URL https://opencores.org/ocsvn/udp_ip_stack/udp_ip_stack/trunk

Subversion Repositories udp_ip_stack

[/] [udp_ip_stack/] [trunk/] [rtl/] [vhdl/] [IPv4_TX.vhd] - Diff between revs 6 and 8

Rev 6	Rev 8
Line 249...	Line 249...
`set_mac_lku_req <= CLR;`	`set_mac_lku_req <= CLR;`
`end if;`	`end if;`

`when WAIT_MAC =>`	`when WAIT_MAC =>`
`ip_tx_data_out_ready <= '0'; -- in this state, we are unable to accept user data for tx`	`ip_tx_data_out_ready <= '0'; -- in this state, we are unable to accept user data for tx`
	`set_mac_lku_req <= CLR; -- clear the request - will have been latched in the ARP layer`
`if arp_req_rslt.got_mac = '1' then`	`if arp_req_rslt.got_mac = '1' then`
`-- save the MAC we got back from the ARP lookup`	`-- save the MAC we got back from the ARP lookup`
`tx_mac_value <= arp_req_rslt.mac;`	`tx_mac_value <= arp_req_rslt.mac;`
`set_tx_mac <= '1';`	`set_tx_mac <= '1';`
`set_chn_reqd <= SET;`	`set_chn_reqd <= SET;`
`set_mac_lku_req <= CLR;`
`-- check for optimise when already have the channel`	`-- check for optimise when already have the channel`
`if mac_tx_granted = '1' then`	`if mac_tx_granted = '1' then`
`-- ready to send data`	`-- ready to send data`
`next_tx_state <= SEND_ETH_HDR;`	`next_tx_state <= SEND_ETH_HDR;`
`set_tx_state <= '1';`	`set_tx_state <= '1';`