| Line 19... |
Line 19... |
-- Dependencies:
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-- Dependencies:
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--
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--
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-- Revision:
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-- Revision:
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-- Revision 0.01 - File Created
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-- Revision 0.01 - File Created
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-- Revision 0.02 - separated RX and TX clocks
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-- Revision 0.02 - separated RX and TX clocks
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-- Revision 0.03 - Added mac_data_out_first
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-- Additional Comments:
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-- Additional Comments:
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--
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--
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----------------------------------------------------------------------------------
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----------------------------------------------------------------------------------
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LIBRARY ieee;
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LIBRARY ieee;
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USE ieee.std_logic_1164.ALL;
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USE ieee.std_logic_1164.ALL;
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| Line 58... |
Line 59... |
-- MAC layer TX signals
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-- MAC layer TX signals
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mac_tx_req : out std_logic; -- indicates that ip wants access to channel (stays up for as long as tx)
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mac_tx_req : out std_logic; -- indicates that ip wants access to channel (stays up for as long as tx)
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mac_tx_granted : in std_logic; -- indicates that access to channel has been granted
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mac_tx_granted : in std_logic; -- indicates that access to channel has been granted
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mac_data_out_ready : in std_logic; -- indicates system ready to consume data
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mac_data_out_ready : in std_logic; -- indicates system ready to consume data
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mac_data_out_valid : out std_logic; -- indicates data out is valid
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mac_data_out_valid : out std_logic; -- indicates data out is valid
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mac_data_out_first : out std_logic; -- with data out valid indicates the first byte of a frame
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mac_data_out_last : out std_logic; -- with data out valid indicates the last byte of a frame
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mac_data_out_last : out std_logic; -- with data out valid indicates the last byte of a frame
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mac_data_out : out std_logic_vector (7 downto 0) -- ethernet frame (from dst mac addr through to last byte of frame)
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mac_data_out : out std_logic_vector (7 downto 0) -- ethernet frame (from dst mac addr through to last byte of frame)
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);
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);
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end IPv4;
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end IPv4;
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|
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| Line 72... |
Line 74... |
-- IP Layer signals
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-- IP Layer signals
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ip_tx_start : in std_logic;
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ip_tx_start : in std_logic;
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ip_tx : in ipv4_tx_type; -- IP tx cxns
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ip_tx : in ipv4_tx_type; -- IP tx cxns
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ip_tx_result : out std_logic_vector (1 downto 0); -- tx status (changes during transmission)
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ip_tx_result : out std_logic_vector (1 downto 0); -- tx status (changes during transmission)
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ip_tx_data_out_ready : out std_logic; -- indicates IP TX is ready to take data
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ip_tx_data_out_ready : out std_logic; -- indicates IP TX is ready to take data
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-- system control signals
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clk : in STD_LOGIC;
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-- system signals
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clk : in STD_LOGIC; -- same clock used to clock mac data and ip data
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reset : in STD_LOGIC;
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reset : in STD_LOGIC;
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our_ip_address : in STD_LOGIC_VECTOR (31 downto 0);
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our_ip_address : in STD_LOGIC_VECTOR (31 downto 0);
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our_mac_address : in std_logic_vector (47 downto 0);
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our_mac_address : in std_logic_vector (47 downto 0);
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-- ARP lookup signals
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-- ARP lookup signals
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arp_req_req : out arp_req_req_type;
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arp_req_req : out arp_req_req_type;
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| Line 85... |
Line 88... |
-- MAC layer TX signals
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-- MAC layer TX signals
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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
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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
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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
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mac_data_out_last : out std_logic; -- with data out valid indicates the last byte of a frame
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mac_data_out_last : out std_logic; -- with data out valid indicates the last byte of a frame
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mac_data_out : out std_logic_vector (7 downto 0) -- ethernet frame (from dst mac addr through to last byte of frame)
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mac_data_out : out std_logic_vector (7 downto 0) -- ethernet frame (from dst mac addr through to last byte of frame)
|
);
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);
|
END COMPONENT;
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END COMPONENT;
|
|
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| Line 124... |
Line 128... |
arp_req_rslt => arp_req_rslt,
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arp_req_rslt => arp_req_rslt,
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mac_tx_req => mac_tx_req,
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mac_tx_req => mac_tx_req,
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mac_tx_granted => mac_tx_granted,
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mac_tx_granted => mac_tx_granted,
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mac_data_out_ready => mac_data_out_ready,
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mac_data_out_ready => mac_data_out_ready,
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mac_data_out_valid => mac_data_out_valid,
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mac_data_out_valid => mac_data_out_valid,
|
|
mac_data_out_first => mac_data_out_first,
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mac_data_out_last => mac_data_out_last,
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mac_data_out_last => mac_data_out_last,
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mac_data_out => mac_data_out
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mac_data_out => mac_data_out
|
);
|
);
|
|
|
RX : IPv4_RX PORT MAP (
|
RX : IPv4_RX PORT MAP (
|
