| // Copyright 2024 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package chai |
| |
| import chisel3._ |
| import chisel3.util._ |
| |
| class Uart(tlul_p: kelvin.TLULParameters) extends BlackBox { |
| val io = IO(new Bundle { |
| val clk_i = Input(Clock()) |
| val rst_ni = Input(AsyncReset()) |
| |
| val tl_i = Input(new kelvin.TileLinkULIO_H2D(tlul_p)) |
| val tl_o = Output(new kelvin.TileLinkULIO_D2H(tlul_p)) |
| |
| // These have some alert_{rx|tx}_t types. |
| val alert_rx_i = Input(UInt(4.W)) |
| val alert_tx_o = Output(UInt(2.W)) |
| |
| val cio_rx_i = Input(Bool()) |
| val cio_tx_o = Output(Bool()) |
| val cio_tx_en_o = Output(Bool()) |
| |
| val intr_tx_watermark_o = Output(Bool()) |
| val intr_rx_watermark_o = Output(Bool()) |
| val intr_tx_empty_o = Output(Bool()) |
| val intr_rx_overflow_o = Output(Bool()) |
| val intr_rx_frame_err_o = Output(Bool()) |
| val intr_rx_break_err_o = Output(Bool()) |
| val intr_rx_timeout_o = Output(Bool()) |
| val intr_rx_parity_err_o = Output(Bool()) |
| }) |
| } |