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library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity bram is
generic (
addr_width : integer := 8;
data_width : integer := 32
);
port (
clk : in std_logic;
we : in std_logic;
re : in std_logic;
waddr : in std_logic_vector(addr_width-1 downto 0);
raddr : in std_logic_vector(addr_width-1 downto 0);
wdata : in std_logic_vector(data_width-1 downto 0);
rdata : out std_logic_vector(data_width-1 downto 0)
);
end bram;
architecture rtl of bram is
type mem_type is array (0 to (2**addr_width)-1) of std_logic_vector(data_width-1 downto 0);
signal mem : mem_type;
begin
process(clk)
begin
if rising_edge(clk) then
if we = '1' then
mem(to_integer(unsigned(waddr))) <= wdata;
end if;
if re = '1' then
rdata <= mem(to_integer(unsigned(raddr)));
end if;
end if;
end process;
end rtl;
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