src/main/scala/devices/i2c/I2CPins.scala

   1 // See LICENSE for license details.
   2 package sifive.blocks.devices.i2c
   3
   4 import Chisel._
   5 import sifive.blocks.devices.pinctrl.{Pin, PinCtrl}
   6 import sifive.blocks.util.ShiftRegisterInit
   7
   8
   9 class I2CPins[T <: Pin](pingen: () => T) extends Bundle {
  10
  11   val scl: T = pingen()
  12   val sda: T = pingen()
  13
  14   def fromI2CPort(i2c: I2CPort, syncStages: Int = 0) = {
  15     scl.outputPin(i2c.scl.out, pue=true.B, ie = true.B)
  16     scl.o.oe := i2c.scl.oe
  17     i2c.scl.in := ShiftRegisterInit(scl.i.ival, syncStages, Bool(true))
  18
  19     sda.outputPin(i2c.sda.out, pue=true.B, ie = true.B)
  20     sda.o.oe := i2c.sda.oe
  21     i2c.sda.in := ShiftRegisterInit(sda.i.ival, syncStages, Bool(true))
  22   }
  23 }