Subversion Repositories funbase_ip_library

-------------------------------------------------------------------------------
-- Title      : Package for constants
-- Project    : 
-------------------------------------------------------------------------------
-- File       : DM9kA_ctrl_pkg.vhd
-- Author     : Jussi Nieminen
-- Company    : TUT
-- Created    : 2012-04-04
-- Last update: 2012-04-04
-- Platform   : 
-- Standard   : VHDL'87
-------------------------------------------------------------------------------
-- Description: Constants needed for handling DM9000A chip.
-------------------------------------------------------------------------------
-- Copyright (c) 2012
-------------------------------------------------------------------------------
-- Revisions  :
-- Date        Version  Author  Description
-- 2009/08/21  1.0      niemin95        Created
-------------------------------------------------------------------------------
 
library ieee;
use ieee.std_logic_1164.all;
 
package DM9kA_ctrl_pkg is
 
  constant data_width_c   : integer := 16;  -- bits
  constant tx_len_w_c     : integer := 11;  --bits, to count 0-1500
  constant sleep_time_w_c : integer := 32;
  constant submodules_c   : integer := 3;  -- interrupt, send, read (init exclude)
 
  -- init reg addresses
  constant NCR_c         : std_logic_vector(7 downto 0) := x"00";
  constant NSR_c         : std_logic_vector(7 downto 0) := x"01";
  constant TCR_c         : std_logic_vector(7 downto 0) := x"02";
  constant RCR_c         : std_logic_vector(7 downto 0) := x"05";
  constant BPTR_c        : std_logic_vector(7 downto 0) := x"08";
  constant FCTR_c        : std_logic_vector(7 downto 0) := x"09";
  constant FCR_c         : std_logic_vector(7 downto 0) := x"0A";
  constant WUCR_r        : std_logic_vector(7 downto 0) := x"0F";
  constant GPCR_c        : std_logic_vector(7 downto 0) := x"1E";
  constant GPR_c         : std_logic_vector(7 downto 0) := x"1F";
  constant TCR2_c        : std_logic_vector(7 downto 0) := x"2D";
  constant ETXCSR_c      : std_logic_vector(7 downto 0) := x"30";
  constant ISR_c         : std_logic_vector(7 downto 0) := x"FE";
  constant IMR_c         : std_logic_vector(7 downto 0) := x"FF";
  constant tx_data_reg_c : std_logic_vector(7 downto 0) := x"F8";
  constant rx_data_reg_c : std_logic_vector(7 downto 0) := x"F2";
  constant rx_peek_reg_c : std_logic_vector(7 downto 0) := x"F0";
  -- tx packet length low register address
  constant TXPLL_c       : std_logic_vector(7 downto 0) := x"FC";
  constant TXPLH_c       : std_logic_vector(7 downto 0) := x"FD";
 
  -- MAC address registers
  constant MAC1_c : std_logic_vector(7 downto 0) := x"10";
  constant MAC2_c : std_logic_vector(7 downto 0) := x"11";
  constant MAC3_c : std_logic_vector(7 downto 0) := x"12";
  constant MAC4_c : std_logic_vector(7 downto 0) := x"13";
  constant MAC5_c : std_logic_vector(7 downto 0) := x"14";
  constant MAC6_c : std_logic_vector(7 downto 0) := x"15";
 
  -- MAC address of the device
  constant MAC_addr_c : std_logic_vector(47 downto 0) := x"ACDCABBACD00";
 
  constant MAC_len_c          : integer := 6;  -- bytes
  constant eth_header_len_c   : integer := 14;
  constant eth_checksum_len_c : integer := 4;
 
  -- sleeping times in clock cycles
  constant power_up_sleep_c : integer := 75_000;  -- 3 ms with 25MHz
  constant reset_sleep_c    : integer := 125;    -- 5 us with 25MHz
 
  -- whether to raise the tx request bit or not:
  -- 0: DM9000A must be configured to start tx in advance (reg ETXCSR)
  -- 1: send module raises tx req bit in TCR after writing tx data
  constant send_cmd_en_c : integer := 1;
 
end DM9kA_ctrl_pkg;