(read)
  }
}


case class TriStateOutput[T <: Data](dataType : HardType[T]) extends Bundle with IMasterSlave{
  val write : T = dataType()
  val writeEnable = Bool

  override def asMaster(): Unit = {
    out(write,writeEnable)
  }
}