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• spinalhdl-lib_2.12
• 1.8.0
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• WishboneGpio.scala

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spinal.lib.bus.wishbone.WishboneGpio.scala Maven / Gradle / Ivy

package spinal.lib.bus.wishbone

import spinal.core._
import spinal.lib._
import spinal.lib.io.TriStateArray
import spinal.lib.bus.wishbone._

class WishboneGpio(config : WishboneConfig, gpioWidth : Int) extends Component{
  val io = new Bundle{
    val wb = slave(Wishbone(config))
    val gpio = master(TriStateArray(gpioWidth bits))
  }

  val ctrl = WishboneSlaveFactory(io.wb)

  ctrl.read(io.gpio.read, 0)
  ctrl.driveAndRead(io.gpio.write, 4)
  ctrl.driveAndRead(io.gpio.writeEnable, 8)
  io.gpio.writeEnable.getDrivingReg() init(0)
}