// See LICENSE.SiFive for license details.

package uncore.apb

import Chisel._
import util.GenericParameterizedBundle

abstract class APBBundleBase(params: APBBundleParameters) extends GenericParameterizedBundle(params)

// Signal directions are from the master's point-of-view
class APBBundle(params: APBBundleParameters) extends APBBundleBase(params)
{
  // Flow control signals from the master
  val psel      = Bool(OUTPUT)
  val penable   = Bool(OUTPUT)

  // Payload signals
  val pwrite    = Bool(OUTPUT)
  val paddr     = UInt(OUTPUT, width = params.addrBits)
  val pprot     = UInt(OUTPUT, width = params.protBits)
  val pwdata    = UInt(OUTPUT, width = params.dataBits)
  val pstrb     = UInt(OUTPUT, width = params.dataBits/8)

  val pready    = Bool(INPUT)
  val pslverr   = Bool(INPUT)
  val prdata    = UInt(INPUT, width = params.dataBits)
}

object APBBundle
{
  def apply(params: APBBundleParameters) = new APBBundle(params)
}