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    /System09/trunk
    from Rev 181 to Rev 182
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Rev 181 → Rev 182

/src/Flex9/flex9ram.vhd
0,0 → 1,618
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_arith.all;
library unisim;
use unisim.vcomponents.all;
 
entity FLEX9_C000 is
port(
clk : in std_logic;
rst : in std_logic;
cs : in std_logic;
rw : in std_logic;
addr : in std_logic_vector(10 downto 0);
data_out : out std_logic_vector(7 downto 0);
data_in : in std_logic_vector(7 downto 0)
);
end FLEX9_C000;
 
architecture rtl of FLEX9_C000 is
 
type data_array is array(0 to 0) of std_logic_vector(7 downto 0);
signal xdata : data_array;
signal en : std_logic_vector(0 downto 0);
signal dp : std_logic_vector(0 downto 0);
signal we : std_logic;
 
begin
 
ROM00: RAMB16_S9
generic map (
INIT_00 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_01 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_02 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_03 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_04 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_05 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_06 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_07 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_08 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_09 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_10 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_11 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_12 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_13 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_14 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_15 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_16 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_17 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_18 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_19 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_20 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_21 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_22 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_23 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_24 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_25 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_26 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_27 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_28 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_29 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_30 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_31 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_32 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_33 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_34 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_35 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_36 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_37 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_38 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_39 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3f => x"0000000000000000000000000000000000000000000000000000000000000000"
)
port map (
CLK => clk,
SSR => rst,
EN => en(0),
WE => we,
ADDR => addr(10 downto 0),
DI => data_in,
DIP(0) => dp(0),
DO => xdata(0),
DOP(0) => dp(0)
);
rom_glue: process (cs, rw, addr, xdata)
begin
en(0) <= cs;
data_out <= xdata(0);
we <= not rw;
end process;
end architecture rtl;
 
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_arith.all;
library unisim;
use unisim.vcomponents.all;
 
entity FLEX9_C800 is
port(
clk : in std_logic;
rst : in std_logic;
cs : in std_logic;
rw : in std_logic;
addr : in std_logic_vector(10 downto 0);
data_out : out std_logic_vector(7 downto 0);
data_in : in std_logic_vector(7 downto 0)
);
end FLEX9_C800;
 
architecture rtl of FLEX9_C800 is
 
type data_array is array(0 to 0) of std_logic_vector(7 downto 0);
signal xdata : data_array;
signal en : std_logic_vector(0 downto 0);
signal dp : std_logic_vector(0 downto 0);
signal we : std_logic;
 
begin
 
ROM00: RAMB16_S9
generic map (
INIT_00 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_01 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_02 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_03 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_04 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_05 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_06 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_07 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_08 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_09 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_10 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_11 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_12 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_13 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_14 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_15 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_16 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_17 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_18 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_19 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_20 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_21 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_22 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_23 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_24 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_25 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_26 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_27 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_28 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_29 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_30 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_31 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_32 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_33 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_34 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_35 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_36 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_37 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_38 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_39 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3f => x"0000000000000000000000000000000000000000000000000000000000000000"
)
port map (
CLK => clk,
SSR => rst,
EN => en(0),
WE => we,
ADDR => addr(10 downto 0),
DI => data_in,
DIP(0) => dp(0),
DO => xdata(0),
DOP(0) => dp(0)
);
rom_glue: process (cs, rw, addr, xdata)
begin
en(0) <= cs;
data_out <= xdata(0);
we <= not rw;
end process;
end architecture rtl;
 
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_arith.all;
library unisim;
use unisim.vcomponents.all;
 
entity FLEX9_D000 is
port(
clk : in std_logic;
rst : in std_logic;
cs : in std_logic;
rw : in std_logic;
addr : in std_logic_vector(10 downto 0);
data_out : out std_logic_vector(7 downto 0);
data_in : in std_logic_vector(7 downto 0)
);
end FLEX9_D000;
 
architecture rtl of FLEX9_D000 is
 
type data_array is array(0 to 0) of std_logic_vector(7 downto 0);
signal xdata : data_array;
signal en : std_logic_vector(0 downto 0);
signal dp : std_logic_vector(0 downto 0);
signal we : std_logic;
 
begin
 
ROM00: RAMB16_S9
generic map (
INIT_00 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_01 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_02 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_03 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_04 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_05 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_06 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_07 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_08 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_09 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_10 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_11 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_12 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_13 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_14 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_15 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_16 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_17 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_18 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_19 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_20 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_21 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_22 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_23 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_24 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_25 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_26 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_27 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_28 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_29 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_30 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_31 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_32 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_33 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_34 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_35 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_36 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_37 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_38 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_39 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3f => x"0000000000000000000000000000000000000000000000000000000000000000"
)
port map (
CLK => clk,
SSR => rst,
EN => en(0),
WE => we,
ADDR => addr(10 downto 0),
DI => data_in,
DIP(0) => dp(0),
DO => xdata(0),
DOP(0) => dp(0)
);
rom_glue: process (cs, rw, addr, xdata)
begin
en(0) <= cs;
data_out <= xdata(0);
we <= not rw;
end process;
end architecture rtl;
 
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_arith.all;
library unisim;
use unisim.vcomponents.all;
 
entity FLEX9_D800 is
port(
clk : in std_logic;
rst : in std_logic;
cs : in std_logic;
rw : in std_logic;
addr : in std_logic_vector(10 downto 0);
data_out : out std_logic_vector(7 downto 0);
data_in : in std_logic_vector(7 downto 0)
);
end FLEX9_D800;
 
architecture rtl of FLEX9_D800 is
 
type data_array is array(0 to 0) of std_logic_vector(7 downto 0);
signal xdata : data_array;
signal en : std_logic_vector(0 downto 0);
signal dp : std_logic_vector(0 downto 0);
signal we : std_logic;
 
begin
 
ROM00: RAMB16_S9
generic map (
INIT_00 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_01 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_02 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_03 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_04 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_05 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_06 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_07 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_08 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_09 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_0f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_10 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_11 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_12 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_13 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_14 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_15 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_16 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_17 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_18 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_19 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_1f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_20 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_21 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_22 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_23 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_24 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_25 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_26 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_27 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_28 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_29 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_2f => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_30 => x"0000C3007EBF007EA7007EA3007E9F007E6C007E63007E5F007E5B007E57007E",
INIT_31 => x"0000000000000000000000000000FFFF40100302010000000000000000000000",
INIT_32 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_33 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_34 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_35 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_36 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_37 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_38 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_39 => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3a => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3b => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3c => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3d => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3e => x"0000000000000000000000000000000000000000000000000000000000000000",
INIT_3f => x"0000000000000000000000000000000000000000000000000000000000000000"
)
port map (
CLK => clk,
SSR => rst,
EN => en(0),
WE => we,
ADDR => addr(10 downto 0),
DI => data_in,
DIP(0) => dp(0),
DO => xdata(0),
DOP(0) => dp(0)
);
rom_glue: process (cs, rw, addr, xdata)
begin
en(0) <= cs;
data_out <= xdata(0);
we <= not rw;
end process;
end architecture rtl;
 
--
-- Flex9 O/S Initialised 8KByte RAM
--
-- v1.0 - 22 December 2006 - John Kent
-- v1.1 - 1 February 2008 - David Burnette
-- reworked to use autogenerated block ram utility
 
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
library unisim;
use unisim.vcomponents.all;
 
entity flex_ram is
Port (
clk : in std_logic;
rst : in std_logic;
cs : in std_logic;
rw : in std_logic;
addr : in std_logic_vector (12 downto 0);
data_out : out std_logic_vector (7 downto 0);
data_in : in std_logic_vector (7 downto 0)
);
end flex_ram;
 
architecture rtl of flex_ram is
 
signal we : std_logic;
signal cs0 : std_logic;
signal cs1 : std_logic;
signal cs2 : std_logic;
signal cs3 : std_logic;
signal dp0 : std_logic;
signal dp1 : std_logic;
signal dp2 : std_logic;
signal dp3 : std_logic;
signal rdata0 : std_logic_vector(7 downto 0);
signal rdata1 : std_logic_vector(7 downto 0);
signal rdata2 : std_logic_vector(7 downto 0);
signal rdata3 : std_logic_vector(7 downto 0);
 
component FLEX9_C000
Port (
clk : in std_logic;
rst : in std_logic;
cs : in std_logic;
rw : in std_logic;
addr : in std_logic_vector (10 downto 0);
data_out : out std_logic_vector (7 downto 0);
data_in : in std_logic_vector (7 downto 0)
);
end component;
component FLEX9_C800
Port (
clk : in std_logic;
rst : in std_logic;
cs : in std_logic;
rw : in std_logic;
addr : in std_logic_vector (10 downto 0);
data_out : out std_logic_vector (7 downto 0);
data_in : in std_logic_vector (7 downto 0)
);
end component;
component FLEX9_D000
Port (
clk : in std_logic;
rst : in std_logic;
cs : in std_logic;
rw : in std_logic;
addr : in std_logic_vector (10 downto 0);
data_out : out std_logic_vector (7 downto 0);
data_in : in std_logic_vector (7 downto 0)
);
end component;
component FLEX9_D800
Port (
clk : in std_logic;
rst : in std_logic;
cs : in std_logic;
rw : in std_logic;
addr : in std_logic_vector (10 downto 0);
data_out : out std_logic_vector (7 downto 0);
data_in : in std_logic_vector (7 downto 0)
);
end component;
 
begin
 
addr_c000 : FLEX9_C000 port map (
clk => clk,
rst => rst,
cs => cs0,
rw => rw,
addr => addr(10 downto 0),
data_in => data_in,
data_out => rdata0
);
 
addr_c800 : FLEX9_C800 port map (
clk => clk,
rst => rst,
cs => cs1,
rw => rw,
addr => addr(10 downto 0),
data_in => data_in,
data_out => rdata1
);
addr_d000 : FLEX9_D000 port map (
clk => clk,
rst => rst,
cs => cs2,
rw => rw,
addr => addr(10 downto 0),
data_in => data_in,
data_out => rdata2
);
addr_d800 : FLEX9_D800 port map (
clk => clk,
rst => rst,
cs => cs3,
rw => rw,
addr => addr(10 downto 0),
data_in => data_in,
data_out => rdata3
);
 
my_flex : process ( rw, addr, cs, rdata0, rdata1, rdata2, rdata3 )
begin
we <= not rw;
case addr(12 downto 11) is
when "00" =>
cs0 <= cs;
cs1 <= '0';
cs2 <= '0';
cs3 <= '0';
data_out <= rdata0;
when "01" =>
cs0 <= '0';
cs1 <= cs;
cs2 <= '0';
cs3 <= '0';
data_out <= rdata1;
when "10" =>
cs0 <= '0';
cs1 <= '0';
cs2 <= cs;
cs3 <= '0';
data_out <= rdata2;
when "11" =>
cs0 <= '0';
cs1 <= '0';
cs2 <= '0';
cs3 <= cs;
data_out <= rdata3;
when others =>
null;
end case;
end process;
 
end architecture rtl;
 

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