Subversion Repositories neorv32

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-- # << NEORV32 - Processor-internal data memory (DMEM) >>                                         #

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-- # BSD 3-Clause License                                                                          #

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-- # Copyright (c) 2021, Stephan Nolting. All rights reserved.                                     #

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-- # The NEORV32 Processor - https://github.com/stnolting/neorv32              (c) Stephan Nolting #

-- #################################################################################################

library ieee;

use ieee.std_logic_1164.all;

use ieee.numeric_std.all;

entity neorv32_dmem is

  generic (

    DMEM_BASE : std_ulogic_vector(31 downto 0); -- memory base address

    DMEM_SIZE : natural -- processor-internal instruction memory size in bytes

  );

  port (

    clk_i  : in  std_ulogic; -- global clock line

    rden_i : in  std_ulogic; -- read enable

    wren_i : in  std_ulogic; -- write enable

    ben_i  : in  std_ulogic_vector(03 downto 0); -- byte write enable

    addr_i : in  std_ulogic_vector(31 downto 0); -- address

    data_i : in  std_ulogic_vector(31 downto 0); -- data in

    data_o : out std_ulogic_vector(31 downto 0); -- data out

    ack_o  : out std_ulogic -- transfer acknowledge

  );

end neorv32_dmem;