feat: add core io define

Author: maksyuki

rtl/tc_l3/src/main/scala/core/Core.scala

@@ -3,7 +3,23 @@ package treecorel3
 import chisel._
 import chisel.uitl._
 
+class HostIO(implicit p: Parameters) extends Bundle {
+  val fromhost = Flipped(Valid(UInt(xlen.W)))
+  val tohost   = Output(UInt(xlen.W))
+}
+
+class CoreIO(implicit p: Parameters) extends Bundle {
+  val host   = new HostIO
+  val icache = Flipped((new CacheIO))
+  val dcache = Flipped((new CacheIO))
+}
+
 class Core(implicit val p: Parameters) extends Module {
+  val io    = IO(new CoreIO)
   val dpath = Module(new DataPath)
   val ctrl  = Module(new Control)
+
+  io.icache <> dpath.io.icache
+  io.dcache <> dpath.io.dcache
+  ctrl.io   <> dpath.io.ctrl
 }