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dinesha |
//////////////////////////////////////////////////////////////////////
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//// ////
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//// Tubo 8051 cores MAC Interface Module ////
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//// ////
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//// This file is part of the Turbo 8051 cores project ////
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//// http://www.opencores.org/cores/turbo8051/ ////
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//// ////
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//// Description ////
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//// Turbo 8051 definitions. ////
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//// ////
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//// To Do: ////
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//// nothing ////
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//// ////
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//// Author(s): ////
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//// - Dinesh Annayya, dinesha@opencores.org ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//// ////
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//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
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//// ////
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//// This source file may be used and distributed without ////
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//// restriction provided that this copyright statement is not ////
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//// removed from the file and that any derivative work contains ////
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//// the original copyright notice and the associated disclaimer. ////
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//// ////
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//// This source file is free software; you can redistribute it ////
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//// and/or modify it under the terms of the GNU Lesser General ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any ////
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//// later version. ////
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//// ////
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//// This source is distributed in the hope that it will be ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
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//// PURPOSE. See the GNU Lesser General Public License for more ////
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//// details. ////
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//// ////
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//// You should have received a copy of the GNU Lesser General ////
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//// Public License along with this source; if not, download it ////
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//// from http://www.opencores.org/lgpl.shtml ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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/***************************************************************
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Description:
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cfg_mgmt.v: contains the configuration, register information, Application
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read from any location. But can write to a limited set of locations,
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Please refer to the design data sheets for register locations
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***********************************************************************/
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//`timescale 1ns/100ps
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module g_cfg_mgmt (
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//List of Inputs
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// Reg Bus Interface Signal
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reg_cs,
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reg_wr,
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reg_addr,
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reg_wdata,
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reg_be,
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// Outputs
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reg_rdata,
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reg_ack,
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// Rx Status
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rx_sts_vld,
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rx_sts,
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// Rx Status
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tx_sts_vld,
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tx_sts,
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// MDIO READ DATA FROM PHY
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md2cf_cmd_done,
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md2cf_status,
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md2cf_data,
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app_clk,
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app_reset_n,
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//List of Outputs
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// MII Control
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cf2mi_loopback_en,
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cf_mac_mode,
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cf_chk_rx_dfl,
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cf2mi_rmii_en,
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cfg_uni_mac_mode_change_i,
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cfg_crs_flow_ctrl_enb_i,
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//CHANNEL enable
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cf2tx_ch_en,
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//CHANNEL CONTROL TX
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cf_silent_mode,
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cf2df_dfl_single,
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cf2df_dfl_single_rx,
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cf2tx_pad_enable,
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cf2tx_append_fcs,
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//CHANNEL CONTROL RX
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cf2rx_ch_en,
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cf2rx_strp_pad_en,
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cf2rx_snd_crc,
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cf2rx_pause_en,
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cf2rx_addrchk_en,
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cf2rx_runt_pkt_en,
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cf2af_broadcast_disable,
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cf_mac_sa,
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cf2tx_pause_quanta,
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cf2rx_max_pkt_sz,
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cf2tx_force_bad_fcs,
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cf2tx_tstate_mode,
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//MDIO CONTROL & DATA
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cf2md_datain,
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cf2md_regad,
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cf2md_phyad,
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cf2md_op,
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cf2md_go);
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parameter mac_mdio_en = 1'b1;
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//pin out definations
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//---------------------------------
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// Reg Bus Interface Signal
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//---------------------------------
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input reg_cs ;
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input reg_wr ;
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input [3:0] reg_addr ;
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input [31:0] reg_wdata ;
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input [3:0] reg_be ;
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// Outputs
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output [31:0] reg_rdata ;
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output reg_ack ;
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input rx_sts_vld ; // rx status valid indication, sync w.r.t app clk
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input [7:0] rx_sts ; // rx status bits
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input tx_sts_vld ; // tx status valid indication, sync w.r.t app clk
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input tx_sts ; // tx status bits
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//List of Inputs
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input app_clk, app_reset_n;
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input md2cf_cmd_done; // Read/Write MDIO completed
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input md2cf_status; // MDIO transfer error
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input [15:0] md2cf_data; // Data from PHY for a
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// mdio read access
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//List of Outputs
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output cf2mi_rmii_en; // Working in RMII when set to 1
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output cf_mac_mode; // mac mode set this to 1 for 100Mbs/10Mbs
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output cf_chk_rx_dfl; // Check for RX Deferal
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output [47:0] cf_mac_sa;
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output [15:0] cf2tx_pause_quanta;
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output cf2tx_ch_en; //enable the TX channel
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output cf_silent_mode; // PHY Inactive
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output [7:0] cf2df_dfl_single; //number of clk ticks for dfl
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output [7:0] cf2df_dfl_single_rx; //number of clk ticks for dfl
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output cf2tx_tstate_mode; //used for OFN's tstate enable on authentication interface
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output cf2tx_pad_enable; //enable padding, < 64 bytes
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output cf2tx_append_fcs; //append CRC for TX frames
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output cf2rx_ch_en; //Enable RX channel
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output cf2rx_strp_pad_en; //strip the padded bytes on RX frame
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output cf2rx_snd_crc; //send FCS to application, else strip
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//the FCS before sending to application
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output cf2rx_pause_en; //enable flow control for full duplex using
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//pause control frames
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output cf2mi_loopback_en; // TX to RX loop back enable
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output cf2rx_addrchk_en; //check the destination address, filter
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output cf2rx_runt_pkt_en; //don't throw packets less than 64 bytes
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output cf2af_broadcast_disable;
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output [15:0] cf2md_datain;
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output [4:0] cf2md_regad;
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output [4:0] cf2md_phyad;
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output cf2md_op;
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output cf2md_go;
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output [15:0] cf2rx_max_pkt_sz; //max rx packet size
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output cf2tx_force_bad_fcs; //force bad fcs on tx
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output cfg_uni_mac_mode_change_i;
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output cfg_crs_flow_ctrl_enb_i;
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// Wire assignments for output signals
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wire [15:0] cf2md_datain;
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wire [4:0] cf2md_regad;
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wire [4:0] cf2md_phyad;
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wire cf2md_op;
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wire cf2md_go;
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wire mdio_cmd_done_sync;
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wire int_mdio_cmd_done_sync;
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assign mdio_cmd_done_sync = (mac_mdio_en) ? int_mdio_cmd_done_sync : 1'b0;
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s2f_sync U1_s2f_sync ( .sync_out_pulse(int_mdio_cmd_done_sync),
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.in_pulse(md2cf_cmd_done),
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.dest_clk(app_clk),
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.reset_n(app_reset_n));
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// Wire and Reg assignments for local signals
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reg int_md2cf_status;
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wire [7:0] mac_mode_out;
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wire [7:0] tx_cntrl_out_1, rx_cntrl_out_1;
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wire [7:0] tx_cntrl_out_2, rx_cntrl_out_2;
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wire [7:0] dfl_params_rx_out;
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wire [7:0] dfl_params1_out;
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wire [7:0] slottime_out_1;
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wire [7:0] slottime_out_2;
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wire [31:0] mdio_cmd_out;
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wire [7:0] mdio_stat_out_1;
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wire [7:0] mdio_stat_out_2;
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wire [7:0] mdio_stat_out_3;
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wire [7:0] mdio_stat_out_4;
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wire [7:0] mdio_cmd_out_1;
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wire [7:0] mdio_cmd_out_2;
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wire [7:0] mdio_cmd_out_3;
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wire [7:0] mdio_cmd_out_4;
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wire [7:0] mac_sa_out_1;
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wire [7:0] mac_sa_out_2;
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wire [7:0] mac_sa_out_3;
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wire [7:0] mac_sa_out_4;
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wire [7:0] mac_sa_out_5;
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wire [7:0] mac_sa_out_6;
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wire [7:0] pause_quanta_out_1;
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wire [7:0] pause_quanta_out_2;
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wire [47:0] cf_mac_sa;
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wire [15:0] cf2tx_pause_quanta;
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wire [15:0] cf2rx_max_pkt_sz;
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wire cf2tx_force_bad_fcs;
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wire cf2tx_tstate_mode;
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reg force_bad_fcs;
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reg cont_force_bad_fcs;
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wire [31:0] mdio_stat_out;
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reg cf2tx_force_bad_fcs_en;
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reg cf2tx_cont_force_bad_fcs_en;
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reg [15:0] int_mdio_stat_out;
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//-----------------------------------------------------------------------
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// Internal Wire Declarations
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//-----------------------------------------------------------------------
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wire sw_rd_en;
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wire sw_wr_en;
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wire [3:0] sw_addr ; // addressing 16 registers
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wire [3:0] wr_be ;
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reg [31:0] reg_rdata ;
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reg reg_ack ;
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wire [31:0] reg_0; // Software_Reg_0
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wire [31:0] reg_1; // Software-Reg_1
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wire [31:0] reg_2; // Software-Reg_2
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wire [31:0] reg_3; // Software-Reg_3
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wire [31:0] reg_4; // Software-Reg_4
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wire [31:0] reg_5; // Software-Reg_5
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wire [31:0] reg_6; // Software-Reg_6
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wire [31:0] reg_7; // Software-Reg_7
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wire [31:0] reg_8; // Software-Reg_8
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wire [31:0] reg_9; // Software-Reg_9
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wire [31:0] reg_10; // Software-Reg_10
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wire [31:0] reg_11; // Software-Reg_11
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wire [31:0] reg_12; // Software-Reg_12
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wire [31:0] reg_13; // Software-Reg_13
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wire [31:0] reg_14; // Software-Reg_14
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wire [31:0] reg_15; // Software-Reg_15
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reg [31:0] reg_out;
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//-----------------------------------------------------------------------
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// Internal Logic Starts here
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//-----------------------------------------------------------------------
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assign sw_addr = reg_addr [3:0];
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assign sw_rd_en = reg_cs & !reg_wr;
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assign sw_wr_en = reg_cs & reg_wr;
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assign wr_be = reg_be;
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//-----------------------------------------------------------------------
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// Read path mux
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//-----------------------------------------------------------------------
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always @ (posedge app_clk or negedge app_reset_n)
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begin : preg_out_Seq
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if (app_reset_n == 1'b0)
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begin
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reg_rdata [31:0] <= 32'h0000_0000;
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reg_ack <= 1'b0;
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end
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else if (sw_rd_en && !reg_ack)
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begin
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reg_rdata [31:0] <= reg_out [31:0];
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reg_ack <= 1'b1;
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end
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else if (sw_wr_en && !reg_ack)
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reg_ack <= 1'b1;
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else
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begin
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reg_ack <= 1'b0;
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end
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end
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//-----------------------------------------------------------------------
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// register read enable and write enable decoding logic
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//-----------------------------------------------------------------------
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wire sw_wr_en_0 = sw_wr_en & (sw_addr == 4'h0);
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wire sw_rd_en_0 = sw_rd_en & (sw_addr == 4'h0);
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wire sw_wr_en_1 = sw_wr_en & (sw_addr == 4'h1);
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wire sw_rd_en_1 = sw_rd_en & (sw_addr == 4'h1);
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wire sw_wr_en_2 = sw_wr_en & (sw_addr == 4'h2);
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wire sw_rd_en_2 = sw_rd_en & (sw_addr == 4'h2);
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wire sw_wr_en_3 = sw_wr_en & (sw_addr == 4'h3);
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wire sw_rd_en_3 = sw_rd_en & (sw_addr == 4'h3);
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wire sw_wr_en_4 = sw_wr_en & (sw_addr == 4'h4);
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wire sw_rd_en_4 = sw_rd_en & (sw_addr == 4'h4);
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wire sw_wr_en_5 = sw_wr_en & (sw_addr == 4'h5);
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wire sw_rd_en_5 = sw_rd_en & (sw_addr == 4'h5);
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wire sw_wr_en_6 = sw_wr_en & (sw_addr == 4'h6);
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wire sw_rd_en_6 = sw_rd_en & (sw_addr == 4'h6);
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wire sw_wr_en_7 = sw_wr_en & (sw_addr == 4'h7);
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wire sw_rd_en_7 = sw_rd_en & (sw_addr == 4'h7);
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wire sw_wr_en_8 = sw_wr_en & (sw_addr == 4'h8);
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wire sw_rd_en_8 = sw_rd_en & (sw_addr == 4'h8);
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wire sw_wr_en_9 = sw_wr_en & (sw_addr == 4'h9);
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wire sw_rd_en_9 = sw_rd_en & (sw_addr == 4'h9);
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330 |
|
|
wire sw_wr_en_10 = sw_wr_en & (sw_addr == 4'hA);
|
331 |
|
|
wire sw_rd_en_10 = sw_rd_en & (sw_addr == 4'hA);
|
332 |
|
|
wire sw_wr_en_11 = sw_wr_en & (sw_addr == 4'hB);
|
333 |
|
|
wire sw_rd_en_11 = sw_rd_en & (sw_addr == 4'hB);
|
334 |
|
|
wire sw_wr_en_12 = sw_wr_en & (sw_addr == 4'hC);
|
335 |
|
|
wire sw_rd_en_12 = sw_rd_en & (sw_addr == 4'hC);
|
336 |
|
|
wire sw_wr_en_13 = sw_wr_en & (sw_addr == 4'hD);
|
337 |
|
|
wire sw_rd_en_13 = sw_rd_en & (sw_addr == 4'hD);
|
338 |
|
|
wire sw_wr_en_14 = sw_wr_en & (sw_addr == 4'hE);
|
339 |
|
|
wire sw_rd_en_14 = sw_rd_en & (sw_addr == 4'hE);
|
340 |
|
|
wire sw_wr_en_15 = sw_wr_en & (sw_addr == 4'hF);
|
341 |
|
|
wire sw_rd_en_15 = sw_rd_en & (sw_addr == 4'hF);
|
342 |
|
|
|
343 |
|
|
|
344 |
|
|
always @( *)
|
345 |
|
|
begin : preg_sel_Com
|
346 |
|
|
|
347 |
|
|
reg_out [31:0] = 32'd0;
|
348 |
|
|
|
349 |
|
|
case (sw_addr [3:0])
|
350 |
|
|
4'b0000 : reg_out [31:0] = reg_0 [31:0];
|
351 |
|
|
4'b0001 : reg_out [31:0] = reg_1 [31:0];
|
352 |
|
|
4'b0010 : reg_out [31:0] = reg_2 [31:0];
|
353 |
|
|
4'b0011 : reg_out [31:0] = reg_3 [31:0];
|
354 |
|
|
4'b0100 : reg_out [31:0] = reg_4 [31:0];
|
355 |
|
|
4'b0101 : reg_out [31:0] = reg_5 [31:0];
|
356 |
|
|
4'b0110 : reg_out [31:0] = reg_6 [31:0];
|
357 |
|
|
4'b0111 : reg_out [31:0] = reg_7 [31:0];
|
358 |
|
|
4'b1000 : reg_out [31:0] = reg_8 [31:0];
|
359 |
|
|
4'b1001 : reg_out [31:0] = reg_9 [31:0];
|
360 |
|
|
4'b1010 : reg_out [31:0] = reg_10 [31:0];
|
361 |
|
|
4'b1011 : reg_out [31:0] = reg_11 [31:0];
|
362 |
|
|
4'b1100 : reg_out [31:0] = reg_12 [31:0];
|
363 |
|
|
4'b1101 : reg_out [31:0] = reg_13 [31:0];
|
364 |
|
|
4'b1110 : reg_out [31:0] = reg_14 [31:0];
|
365 |
|
|
4'b1111 : reg_out [31:0] = reg_15 [31:0];
|
366 |
|
|
endcase
|
367 |
|
|
end
|
368 |
|
|
|
369 |
|
|
|
370 |
|
|
//instantiate all the registers
|
371 |
|
|
|
372 |
|
|
//========================================================================//
|
373 |
|
|
// TX_CNTRL_REGISTER : Address value 00H
|
374 |
|
|
// BIT[0] = Transmit Channel Enable
|
375 |
|
|
// BIT[1] = DONT CARE
|
376 |
|
|
// BIT[2] = Retry Packet in case of Collisions
|
377 |
|
|
// BIT[3] = Enable padding
|
378 |
|
|
// BIT[4] = Append CRC
|
379 |
|
|
// BIT[5] = Perform a Two Part Deferral
|
380 |
|
|
// BIT[6] = RMII Enable bit
|
381 |
|
|
// BIT[7] = Force TX FCS Error
|
382 |
|
|
|
383 |
|
|
|
384 |
|
|
generic_register #(8,0 ) tx_cntrl_reg_1 (
|
385 |
|
|
.we ({8{sw_wr_en_0 &
|
386 |
|
|
wr_be[0] }} ),
|
387 |
|
|
.data_in (reg_wdata[7:0] ),
|
388 |
|
|
.reset_n (app_reset_n ),
|
389 |
|
|
.clk (app_clk ),
|
390 |
|
|
|
391 |
|
|
//List of Outs
|
392 |
|
|
.data_out (tx_cntrl_out_1[7:0] )
|
393 |
|
|
);
|
394 |
|
|
|
395 |
|
|
generic_register #(8,0 ) tx_cntrl_reg_2 (
|
396 |
|
|
.we ({8{sw_wr_en_0 &
|
397 |
|
|
wr_be[1] }} ),
|
398 |
|
|
.data_in (reg_wdata[15:8] ),
|
399 |
|
|
.reset_n (app_reset_n ),
|
400 |
|
|
.clk (app_clk ),
|
401 |
|
|
|
402 |
|
|
//List of Outs
|
403 |
|
|
.data_out (tx_cntrl_out_2[7:0] )
|
404 |
|
|
);
|
405 |
|
|
|
406 |
|
|
assign cf2tx_ch_en = tx_cntrl_out_1[0];
|
407 |
|
|
assign cf2tx_pad_enable = tx_cntrl_out_1[3];
|
408 |
|
|
assign cf2tx_append_fcs = tx_cntrl_out_1[4];
|
409 |
|
|
assign cf2tx_tstate_mode = tx_cntrl_out_1[6];
|
410 |
|
|
assign cf2tx_force_bad_fcs = tx_cntrl_out_1[7];
|
411 |
|
|
|
412 |
|
|
assign reg_0[15:0] = {tx_cntrl_out_2,tx_cntrl_out_1};
|
413 |
|
|
|
414 |
|
|
//=========================================================================//
|
415 |
|
|
// RX_CNTRL_REGISTER 1 : Address Value 04H
|
416 |
|
|
// BIT[0] = Receive Channel Enable
|
417 |
|
|
// BIT[1] = Strip Padding from the Receive data
|
418 |
|
|
// BIT[2] = Send CRC along with data to the host
|
419 |
|
|
// BIT[3] = Enable pause frame detect
|
420 |
|
|
// BIT[4] = Check RX Deferral
|
421 |
|
|
// BIT[5] = Receive Address Check Enable
|
422 |
|
|
// BIT[6] = Receive Runt Packet
|
423 |
|
|
// BIT[7] = Broad Cast Rx Disable
|
424 |
|
|
// BIT[31:8] = Reserved
|
425 |
|
|
generic_register #(8,0 ) rx_cntrl_reg_1 (
|
426 |
|
|
.we ({8{sw_wr_en_1 &
|
427 |
|
|
wr_be[0] }} ),
|
428 |
|
|
.data_in (reg_wdata[7:0] ),
|
429 |
|
|
.reset_n (app_reset_n ),
|
430 |
|
|
.clk (app_clk ),
|
431 |
|
|
|
432 |
|
|
//List of Outs
|
433 |
|
|
.data_out (rx_cntrl_out_1[7:0] )
|
434 |
|
|
);
|
435 |
|
|
|
436 |
|
|
assign cf2rx_ch_en = rx_cntrl_out_1[0];
|
437 |
|
|
assign cf2rx_strp_pad_en = rx_cntrl_out_1[1];
|
438 |
|
|
assign cf2rx_snd_crc = rx_cntrl_out_1[2];
|
439 |
|
|
assign cf2rx_pause_en = rx_cntrl_out_1[3];
|
440 |
|
|
assign cf_chk_rx_dfl = rx_cntrl_out_1[4];
|
441 |
|
|
assign cf2rx_addrchk_en = rx_cntrl_out_1[5];
|
442 |
|
|
assign cf2rx_runt_pkt_en = rx_cntrl_out_1[6];
|
443 |
|
|
assign cf2af_broadcast_disable = rx_cntrl_out_1[7];
|
444 |
|
|
|
445 |
|
|
|
446 |
|
|
assign reg_1[7:0] = {rx_cntrl_out_1};
|
447 |
|
|
//========================================================================//
|
448 |
|
|
//TRANSMIT DEFFERAL CONTROL REGISTER: Address value 08H
|
449 |
|
|
//BIT[7:0] = Defferal TX
|
450 |
|
|
//BIT[15:8] = Defferal RX
|
451 |
|
|
|
452 |
|
|
generic_register #(8,0 ) dfl_params1_en_reg (
|
453 |
|
|
.we ({8{sw_wr_en_2 &
|
454 |
|
|
wr_be[0] }} ),
|
455 |
|
|
.data_in (reg_wdata[7:0] ),
|
456 |
|
|
.reset_n (app_reset_n ),
|
457 |
|
|
.clk (app_clk ),
|
458 |
|
|
|
459 |
|
|
//List of Outs
|
460 |
|
|
.data_out (dfl_params1_out[7:0] )
|
461 |
|
|
);
|
462 |
|
|
|
463 |
|
|
assign cf2df_dfl_single = dfl_params1_out[7:0];
|
464 |
|
|
|
465 |
|
|
generic_register #(8,0 ) dfl_params_rx_en_reg (
|
466 |
|
|
.we ({8{sw_wr_en_2 &
|
467 |
|
|
wr_be[1] }} ),
|
468 |
|
|
.data_in (reg_wdata[15:8] ),
|
469 |
|
|
.reset_n (app_reset_n ),
|
470 |
|
|
.clk (app_clk ),
|
471 |
|
|
|
472 |
|
|
//List of Outs
|
473 |
|
|
.data_out (dfl_params_rx_out[7:0] )
|
474 |
|
|
);
|
475 |
|
|
assign cf2df_dfl_single_rx = dfl_params_rx_out[7:0];
|
476 |
|
|
|
477 |
|
|
assign reg_2[15:0] = {dfl_params_rx_out,dfl_params1_out};
|
478 |
|
|
|
479 |
|
|
//========================================================================//
|
480 |
|
|
// MAC_MODE REGISTER: Address value 0CH
|
481 |
|
|
// BIT[0] = 10/100 or 1000 1 1000, 0 is 10/100 Channel Enable
|
482 |
|
|
// BIT[1] = Mii/Rmii Default is Mii
|
483 |
|
|
// BIT[2] = MAC used in Loop back Mode
|
484 |
|
|
// BIT[3] = Burst Enable
|
485 |
|
|
// BIT[4] = Half Duplex
|
486 |
|
|
// BIT[5] = Silent Mode (During Loopback the Tx --> RX and NOT to PHY)
|
487 |
|
|
// BIT[6] = crs based flow control enable
|
488 |
|
|
// BIT[7] = Mac Mode Change
|
489 |
|
|
|
490 |
|
|
generic_register #(8,0 ) mac_mode_reg (
|
491 |
|
|
.we ({8{sw_wr_en_3 & wr_be[0]}}),
|
492 |
|
|
.data_in (reg_wdata[7:0] ),
|
493 |
|
|
.reset_n (app_reset_n ),
|
494 |
|
|
.clk (app_clk ),
|
495 |
|
|
|
496 |
|
|
//List of Outs
|
497 |
|
|
.data_out (mac_mode_out[7:0] )
|
498 |
|
|
);
|
499 |
|
|
|
500 |
|
|
assign cf_mac_mode = mac_mode_out[0];
|
501 |
|
|
assign cf2mi_rmii_en = mac_mode_out[1];
|
502 |
|
|
assign cf2mi_loopback_en = mac_mode_out[2];
|
503 |
|
|
assign cf_silent_mode = mac_mode_out[5];
|
504 |
|
|
assign cfg_crs_flow_ctrl_enb_i = mac_mode_out[6];
|
505 |
|
|
assign cfg_uni_mac_mode_change_i = mac_mode_out[7];
|
506 |
|
|
|
507 |
|
|
|
508 |
|
|
assign reg_3[7:0] = {mac_mode_out};
|
509 |
|
|
//========================================================================//
|
510 |
|
|
//MDIO COMMAND REGISTER: ADDRESS 10H
|
511 |
|
|
//BIT[15:0] = MDIO DATA TO PHY
|
512 |
|
|
//BIT[20:16] = MDIO REGISTER ADDR
|
513 |
|
|
//BIT[25:21] = MDIO PHY ADDR
|
514 |
|
|
//BIT[26] = MDIO COMMAND OPCODE READ/WRITE(0:read,1:write)
|
515 |
|
|
//BIT[31] = GO MDIO
|
516 |
|
|
|
517 |
|
|
generic_register #(8,0 ) mdio_cmd_reg_1 (
|
518 |
|
|
.we ({8{sw_wr_en_4 &
|
519 |
|
|
wr_be[0] }} ),
|
520 |
|
|
.data_in (reg_wdata[7:0] ),
|
521 |
|
|
.reset_n (app_reset_n ),
|
522 |
|
|
.clk (app_clk ),
|
523 |
|
|
|
524 |
|
|
//List of Outs
|
525 |
|
|
.data_out (mdio_cmd_out_1[7:0] )
|
526 |
|
|
);
|
527 |
|
|
|
528 |
|
|
generic_register #(8,0 ) mdio_cmd_reg_2 (
|
529 |
|
|
.we ({8{sw_wr_en_4 &
|
530 |
|
|
wr_be[1] }} ),
|
531 |
|
|
.data_in (reg_wdata[15:8] ),
|
532 |
|
|
.reset_n (app_reset_n ),
|
533 |
|
|
.clk (app_clk ),
|
534 |
|
|
|
535 |
|
|
//List of Outs
|
536 |
|
|
.data_out (mdio_cmd_out_2[7:0] )
|
537 |
|
|
);
|
538 |
|
|
|
539 |
|
|
generic_register #(8,0 ) mdio_cmd_reg_3 (
|
540 |
|
|
.we ({8{sw_wr_en_4 &
|
541 |
|
|
wr_be[2] }} ),
|
542 |
|
|
.data_in (reg_wdata[23:16] ),
|
543 |
|
|
.reset_n (app_reset_n ),
|
544 |
|
|
.clk (app_clk ),
|
545 |
|
|
|
546 |
|
|
//List of Outs
|
547 |
|
|
.data_out (mdio_cmd_out_3[7:0] )
|
548 |
|
|
);
|
549 |
|
|
|
550 |
|
|
|
551 |
|
|
|
552 |
|
|
//byte_reg mdio_cmd_reg_4 (.we({8{mdio_cmd_en_4 && cfg_rw}}), .data_in(reg_wdata),
|
553 |
|
|
// .reset_n(app_reset_n), .clk(app_clk), .data_out(mdio_cmd_out_4));
|
554 |
|
|
|
555 |
|
|
|
556 |
|
|
generic_register #(7,0 ) mdio_cmd_reg_4 (
|
557 |
|
|
.we ({7{sw_wr_en_4 &
|
558 |
|
|
wr_be[3] }} ),
|
559 |
|
|
.data_in (reg_wdata[30:24] ),
|
560 |
|
|
.reset_n (app_reset_n ),
|
561 |
|
|
.clk (app_clk ),
|
562 |
|
|
|
563 |
|
|
//List of Outs
|
564 |
|
|
.data_out (mdio_cmd_out_4[6:0] )
|
565 |
|
|
);
|
566 |
|
|
|
567 |
|
|
req_register #(0 ) u_mdio_req (
|
568 |
|
|
.cpu_we ({sw_wr_en_4 &
|
569 |
|
|
wr_be[3] } ),
|
570 |
|
|
.cpu_req (reg_wdata[31] ),
|
571 |
|
|
.hware_ack (mdio_cmd_done_sync ),
|
572 |
|
|
.reset_n (app_reset_n ),
|
573 |
|
|
.clk (app_clk ),
|
574 |
|
|
|
575 |
|
|
//List of Outs
|
576 |
|
|
.data_out (mdio_cmd_out_4[7] )
|
577 |
|
|
);
|
578 |
|
|
|
579 |
|
|
|
580 |
|
|
assign mdio_cmd_out = {mdio_cmd_out_4, mdio_cmd_out_3,mdio_cmd_out_2,mdio_cmd_out_1};
|
581 |
|
|
|
582 |
|
|
assign reg_4 = {mdio_cmd_out};
|
583 |
|
|
|
584 |
|
|
assign cf2md_datain = mdio_cmd_out[15:0];
|
585 |
|
|
assign cf2md_regad = mdio_cmd_out[20:16];
|
586 |
|
|
assign cf2md_phyad = mdio_cmd_out[25:21];
|
587 |
|
|
assign cf2md_op = mdio_cmd_out[26];
|
588 |
|
|
assign cf2md_go = mdio_cmd_out[31];
|
589 |
|
|
|
590 |
|
|
|
591 |
|
|
//========================================================================//
|
592 |
|
|
//MDIO STATUS REGISTER: ADDRESS 14H
|
593 |
|
|
//BIT[15:0] = MDIO DATA FROM PHY
|
594 |
|
|
//BIT[31] = STATUS OF MDIO TRANSFER
|
595 |
|
|
|
596 |
|
|
always @(posedge app_clk
|
597 |
|
|
or negedge app_reset_n)
|
598 |
|
|
begin
|
599 |
|
|
if(!app_reset_n) begin
|
600 |
|
|
int_mdio_stat_out <= 16'b0;
|
601 |
|
|
int_md2cf_status <= 1'b0;
|
602 |
|
|
end
|
603 |
|
|
else
|
604 |
|
|
if(mdio_cmd_done_sync)
|
605 |
|
|
begin
|
606 |
|
|
int_mdio_stat_out[15:0] <= md2cf_data;
|
607 |
|
|
// int_mdio_stat_out[30:16] <= int_mdio_stat_out[30:16];
|
608 |
|
|
int_md2cf_status <= md2cf_status;
|
609 |
|
|
end // else: !if(reset)
|
610 |
|
|
end // always @ (posedge app_clk...
|
611 |
|
|
|
612 |
|
|
assign mdio_stat_out = (mac_mdio_en == 1'b1) ? {int_md2cf_status, 15'b0, int_mdio_stat_out} : 32'b0;
|
613 |
|
|
|
614 |
|
|
|
615 |
|
|
assign reg_5 = {mdio_stat_out};
|
616 |
|
|
|
617 |
|
|
//========================================================================//
|
618 |
|
|
//MAC Source Address Register 18-1C
|
619 |
|
|
|
620 |
|
|
generic_register #(8,0 ) mac_sa_reg_1 (
|
621 |
|
|
.we ({8{sw_wr_en_6 & wr_be[0] }}),
|
622 |
|
|
.data_in (reg_wdata[7:0] ),
|
623 |
|
|
.reset_n (app_reset_n ),
|
624 |
|
|
.clk (app_clk ),
|
625 |
|
|
|
626 |
|
|
//List of Outs
|
627 |
|
|
.data_out (mac_sa_out_1[7:0] )
|
628 |
|
|
);
|
629 |
|
|
generic_register #(8,0 ) mac_sa_reg_2 (
|
630 |
|
|
.we ({8{sw_wr_en_6 & wr_be[1] }}),
|
631 |
|
|
.data_in (reg_wdata[15:8] ),
|
632 |
|
|
.reset_n (app_reset_n ),
|
633 |
|
|
.clk (app_clk ),
|
634 |
|
|
|
635 |
|
|
//List of Outs
|
636 |
|
|
.data_out (mac_sa_out_2[7:0] )
|
637 |
|
|
);
|
638 |
|
|
|
639 |
|
|
generic_register #(8,0 ) mac_sa_reg_3 (
|
640 |
|
|
.we ({8{sw_wr_en_6 & wr_be[2] }}),
|
641 |
|
|
.data_in (reg_wdata[23:16] ),
|
642 |
|
|
.reset_n (app_reset_n ),
|
643 |
|
|
.clk (app_clk ),
|
644 |
|
|
|
645 |
|
|
//List of Outs
|
646 |
|
|
.data_out (mac_sa_out_3[7:0] )
|
647 |
|
|
);
|
648 |
|
|
|
649 |
|
|
generic_register #(8,0 ) mac_sa_reg_4 (
|
650 |
|
|
.we ({8{sw_wr_en_6 & wr_be[3] }}),
|
651 |
|
|
.data_in (reg_wdata[31:24] ),
|
652 |
|
|
.reset_n (app_reset_n ),
|
653 |
|
|
.clk (app_clk ),
|
654 |
|
|
|
655 |
|
|
//List of Outs
|
656 |
|
|
.data_out (mac_sa_out_4[7:0] )
|
657 |
|
|
);
|
658 |
|
|
|
659 |
|
|
generic_register #(8,0 ) mac_sa_reg_5 (
|
660 |
|
|
.we ({8{sw_wr_en_7 & wr_be[0] }}),
|
661 |
|
|
.data_in (reg_wdata[7:0] ),
|
662 |
|
|
.reset_n (app_reset_n ),
|
663 |
|
|
.clk (app_clk ),
|
664 |
|
|
|
665 |
|
|
//List of Outs
|
666 |
|
|
.data_out (mac_sa_out_5[7:0] )
|
667 |
|
|
);
|
668 |
|
|
|
669 |
|
|
generic_register #(8,0 ) mac_sa_reg_6 (
|
670 |
|
|
.we ({8{sw_wr_en_7 & wr_be[1] }}),
|
671 |
|
|
.data_in (reg_wdata[15:8] ),
|
672 |
|
|
.reset_n (app_reset_n ),
|
673 |
|
|
.clk (app_clk ),
|
674 |
|
|
|
675 |
|
|
//List of Outs
|
676 |
|
|
.data_out (mac_sa_out_6[7:0] )
|
677 |
|
|
);
|
678 |
|
|
|
679 |
|
|
// assign cf_mac_sa = { mac_sa_out_1, mac_sa_out_2, mac_sa_out_3,
|
680 |
|
|
// mac_sa_out_4, mac_sa_out_5, mac_sa_out_6};
|
681 |
|
|
assign cf_mac_sa = { mac_sa_out_6, mac_sa_out_5, mac_sa_out_4,
|
682 |
|
|
mac_sa_out_3, mac_sa_out_2, mac_sa_out_1};
|
683 |
|
|
|
684 |
|
|
assign reg_6[31:0] = cf_mac_sa[31:0];
|
685 |
|
|
assign reg_7[15:0] = cf_mac_sa[47:32];
|
686 |
|
|
//========================================================================//
|
687 |
|
|
//MAC max packet size Register 20
|
688 |
|
|
|
689 |
|
|
generic_register #(8,0 ) max_pkt_sz_reg0 (
|
690 |
|
|
.we ({8{sw_wr_en_8 & wr_be[0] }}),
|
691 |
|
|
.data_in (reg_wdata[7:0] ),
|
692 |
|
|
.reset_n (app_reset_n ),
|
693 |
|
|
.clk (app_clk ),
|
694 |
|
|
|
695 |
|
|
//List of Outs
|
696 |
|
|
.data_out (cf2rx_max_pkt_sz[7:0] )
|
697 |
|
|
);
|
698 |
|
|
|
699 |
|
|
generic_register #(8,0 ) max_pkt_sz_reg1 (
|
700 |
|
|
.we ({8{sw_wr_en_8 & wr_be[1] }}),
|
701 |
|
|
.data_in (reg_wdata[15:8] ),
|
702 |
|
|
.reset_n (app_reset_n ),
|
703 |
|
|
.clk (app_clk ),
|
704 |
|
|
|
705 |
|
|
//List of Outs
|
706 |
|
|
.data_out (cf2rx_max_pkt_sz[15:8] )
|
707 |
|
|
);
|
708 |
|
|
|
709 |
|
|
assign reg_8[15:0] = cf2rx_max_pkt_sz[15:0];
|
710 |
|
|
//========================================================================//
|
711 |
|
|
//Pause Quanta Register 24
|
712 |
|
|
|
713 |
|
|
generic_register #(8,0 ) pause_quanta_reg_1 (
|
714 |
|
|
.we ({8{sw_wr_en_9 & wr_be[0] }}),
|
715 |
|
|
.data_in (reg_wdata[7:0] ),
|
716 |
|
|
.reset_n (app_reset_n ),
|
717 |
|
|
.clk (app_clk ),
|
718 |
|
|
|
719 |
|
|
//List of Outs
|
720 |
|
|
.data_out (pause_quanta_out_1[7:0] )
|
721 |
|
|
);
|
722 |
|
|
|
723 |
|
|
generic_register #(8,0 ) pause_quanta_reg_2 (
|
724 |
|
|
.we ({8{sw_wr_en_9 & wr_be[1] }}),
|
725 |
|
|
.data_in (reg_wdata[15:8] ),
|
726 |
|
|
.reset_n (app_reset_n ),
|
727 |
|
|
.clk (app_clk ),
|
728 |
|
|
|
729 |
|
|
//List of Outs
|
730 |
|
|
.data_out (pause_quanta_out_2[7:0] )
|
731 |
|
|
);
|
732 |
|
|
|
733 |
|
|
|
734 |
|
|
assign cf2tx_pause_quanta = {pause_quanta_out_1 , pause_quanta_out_2};
|
735 |
|
|
|
736 |
|
|
|
737 |
|
|
assign reg_9[15:0] = cf2tx_pause_quanta;
|
738 |
|
|
|
739 |
|
|
|
740 |
|
|
|
741 |
|
|
//-----------------------------------------------------------------------
|
742 |
|
|
// RX-Clock Static Counter Status Signal
|
743 |
|
|
//-----------------------------------------------------------------------
|
744 |
|
|
// Note: rx_sts_vld signal is only synchronised w.r.t application clock, and
|
745 |
|
|
// assumption is rx_sts is stable untill next packet received
|
746 |
|
|
assign rx_good_frm_trig = rx_sts_vld && (rx_sts[7:0] == 'h0);
|
747 |
|
|
assign rx_bad_frm_trig = rx_sts_vld && (rx_sts[7:0] != 'h0);
|
748 |
|
|
|
749 |
|
|
|
750 |
|
|
stat_counter #(16) u_stat_rx_good_frm (
|
751 |
|
|
// Clock and Reset Signals
|
752 |
|
|
. sys_clk (app_clk ),
|
753 |
|
|
. s_reset_n (app_reset_n ),
|
754 |
|
|
|
755 |
|
|
. count_trigger (rx_good_frm_trig),
|
756 |
|
|
|
757 |
|
|
. reg_sel (sw_wr_en_10 ),
|
758 |
|
|
. reg_wr_data (reg_wdata[15:0] ),
|
759 |
|
|
. reg_wr (wr_be[0] ), // Byte write not supported for cntr
|
760 |
|
|
|
761 |
|
|
. cntr_intr ( ),
|
762 |
|
|
. cntrout (reg_10[15:0] )
|
763 |
|
|
);
|
764 |
|
|
|
765 |
|
|
stat_counter #(16) u_stat_rx_bad_frm (
|
766 |
|
|
// Clock and Reset Signals
|
767 |
|
|
. sys_clk (app_clk ),
|
768 |
|
|
. s_reset_n (app_reset_n ),
|
769 |
|
|
|
770 |
|
|
. count_trigger (rx_bad_frm_trig ),
|
771 |
|
|
|
772 |
|
|
. reg_sel (sw_wr_en_11 ),
|
773 |
|
|
. reg_wr_data (reg_wdata[15:0] ),
|
774 |
|
|
. reg_wr (wr_be[0] ), // Byte write not supported for cntr
|
775 |
|
|
|
776 |
|
|
. cntr_intr ( ),
|
777 |
|
|
. cntrout (reg_11[15:0] )
|
778 |
|
|
);
|
779 |
|
|
|
780 |
|
|
|
781 |
|
|
wire tx_good_frm_trig = tx_sts_vld ;
|
782 |
|
|
|
783 |
|
|
stat_counter #(16) u_stat_tx_good_frm (
|
784 |
|
|
// Clock and Reset Signals
|
785 |
|
|
. sys_clk (app_clk ),
|
786 |
|
|
. s_reset_n (app_reset_n ),
|
787 |
|
|
|
788 |
|
|
. count_trigger (tx_good_frm_trig ),
|
789 |
|
|
|
790 |
|
|
. reg_sel (sw_wr_en_12 ),
|
791 |
|
|
. reg_wr_data (reg_wdata[15:0] ),
|
792 |
|
|
. reg_wr (wr_be[0] ), // Byte write not supported for cntr
|
793 |
|
|
|
794 |
|
|
. cntr_intr ( ),
|
795 |
|
|
. cntrout (reg_12[15:0] )
|
796 |
|
|
);
|
797 |
|
|
|
798 |
|
|
// reg_13 is free
|
799 |
|
|
|
800 |
|
|
generic_intr_stat_reg #(9) u_intr_stat (
|
801 |
|
|
//inputs
|
802 |
|
|
. clk (app_clk ),
|
803 |
|
|
. reset_n (app_reset_n ),
|
804 |
|
|
. reg_we ({{1{sw_wr_en_13 & wr_be[1]}},
|
805 |
|
|
{8{sw_wr_en_13 & wr_be[0]}}} ),
|
806 |
|
|
. reg_din (reg_wdata[8:0] ),
|
807 |
|
|
. hware_req ({tx_sts,rx_sts[7:0]} ),
|
808 |
|
|
|
809 |
|
|
//outputs
|
810 |
|
|
. data_out (reg_14[8:0] )
|
811 |
|
|
);
|
812 |
|
|
|
813 |
|
|
|
814 |
|
|
|
815 |
|
|
|
816 |
|
|
|
817 |
|
|
endmodule
|
818 |
|
|
|
819 |
|
|
|