diff options
Diffstat (limited to 'zpu/hdl/zpu4/dummyfpgalib/ddrsdram/src/ddr_pkg.vhd')
| -rw-r--r-- | zpu/hdl/zpu4/dummyfpgalib/ddrsdram/src/ddr_pkg.vhd | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/zpu/hdl/zpu4/dummyfpgalib/ddrsdram/src/ddr_pkg.vhd b/zpu/hdl/zpu4/dummyfpgalib/ddrsdram/src/ddr_pkg.vhd deleted file mode 100644 index 95f4b8a..0000000 --- a/zpu/hdl/zpu4/dummyfpgalib/ddrsdram/src/ddr_pkg.vhd +++ /dev/null @@ -1,90 +0,0 @@ -library IEEE;
-use IEEE.STD_LOGIC_1164.all;
-use IEEE.STD_LOGIC_UNSIGNED.ALL;
-
-package ddr is
-
- component ddr_top
- generic(
- simulate_io_time : boolean := false);
- port ( -- Asyncronous reset and clocks
- areset : in std_logic;
- cpu_clk : in std_logic;
- cpu_clk_2x : in std_logic;
- cpu_clk_4x : in std_logic;
- ddr_in_clk : in std_logic;
- ddr_in_clk_2x : in std_logic;
-
- -- Command interface
- ddr_command : in std_logic_vector(15 downto 0);
- ddr_command_we : in std_logic;
- refresh_en : in std_logic;
-
-
- -- Data interface signals
- ddr_data_read : out std_logic_vector(31 downto 0); -- Data read from DDR SDRAM
- ddr_data_write : in std_logic_vector(35 downto 0); -- Data to be written to DDR SDRAM
- ddr_req_adr : in std_logic_vector(23 downto 1); -- Request address
- ddr_req : in std_logic; -- Request DDR SDRAM access
- ddr_req_ack : out std_logic; -- Request acknowledge
- ddr_busy : out std_logic; -- Request acknowledge
- ddr_rd_wr_n : in std_logic; -- Access type 1=READ, 0=WRITE
- ddr_req_len : in std_logic; -- Number of 16-bits words to transfer (0=2, 1=8)
- ddr_read_en : out std_logic; -- Enable signal for read data
- ddr_write_en : out std_logic; -- Enable (read) signal for data write
-
- -- DDR SDRAM Signals
- sdr_clk_p : out std_logic; -- ddr_sdram_clock
- sdr_clk_n_p : out std_logic; -- /ddr_sdram_clock
- cke_q_p : out std_logic; -- clock enable
- cs_qn_p : out std_logic; -- /chip select
- ras_qn_p : inout std_logic; -- /ras
- cas_qn_p : inout std_logic; -- /cas
- we_qn_p : inout std_logic; -- /write enable
- dm_q_p : out std_logic_vector(1 downto 0); -- data mask bits, set to "00"
- dqs_q_p : out std_logic_vector(1 downto 0); -- data strobe, only for write
- ba_q_p : out std_logic_vector(1 downto 0); -- bank select
- sdr_a_p : out std_logic_vector(12 downto 0); -- address bus
- sdr_d_p : inout std_logic_vector(15 downto 0)); -- bidir data bus
- end component;
-
- component MT46V16M16
- GENERIC ( -- Timing for -75Z CL2
- tCK : TIME := 7.500 ns;
- tCH : TIME := 3.375 ns; -- 0.45*tCK
- tCL : TIME := 3.375 ns; -- 0.45*tCK
- tDH : TIME := 0.500 ns;
- tDS : TIME := 0.500 ns;
- tIH : TIME := 0.900 ns;
- tIS : TIME := 0.900 ns;
- tMRD : TIME := 15.000 ns;
- tRAS : TIME := 40.000 ns;
- tRAP : TIME := 20.000 ns;
- tRC : TIME := 65.000 ns;
- tRFC : TIME := 75.000 ns;
- tRCD : TIME := 20.000 ns;
- tRP : TIME := 20.000 ns;
- tRRD : TIME := 15.000 ns;
- tWR : TIME := 15.000 ns;
- addr_bits : INTEGER := 13;
- data_bits : INTEGER := 16;
- cols_bits : INTEGER := 9
- );
- PORT (
- Dq : INOUT STD_LOGIC_VECTOR (data_bits - 1 DOWNTO 0) := (OTHERS => 'Z');
- Dqs : INOUT STD_LOGIC_VECTOR (1 DOWNTO 0) := "ZZ";
- Addr : IN STD_LOGIC_VECTOR (addr_bits - 1 DOWNTO 0);
- Ba : IN STD_LOGIC_VECTOR (1 DOWNTO 0);
- Clk : IN STD_LOGIC;
- Clk_n : IN STD_LOGIC;
- Cke : IN STD_LOGIC;
- Cs_n : IN STD_LOGIC;
- Ras_n : IN STD_LOGIC;
- Cas_n : IN STD_LOGIC;
- We_n : IN STD_LOGIC;
- Dm : IN STD_LOGIC_VECTOR (1 DOWNTO 0)
- );
- end component;
-
-end ddr;
-
\ No newline at end of file |
