Subversion Repositories fade_ether_protocol

-- File       : desc_manager.vhd

-- File       : desc_manager.vhd

-- Author     : Wojciech M. Zabolotny (wzab@ise.pw.edu.pl)

-- Author     : Wojciech M. Zabolotny (wzab@ise.pw.edu.pl)

-- License    : BSD License

-- License    : BSD License

-- Company    : 

-- Company    : 

-- Created    : 2012-03-30

-- Created    : 2012-03-30

-- Platform   : 

-- Platform   : 

-- Standard   : VHDL'93

-- Standard   : VHDL'93

-------------------------------------------------------------------------------

-------------------------------------------------------------------------------

-- Description: This file implements the state machine, which manages the

-- Description: This file implements the state machine, which manages the

-- table of packet descriptors, used to resend only not confirmed packets

-- table of packet descriptors, used to resend only not confirmed packets

    r_i.cmd_ack_0 <= cmd_ack;

    r_i.cmd_ack_0 <= cmd_ack;

    r_i.cmd_ack   <= r.cmd_ack_0;

    r_i.cmd_ack   <= r.cmd_ack_0;

    if r.retr_delay /= to_unsigned(0, r.retr_delay'length) then

    if r.retr_delay /= to_unsigned(0, r.retr_delay'length) then

      r_i.retr_delay <= r.retr_delay-1;

      r_i.retr_delay <= r.retr_delay-1;

    end if;

    end if;

    dmgr_state_next <= dmgr_state;

    dmgr_state_next <= dmgr_state;

    -- State machine

    -- State machine

    case dmgr_state is

    case dmgr_state is

      when ST_DMGR_RST =>

      when ST_DMGR_RST =>

        dbg             <= x"1";

        dbg             <= x"1";