Subversion Repositories astron_pipeline

-------------------------------------------------------------------------------

--

-- Copyright 2020

-- ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>

-- P.O.Box 2, 7990 AA Dwingeloo, The Netherlands

-- 

-- 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.

--

-------------------------------------------------------------------------------

LIBRARY IEEE, common_pkg_lib, dp_pkg_lib;

USE IEEE.std_logic_1164.all;

USE dp_pkg_lib.dp_stream_pkg.ALL;

-- Purpose:

--   Pipeline array of g_nof_streams by g_pipeline cycles.

-- Description:

--   See dp_pipeline.

ENTITY dp_pipeline_arr IS

  GENERIC (

    g_nof_streams : NATURAL := 1;

    g_pipeline    : NATURAL := 1  -- 0 for wires, > 0 for registers, 

  );

  PORT (

    rst          : IN  STD_LOGIC;

    clk          : IN  STD_LOGIC;

    -- ST sink

    snk_out_arr  : OUT t_dp_siso_arr(g_nof_streams-1 DOWNTO 0);

    snk_in_arr   : IN  t_dp_sosi_arr(g_nof_streams-1 DOWNTO 0);

    -- ST source

    src_in_arr   : IN  t_dp_siso_arr(g_nof_streams-1 DOWNTO 0) := (OTHERS=>c_dp_siso_rdy);

    src_out_arr  : OUT t_dp_sosi_arr(g_nof_streams-1 DOWNTO 0)

  );

END dp_pipeline_arr;

ARCHITECTURE str OF dp_pipeline_arr IS

BEGIN

  gen_nof_streams : FOR I IN 0 TO g_nof_streams-1 GENERATE

    u_p : ENTITY work.dp_pipeline

    GENERIC MAP (

      g_pipeline => g_pipeline

    )

    PORT MAP (

      rst          => rst,

      clk          => clk,

      -- ST sink

      snk_out      => snk_out_arr(I),

      snk_in       => snk_in_arr(I),

      -- ST source

      src_in       => src_in_arr(I),

      src_out      => src_out_arr(I)

    );

  END GENERATE;

END str;