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[/] [udp_ip_stack/] [trunk/] [rtl/] [vhdl/] [IPv4.vhd] - Diff between revs 2 and 4

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Line 19... Line 19...
-- Dependencies: 
-- Dependencies: 
--
--
-- Revision: 
-- Revision: 
-- Revision 0.01 - File Created
-- Revision 0.01 - File Created
-- Revision 0.02 - separated RX and TX clocks
-- Revision 0.02 - separated RX and TX clocks
 
-- Revision 0.03 - Added mac_data_out_first
-- Additional Comments: 
-- Additional Comments: 
--
--
----------------------------------------------------------------------------------
----------------------------------------------------------------------------------
LIBRARY ieee;
LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
USE ieee.std_logic_1164.ALL;
Line 58... Line 59...
                        -- MAC layer TX signals
                        -- MAC layer TX signals
                        mac_tx_req                              : out std_logic;                                                                        -- indicates that ip wants access to channel (stays up for as long as tx)
                        mac_tx_req                              : out std_logic;                                                                        -- indicates that ip wants access to channel (stays up for as long as tx)
                        mac_tx_granted                  : in std_logic;                                                                 -- indicates that access to channel has been granted            
                        mac_tx_granted                  : in std_logic;                                                                 -- indicates that access to channel has been granted            
                        mac_data_out_ready      : in std_logic;                                                                 -- indicates system ready to consume data
                        mac_data_out_ready      : in std_logic;                                                                 -- indicates system ready to consume data
                        mac_data_out_valid      : out std_logic;                                                                        -- indicates data out is valid
                        mac_data_out_valid      : out std_logic;                                                                        -- indicates data out is valid
 
                        mac_data_out_first      : out std_logic;                                                                        -- with data out valid indicates the first byte of a frame
                        mac_data_out_last               : out std_logic;                                                                        -- with data out valid indicates the last byte of a frame
                        mac_data_out_last               : out std_logic;                                                                        -- with data out valid indicates the last byte of a frame
                        mac_data_out                    : out std_logic_vector (7 downto 0)                      -- ethernet frame (from dst mac addr through to last byte of frame)      
                        mac_data_out                    : out std_logic_vector (7 downto 0)                      -- ethernet frame (from dst mac addr through to last byte of frame)      
                        );
                        );
end IPv4;
end IPv4;
 
 
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                        -- IP Layer signals
                        -- IP Layer signals
                        ip_tx_start                             : in std_logic;
                        ip_tx_start                             : in std_logic;
                        ip_tx                                           : in ipv4_tx_type;                                                              -- IP tx cxns
                        ip_tx                                           : in ipv4_tx_type;                                                              -- IP tx cxns
                        ip_tx_result                    : out std_logic_vector (1 downto 0);             -- tx status (changes during transmission)
                        ip_tx_result                    : out std_logic_vector (1 downto 0);             -- tx status (changes during transmission)
                        ip_tx_data_out_ready    : out std_logic;                                                                        -- indicates IP TX is ready to take data
                        ip_tx_data_out_ready    : out std_logic;                                                                        -- indicates IP TX is ready to take data
                        -- system control signals
 
                        clk                                             : in  STD_LOGIC;
                        -- system signals
 
                        clk                                             : in  STD_LOGIC;                                                                        -- same clock used to clock mac data and ip data
                        reset                                   : in  STD_LOGIC;
                        reset                                   : in  STD_LOGIC;
                        our_ip_address          : in STD_LOGIC_VECTOR (31 downto 0);
                        our_ip_address          : in STD_LOGIC_VECTOR (31 downto 0);
                        our_mac_address                 : in std_logic_vector (47 downto 0);
                        our_mac_address                 : in std_logic_vector (47 downto 0);
                        -- ARP lookup signals
                        -- ARP lookup signals
                        arp_req_req                             : out arp_req_req_type;
                        arp_req_req                             : out arp_req_req_type;
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                        -- MAC layer TX signals
                        -- MAC layer TX signals
                        mac_tx_req                              : out std_logic;                                                                        -- indicates that ip wants access to channel (stays up for as long as tx)
                        mac_tx_req                              : out std_logic;                                                                        -- indicates that ip wants access to channel (stays up for as long as tx)
                        mac_tx_granted                  : in std_logic;                                                                 -- indicates that access to channel has been granted            
                        mac_tx_granted                  : in std_logic;                                                                 -- indicates that access to channel has been granted            
                        mac_data_out_ready      : in std_logic;                                                                 -- indicates system ready to consume data
                        mac_data_out_ready      : in std_logic;                                                                 -- indicates system ready to consume data
                        mac_data_out_valid      : out std_logic;                                                                        -- indicates data out is valid
                        mac_data_out_valid      : out std_logic;                                                                        -- indicates data out is valid
 
                        mac_data_out_first      : out std_logic;                                                                        -- with data out valid indicates the first byte of a frame
                        mac_data_out_last               : out std_logic;                                                                        -- with data out valid indicates the last byte of a frame
                        mac_data_out_last               : out std_logic;                                                                        -- with data out valid indicates the last byte of a frame
                        mac_data_out                    : out std_logic_vector (7 downto 0)                      -- ethernet frame (from dst mac addr through to last byte of frame)      
                        mac_data_out                    : out std_logic_vector (7 downto 0)                      -- ethernet frame (from dst mac addr through to last byte of frame)      
        );
        );
    END COMPONENT;
    END COMPONENT;
 
 
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          arp_req_rslt                  => arp_req_rslt,
          arp_req_rslt                  => arp_req_rslt,
          mac_tx_req                    => mac_tx_req,
          mac_tx_req                    => mac_tx_req,
          mac_tx_granted                => mac_tx_granted,
          mac_tx_granted                => mac_tx_granted,
          mac_data_out_ready    => mac_data_out_ready,
          mac_data_out_ready    => mac_data_out_ready,
          mac_data_out_valid    => mac_data_out_valid,
          mac_data_out_valid    => mac_data_out_valid,
 
          mac_data_out_first    => mac_data_out_first,
          mac_data_out_last     => mac_data_out_last,
          mac_data_out_last     => mac_data_out_last,
          mac_data_out                  => mac_data_out
          mac_data_out                  => mac_data_out
        );
        );
 
 
   RX : IPv4_RX PORT MAP (
   RX : IPv4_RX PORT MAP (

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