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

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  • This comparison shows the changes necessary to convert path 
    /openrisc/trunk/orpsocv2/rtl/verilog/eth
    from Rev 408 to Rev 409
    ↔ Reverse comparison
  •

Rev 408 → Rev 409

/eth.v File deleted
/eth_spram_256x32.v
3,7 → 3,7
//// eth_spram_256x32.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
71,7 → 71,7
//
//
 
`include "eth_defines.v"
`include "ethmac_defines.v"
`include "timescale.v"
 
module eth_spram_256x32(
/eth_shiftreg.v
3,7 → 3,7
//// eth_shiftreg.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_rxethmac.v
3,7 → 3,7
//// eth_rxethmac.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_rxcounters.v
3,7 → 3,7
//// eth_rxcounters.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_txethmac.v
3,7 → 3,7
//// eth_txethmac.v ////
/// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_wishbone.v
3,7 → 3,7
//// eth_wishbone.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
38,7 → 38,7
//// ////
//////////////////////////////////////////////////////////////////////
 
`include "eth_defines.v"
`include "ethmac_defines.v"
`include "timescale.v"
 
 
/eth_txcounters.v
3,7 → 3,7
//// eth_txcounters.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_random.v
3,7 → 3,7
//// eth_random.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_fifo.v
3,7 → 3,7
//// eth_fifo.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
43,7 → 43,7
// $Log: not supported by cvs2svn $
// Revision 1.3 2002/04/22 13:45:52 mohor
// Generic ram or Xilinx ram can be used in fifo (selectable by setting
// ETH_FIFO_XILINX in eth_defines.v).
// ETH_FIFO_XILINX in ethmac_defines.v).
//
// Revision 1.2 2002/03/25 13:33:04 mohor
// When clear and read/write are active at the same time, cnt and pointers are
56,7 → 56,7
//
//
 
`include "eth_defines.v"
`include "ethmac_defines.v"
`include "timescale.v"
 
module eth_fifo (data_in, data_out, clk, reset, write, read, clear, almost_full, full, almost_empty, empty, cnt);
/eth_receivecontrol.v
3,7 → 3,7
//// eth_receivecontrol.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_register.v
3,7 → 3,7
//// eth_register.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_clockgen.v
3,7 → 3,7
//// eth_clockgen.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/README
2,4 → 2,4
 
This is based on the core from OpenCores, but heavily modified and improved to provide better bus usage, and buffer configurability.
 
See the include file, include/eth_defines.v for options.
See the include file, include/ethmac_defines.v for options.
/eth_miim.v
3,7 → 3,7
//// eth_miim.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_outputcontrol.v
3,7 → 3,7
//// eth_outputcontrol.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_maccontrol.v
3,7 → 3,7
//// eth_maccontrol.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/ethmac.v
0,0 → 1,785
//////////////////////////////////////////////////////////////////////
//// ////
//// eth.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
//// ////
//// All additional information is available in the Readme.txt ////
//// file. ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2001, 2002 Authors ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
 
 
`include "ethmac_defines.v"
`include "timescale.v"
 
 
module ethmac // renamed jb
(
// WISHBONE common
wb_clk_i, wb_rst_i, wb_dat_i, wb_dat_o,
 
// WISHBONE slave
wb_adr_i, wb_sel_i, wb_we_i, wb_cyc_i, wb_stb_i, wb_ack_o, wb_err_o,
 
// WISHBONE master
m_wb_adr_o, m_wb_sel_o, m_wb_we_o,
m_wb_dat_o, m_wb_dat_i, m_wb_cyc_o,
m_wb_stb_o, m_wb_ack_i, m_wb_err_i,
 
`ifdef ETH_WISHBONE_B3
m_wb_cti_o, m_wb_bte_o,
`endif
 
//TX
mtx_clk_pad_i, mtxd_pad_o, mtxen_pad_o, mtxerr_pad_o,
 
//RX
mrx_clk_pad_i, mrxd_pad_i, mrxdv_pad_i, mrxerr_pad_i, mcoll_pad_i, mcrs_pad_i,
// MIIM
mdc_pad_o, md_pad_i, md_pad_o, md_padoe_o,
 
int_o
 
// Bist
`ifdef ETH_BIST
,
// debug chain signals
mbist_si_i, // bist scan serial in
mbist_so_o, // bist scan serial out
mbist_ctrl_i // bist chain shift control
`endif
 
);
 
 
parameter Tp = 1;
 
 
// WISHBONE common
input wb_clk_i; // WISHBONE clock
input wb_rst_i; // WISHBONE reset
input [31:0] wb_dat_i; // WISHBONE data input
output [31:0] wb_dat_o; // WISHBONE data output
output wb_err_o; // WISHBONE error output
 
// WISHBONE slave
input [11:2] wb_adr_i; // WISHBONE address input
input [3:0] wb_sel_i; // WISHBONE byte select input
input wb_we_i; // WISHBONE write enable input
input wb_cyc_i; // WISHBONE cycle input
input wb_stb_i; // WISHBONE strobe input
output wb_ack_o; // WISHBONE acknowledge output
 
// WISHBONE master
output [31:0] m_wb_adr_o;
output [3:0] m_wb_sel_o;
output m_wb_we_o;
input [31:0] m_wb_dat_i;
output [31:0] m_wb_dat_o;
output m_wb_cyc_o;
output m_wb_stb_o;
input m_wb_ack_i;
input m_wb_err_i;
 
wire [29:0] m_wb_adr_tmp;
 
`ifdef ETH_WISHBONE_B3
output [2:0] m_wb_cti_o; // Cycle Type Identifier
output [1:0] m_wb_bte_o; // Burst Type Extension
`endif
 
// Tx
input mtx_clk_pad_i; // Transmit clock (from PHY)
output [3:0] mtxd_pad_o; // Transmit nibble (to PHY)
output mtxen_pad_o; // Transmit enable (to PHY)
output mtxerr_pad_o; // Transmit error (to PHY)
 
// Rx
input mrx_clk_pad_i; // Receive clock (from PHY)
input [3:0] mrxd_pad_i; // Receive nibble (from PHY)
input mrxdv_pad_i; // Receive data valid (from PHY)
input mrxerr_pad_i; // Receive data error (from PHY)
 
// Common Tx and Rx
input mcoll_pad_i; // Collision (from PHY)
input mcrs_pad_i; // Carrier sense (from PHY)
 
// MII Management interface
input md_pad_i; // MII data input (from I/O cell)
output mdc_pad_o; // MII Management data clock (to PHY)
output md_pad_o; // MII data output (to I/O cell)
output md_padoe_o; // MII data output enable (to I/O cell)
 
output int_o; // Interrupt output
 
// Bist
`ifdef ETH_BIST
input mbist_si_i; // bist scan serial in
output mbist_so_o; // bist scan serial out
input [`ETH_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i; // bist chain shift control
`endif
 
`ifdef WISHBONE_DEBUG
wire [31:0] wb_dbg_dat0;
`endif
 
wire [7:0] r_ClkDiv;
wire r_MiiNoPre;
wire [15:0] r_CtrlData;
wire [4:0] r_FIAD;
wire [4:0] r_RGAD;
wire r_WCtrlData;
wire r_RStat;
wire r_ScanStat;
wire NValid_stat;
wire Busy_stat;
wire LinkFail;
wire [15:0] Prsd; // Read Status Data (data read from the PHY)
wire WCtrlDataStart;
wire RStatStart;
wire UpdateMIIRX_DATAReg;
 
wire TxStartFrm;
wire TxEndFrm;
wire TxUsedData;
wire [7:0] TxData;
wire TxRetry;
wire TxAbort;
wire TxUnderRun;
wire TxDone;
 
 
reg WillSendControlFrame_sync1;
reg WillSendControlFrame_sync2;
reg WillSendControlFrame_sync3;
reg RstTxPauseRq;
 
reg TxPauseRq_sync1;
reg TxPauseRq_sync2;
reg TxPauseRq_sync3;
reg TPauseRq;
 
 
// Connecting Miim module
eth_miim miim1
(
.Clk(wb_clk_i), .Reset(wb_rst_i), .Divider(r_ClkDiv),
.NoPre(r_MiiNoPre), .CtrlData(r_CtrlData), .Rgad(r_RGAD),
.Fiad(r_FIAD), .WCtrlData(r_WCtrlData), .RStat(r_RStat),
.ScanStat(r_ScanStat), .Mdi(md_pad_i), .Mdo(md_pad_o),
.MdoEn(md_padoe_o), .Mdc(mdc_pad_o), .Busy(Busy_stat),
.Prsd(Prsd), .LinkFail(LinkFail), .Nvalid(NValid_stat),
.WCtrlDataStart(WCtrlDataStart), .RStatStart(RStatStart), .UpdateMIIRX_DATAReg(UpdateMIIRX_DATAReg)
);
 
 
 
 
wire [3:0] RegCs; // Connected to registers
wire [31:0] RegDataOut; // Multiplexed to wb_dat_o
wire r_RecSmall; // Receive small frames
wire r_LoopBck; // Loopback
wire r_TxEn; // Tx Enable
wire r_RxEn; // Rx Enable
 
wire MRxDV_Lb; // Muxed MII receive data valid
wire MRxErr_Lb; // Muxed MII Receive Error
wire [3:0] MRxD_Lb; // Muxed MII Receive Data
wire Transmitting; // Indication that TxEthMAC is transmitting
wire r_HugEn; // Huge packet enable
wire r_DlyCrcEn; // Delayed CRC enabled
wire [15:0] r_MaxFL; // Maximum frame length
 
wire [15:0] r_MinFL; // Minimum frame length
wire ShortFrame;
wire DribbleNibble; // Extra nibble received
wire ReceivedPacketTooBig; // Received packet is too big
wire [47:0] r_MAC; // MAC address
wire LoadRxStatus; // Rx status was loaded
wire [31:0] r_HASH0; // HASH table, lower 4 bytes
wire [31:0] r_HASH1; // HASH table, upper 4 bytes
wire [7:0] r_TxBDNum; // Receive buffer descriptor number
wire [6:0] r_IPGT; //
wire [6:0] r_IPGR1; //
wire [6:0] r_IPGR2; //
wire [5:0] r_CollValid; //
wire [15:0] r_TxPauseTV; // Transmit PAUSE value
wire r_TxPauseRq; // Transmit PAUSE request
 
wire [3:0] r_MaxRet; //
wire r_NoBckof; //
wire r_ExDfrEn; //
wire r_TxFlow; // Tx flow control enable
wire r_IFG; // Minimum interframe gap for incoming packets
 
wire TxB_IRQ; // Interrupt Tx Buffer
wire TxE_IRQ; // Interrupt Tx Error
wire RxB_IRQ; // Interrupt Rx Buffer
wire RxE_IRQ; // Interrupt Rx Error
wire Busy_IRQ; // Interrupt Busy (lack of buffers)
 
//wire DWord;
wire ByteSelected;
wire BDAck;
wire [31:0] BD_WB_DAT_O; // wb_dat_o that comes from the Wishbone module (for buffer descriptors read/write)
wire [3:0] BDCs; // Buffer descriptor CS
wire CsMiss; // When access to the address between 0x800 and 0xfff occurs, acknowledge is set
// but data is not valid.
wire r_Pad;
wire r_CrcEn;
wire r_FullD;
wire r_Pro;
wire r_Bro;
wire r_NoPre;
wire r_RxFlow;
wire r_PassAll;
wire TxCtrlEndFrm;
wire StartTxDone;
wire SetPauseTimer;
wire TxUsedDataIn;
wire TxDoneIn;
wire TxAbortIn;
wire PerPacketPad;
wire PadOut;
wire PerPacketCrcEn;
wire CrcEnOut;
wire TxStartFrmOut;
wire TxEndFrmOut;
wire ReceivedPauseFrm;
wire ControlFrmAddressOK;
wire RxStatusWriteLatched_sync2;
wire LateCollision;
wire DeferIndication;
wire LateCollLatched;
wire DeferLatched;
wire RstDeferLatched;
wire CarrierSenseLost;
 
wire temp_wb_ack_o;
wire [31:0] temp_wb_dat_o;
wire temp_wb_err_o;
 
`ifdef ETH_REGISTERED_OUTPUTS
reg temp_wb_ack_o_reg;
reg [31:0] temp_wb_dat_o_reg;
reg temp_wb_err_o_reg;
`endif
 
//assign DWord = &wb_sel_i;
assign ByteSelected = |wb_sel_i;
assign RegCs[3] = wb_stb_i & wb_cyc_i & ByteSelected & ~wb_adr_i[11] & ~wb_adr_i[10] & wb_sel_i[3]; // 0x0 - 0x3FF
assign RegCs[2] = wb_stb_i & wb_cyc_i & ByteSelected & ~wb_adr_i[11] & ~wb_adr_i[10] & wb_sel_i[2]; // 0x0 - 0x3FF
assign RegCs[1] = wb_stb_i & wb_cyc_i & ByteSelected & ~wb_adr_i[11] & ~wb_adr_i[10] & wb_sel_i[1]; // 0x0 - 0x3FF
assign RegCs[0] = wb_stb_i & wb_cyc_i & ByteSelected & ~wb_adr_i[11] & ~wb_adr_i[10] & wb_sel_i[0]; // 0x0 - 0x3FF
assign BDCs[3] = wb_stb_i & wb_cyc_i & ByteSelected & ~wb_adr_i[11] & wb_adr_i[10] & wb_sel_i[3]; // 0x400 - 0x7FF
assign BDCs[2] = wb_stb_i & wb_cyc_i & ByteSelected & ~wb_adr_i[11] & wb_adr_i[10] & wb_sel_i[2]; // 0x400 - 0x7FF
assign BDCs[1] = wb_stb_i & wb_cyc_i & ByteSelected & ~wb_adr_i[11] & wb_adr_i[10] & wb_sel_i[1]; // 0x400 - 0x7FF
assign BDCs[0] = wb_stb_i & wb_cyc_i & ByteSelected & ~wb_adr_i[11] & wb_adr_i[10] & wb_sel_i[0]; // 0x400 - 0x7FF
assign CsMiss = wb_stb_i & wb_cyc_i & ByteSelected & wb_adr_i[11]; // 0x800 - 0xfFF
assign temp_wb_dat_o = ((|RegCs) & ~wb_we_i)? RegDataOut : BD_WB_DAT_O;
assign temp_wb_err_o = wb_stb_i & wb_cyc_i & (~ByteSelected | CsMiss);
 
`ifdef ETH_REGISTERED_OUTPUTS
assign wb_ack_o = temp_wb_ack_o_reg;
assign wb_dat_o[31:0] = temp_wb_dat_o_reg;
assign wb_err_o = temp_wb_err_o_reg;
`else
assign wb_ack_o = temp_wb_ack_o;
assign wb_dat_o[31:0] = temp_wb_dat_o;
assign wb_err_o = temp_wb_err_o;
`endif
 
`ifdef ETH_AVALON_BUS
// As Avalon has no corresponding "error" signal, I (erroneously) will
// send an ack to Avalon, even when accessing undefined memory. This
// is a grey area in Avalon vs. Wishbone specs: My understanding
// is that Avalon expects all memory addressable by the addr bus feeding
// a slave to be, at the very minimum, readable.
assign temp_wb_ack_o = (|RegCs) | BDAck | CsMiss;
`else // WISHBONE
assign temp_wb_ack_o = (|RegCs) | BDAck;
`endif
 
`ifdef ETH_REGISTERED_OUTPUTS
always @ (posedge wb_clk_i or posedge wb_rst_i)
begin
if(wb_rst_i)
begin
temp_wb_ack_o_reg <= 1'b0;
temp_wb_dat_o_reg <= 32'h0;
temp_wb_err_o_reg <= 1'b0;
end
else
begin
temp_wb_ack_o_reg <= temp_wb_ack_o & ~temp_wb_ack_o_reg;
temp_wb_dat_o_reg <= temp_wb_dat_o;
temp_wb_err_o_reg <= temp_wb_err_o & ~temp_wb_err_o_reg;
end
end
`endif
 
 
// Connecting Ethernet registers
eth_registers ethreg1
(
.DataIn(wb_dat_i), .Address(wb_adr_i[9:2]), .Rw(wb_we_i),
.Cs(RegCs), .Clk(wb_clk_i), .Reset(wb_rst_i),
.DataOut(RegDataOut), .r_RecSmall(r_RecSmall),
.r_Pad(r_Pad), .r_HugEn(r_HugEn), .r_CrcEn(r_CrcEn),
.r_DlyCrcEn(r_DlyCrcEn), .r_FullD(r_FullD),
.r_ExDfrEn(r_ExDfrEn), .r_NoBckof(r_NoBckof), .r_LoopBck(r_LoopBck),
.r_IFG(r_IFG), .r_Pro(r_Pro), .r_Iam(),
.r_Bro(r_Bro), .r_NoPre(r_NoPre), .r_TxEn(r_TxEn),
.r_RxEn(r_RxEn), .Busy_IRQ(Busy_IRQ), .RxE_IRQ(RxE_IRQ),
.RxB_IRQ(RxB_IRQ), .TxE_IRQ(TxE_IRQ), .TxB_IRQ(TxB_IRQ),
.r_IPGT(r_IPGT),
.r_IPGR1(r_IPGR1), .r_IPGR2(r_IPGR2), .r_MinFL(r_MinFL),
.r_MaxFL(r_MaxFL), .r_MaxRet(r_MaxRet), .r_CollValid(r_CollValid),
.r_TxFlow(r_TxFlow), .r_RxFlow(r_RxFlow), .r_PassAll(r_PassAll),
.r_MiiNoPre(r_MiiNoPre), .r_ClkDiv(r_ClkDiv),
.r_WCtrlData(r_WCtrlData), .r_RStat(r_RStat), .r_ScanStat(r_ScanStat),
.r_RGAD(r_RGAD), .r_FIAD(r_FIAD), .r_CtrlData(r_CtrlData),
.NValid_stat(NValid_stat), .Busy_stat(Busy_stat),
.LinkFail(LinkFail), .r_MAC(r_MAC), .WCtrlDataStart(WCtrlDataStart),
.RStatStart(RStatStart), .UpdateMIIRX_DATAReg(UpdateMIIRX_DATAReg), .Prsd(Prsd),
.r_TxBDNum(r_TxBDNum), .int_o(int_o),
.r_HASH0(r_HASH0), .r_HASH1(r_HASH1), .r_TxPauseRq(r_TxPauseRq),
.r_TxPauseTV(r_TxPauseTV), .RstTxPauseRq(RstTxPauseRq), .TxCtrlEndFrm(TxCtrlEndFrm),
.StartTxDone(StartTxDone), .TxClk(mtx_clk_pad_i), .RxClk(mrx_clk_pad_i),
.dbg_dat(wb_dbg_dat0),
.SetPauseTimer(SetPauseTimer)
);
 
 
 
wire [7:0] RxData;
wire RxValid;
wire RxStartFrm;
wire RxEndFrm;
wire RxAbort;
 
wire WillTransmit; // Will transmit (to RxEthMAC)
wire ResetCollision; // Reset Collision (for synchronizing collision)
wire [7:0] TxDataOut; // Transmit Packet Data (to TxEthMAC)
wire WillSendControlFrame;
wire ReceiveEnd;
wire ReceivedPacketGood;
wire ReceivedLengthOK;
wire InvalidSymbol;
wire LatchedCrcError;
wire RxLateCollision;
wire [3:0] RetryCntLatched;
wire [3:0] RetryCnt;
wire StartTxAbort;
wire MaxCollisionOccured;
wire RetryLimit;
wire StatePreamble;
wire [1:0] StateData;
 
// Connecting MACControl
eth_maccontrol maccontrol1
(
.MTxClk(mtx_clk_pad_i), .TPauseRq(TPauseRq),
.TxPauseTV(r_TxPauseTV), .TxDataIn(TxData),
.TxStartFrmIn(TxStartFrm), .TxEndFrmIn(TxEndFrm),
.TxUsedDataIn(TxUsedDataIn), .TxDoneIn(TxDoneIn),
.TxAbortIn(TxAbortIn), .MRxClk(mrx_clk_pad_i),
.RxData(RxData), .RxValid(RxValid),
.RxStartFrm(RxStartFrm), .RxEndFrm(RxEndFrm),
.ReceiveEnd(ReceiveEnd), .ReceivedPacketGood(ReceivedPacketGood),
.TxFlow(r_TxFlow),
.RxFlow(r_RxFlow), .DlyCrcEn(r_DlyCrcEn),
.MAC(r_MAC), .PadIn(r_Pad | PerPacketPad),
.PadOut(PadOut), .CrcEnIn(r_CrcEn | PerPacketCrcEn),
.CrcEnOut(CrcEnOut), .TxReset(wb_rst_i),
.RxReset(wb_rst_i), .ReceivedLengthOK(ReceivedLengthOK),
.TxDataOut(TxDataOut), .TxStartFrmOut(TxStartFrmOut),
.TxEndFrmOut(TxEndFrmOut), .TxUsedDataOut(TxUsedData),
.TxDoneOut(TxDone), .TxAbortOut(TxAbort),
.WillSendControlFrame(WillSendControlFrame), .TxCtrlEndFrm(TxCtrlEndFrm),
.ReceivedPauseFrm(ReceivedPauseFrm), .ControlFrmAddressOK(ControlFrmAddressOK),
.SetPauseTimer(SetPauseTimer),
.RxStatusWriteLatched_sync2(RxStatusWriteLatched_sync2), .r_PassAll(r_PassAll)
);
 
 
 
wire TxCarrierSense; // Synchronized CarrierSense (to Tx clock)
wire Collision; // Synchronized Collision
 
reg CarrierSense_Tx1;
reg CarrierSense_Tx2;
reg Collision_Tx1;
reg Collision_Tx2;
 
reg RxEnSync; // Synchronized Receive Enable
reg WillTransmit_q;
reg WillTransmit_q2;
 
 
 
// Muxed MII receive data valid
assign MRxDV_Lb = r_LoopBck? mtxen_pad_o : mrxdv_pad_i & RxEnSync;
 
// Muxed MII Receive Error
assign MRxErr_Lb = r_LoopBck? mtxerr_pad_o : mrxerr_pad_i & RxEnSync;
 
// Muxed MII Receive Data
assign MRxD_Lb[3:0] = r_LoopBck? mtxd_pad_o[3:0] : mrxd_pad_i[3:0];
 
 
 
// Connecting TxEthMAC
eth_txethmac txethmac1
(
.MTxClk(mtx_clk_pad_i), .Reset(wb_rst_i), .CarrierSense(TxCarrierSense),
.Collision(Collision), .TxData(TxDataOut), .TxStartFrm(TxStartFrmOut),
.TxUnderRun(TxUnderRun), .TxEndFrm(TxEndFrmOut), .Pad(PadOut),
.MinFL(r_MinFL), .CrcEn(CrcEnOut), .FullD(r_FullD),
.HugEn(r_HugEn), .DlyCrcEn(r_DlyCrcEn), .IPGT(r_IPGT),
.IPGR1(r_IPGR1), .IPGR2(r_IPGR2), .CollValid(r_CollValid),
.MaxRet(r_MaxRet), .NoBckof(r_NoBckof), .ExDfrEn(r_ExDfrEn),
.MaxFL(r_MaxFL), .MTxEn(mtxen_pad_o), .MTxD(mtxd_pad_o),
.MTxErr(mtxerr_pad_o), .TxUsedData(TxUsedDataIn), .TxDone(TxDoneIn),
.TxRetry(TxRetry), .TxAbort(TxAbortIn), .WillTransmit(WillTransmit),
.ResetCollision(ResetCollision), .RetryCnt(RetryCnt), .StartTxDone(StartTxDone),
.StartTxAbort(StartTxAbort), .MaxCollisionOccured(MaxCollisionOccured), .LateCollision(LateCollision),
.DeferIndication(DeferIndication), .StatePreamble(StatePreamble), .StateData(StateData)
);
 
 
 
 
wire [15:0] RxByteCnt;
wire RxByteCntEq0;
wire RxByteCntGreat2;
wire RxByteCntMaxFrame;
wire RxCrcError;
wire RxStateIdle;
wire RxStatePreamble;
wire RxStateSFD;
wire [1:0] RxStateData;
wire AddressMiss;
 
 
 
// Connecting RxEthMAC
eth_rxethmac rxethmac1
(
.MRxClk(mrx_clk_pad_i), .MRxDV(MRxDV_Lb), .MRxD(MRxD_Lb),
.Transmitting(Transmitting), .HugEn(r_HugEn), .DlyCrcEn(r_DlyCrcEn),
.MaxFL(r_MaxFL), .r_IFG(r_IFG), .Reset(wb_rst_i),
.RxData(RxData), .RxValid(RxValid), .RxStartFrm(RxStartFrm),
.RxEndFrm(RxEndFrm), .ByteCnt(RxByteCnt),
.ByteCntEq0(RxByteCntEq0), .ByteCntGreat2(RxByteCntGreat2), .ByteCntMaxFrame(RxByteCntMaxFrame),
.CrcError(RxCrcError), .StateIdle(RxStateIdle), .StatePreamble(RxStatePreamble),
.StateSFD(RxStateSFD), .StateData(RxStateData),
.MAC(r_MAC), .r_Pro(r_Pro), .r_Bro(r_Bro),
.r_HASH0(r_HASH0), .r_HASH1(r_HASH1), .RxAbort(RxAbort),
.AddressMiss(AddressMiss), .PassAll(r_PassAll), .ControlFrmAddressOK(ControlFrmAddressOK)
);
 
 
// MII Carrier Sense Synchronization
always @ (posedge mtx_clk_pad_i or posedge wb_rst_i)
begin
if(wb_rst_i)
begin
CarrierSense_Tx1 <= 1'b0;
CarrierSense_Tx2 <= 1'b0;
end
else
begin
CarrierSense_Tx1 <= mcrs_pad_i;
CarrierSense_Tx2 <= CarrierSense_Tx1;
end
end
 
assign TxCarrierSense = ~r_FullD & CarrierSense_Tx2;
 
 
// MII Collision Synchronization
always @ (posedge mtx_clk_pad_i or posedge wb_rst_i)
begin
if(wb_rst_i)
begin
Collision_Tx1 <= 1'b0;
Collision_Tx2 <= 1'b0;
end
else
begin
Collision_Tx1 <= mcoll_pad_i;
if(ResetCollision)
Collision_Tx2 <= 1'b0;
else
if(Collision_Tx1)
Collision_Tx2 <= 1'b1;
end
end
 
 
// Synchronized Collision
assign Collision = ~r_FullD & Collision_Tx2;
 
 
 
// Delayed WillTransmit
always @ (posedge mrx_clk_pad_i)
begin
WillTransmit_q <= WillTransmit;
WillTransmit_q2 <= WillTransmit_q;
end
 
 
assign Transmitting = ~r_FullD & WillTransmit_q2;
 
 
 
// Synchronized Receive Enable
always @ (posedge mrx_clk_pad_i or posedge wb_rst_i)
begin
if(wb_rst_i)
RxEnSync <= 1'b0;
else
if(~mrxdv_pad_i)
RxEnSync <= r_RxEn;
end
 
 
 
// Synchronizing WillSendControlFrame to WB_CLK;
always @ (posedge wb_clk_i or posedge wb_rst_i)
begin
if(wb_rst_i)
WillSendControlFrame_sync1 <= 1'b0;
else
WillSendControlFrame_sync1 <= WillSendControlFrame;
end
 
always @ (posedge wb_clk_i or posedge wb_rst_i)
begin
if(wb_rst_i)
WillSendControlFrame_sync2 <= 1'b0;
else
WillSendControlFrame_sync2 <= WillSendControlFrame_sync1;
end
 
always @ (posedge wb_clk_i or posedge wb_rst_i)
begin
if(wb_rst_i)
WillSendControlFrame_sync3 <= 1'b0;
else
WillSendControlFrame_sync3 <= WillSendControlFrame_sync2;
end
 
always @ (posedge wb_clk_i or posedge wb_rst_i)
begin
if(wb_rst_i)
RstTxPauseRq <= 1'b0;
else
RstTxPauseRq <= WillSendControlFrame_sync2 & ~WillSendControlFrame_sync3;
end
 
 
 
 
// TX Pause request Synchronization
always @ (posedge mtx_clk_pad_i or posedge wb_rst_i)
begin
if(wb_rst_i)
begin
TxPauseRq_sync1 <= 1'b0;
TxPauseRq_sync2 <= 1'b0;
TxPauseRq_sync3 <= 1'b0;
end
else
begin
TxPauseRq_sync1 <= (r_TxPauseRq & r_TxFlow);
TxPauseRq_sync2 <= TxPauseRq_sync1;
TxPauseRq_sync3 <= TxPauseRq_sync2;
end
end
 
 
always @ (posedge mtx_clk_pad_i or posedge wb_rst_i)
begin
if(wb_rst_i)
TPauseRq <= 1'b0;
else
TPauseRq <= TxPauseRq_sync2 & (~TxPauseRq_sync3);
end
 
 
wire LatchedMRxErr;
reg RxAbort_latch;
reg RxAbort_sync1;
reg RxAbort_wb;
reg RxAbortRst_sync1;
reg RxAbortRst;
 
// Synchronizing RxAbort to the WISHBONE clock
always @ (posedge mrx_clk_pad_i or posedge wb_rst_i)
begin
if(wb_rst_i)
RxAbort_latch <= 1'b0;
else if(RxAbort | (ShortFrame & ~r_RecSmall) | LatchedMRxErr & ~InvalidSymbol | (ReceivedPauseFrm & (~r_PassAll)))
RxAbort_latch <= 1'b1;
else if(RxAbortRst)
RxAbort_latch <= 1'b0;
end
 
always @ (posedge wb_clk_i or posedge wb_rst_i)
begin
if(wb_rst_i)
begin
RxAbort_sync1 <= 1'b0;
RxAbort_wb <= 1'b0;
RxAbort_wb <= 1'b0;
end
else
begin
RxAbort_sync1 <= RxAbort_latch;
RxAbort_wb <= RxAbort_sync1;
end
end
 
always @ (posedge mrx_clk_pad_i or posedge wb_rst_i)
begin
if(wb_rst_i)
begin
RxAbortRst_sync1 <= 1'b0;
RxAbortRst <= 1'b0;
end
else
begin
RxAbortRst_sync1 <= RxAbort_wb;
RxAbortRst <= RxAbortRst_sync1;
end
end
 
 
 
// Connecting Wishbone module
eth_wishbone wishbone
(
.WB_CLK_I(wb_clk_i), .WB_DAT_I(wb_dat_i),
.WB_DAT_O(BD_WB_DAT_O),
 
// WISHBONE slave
.WB_ADR_I(wb_adr_i[9:2]), .WB_WE_I(wb_we_i),
.BDCs(BDCs), .WB_ACK_O(BDAck),
 
.Reset(wb_rst_i),
 
// WISHBONE master
.m_wb_adr_o(m_wb_adr_tmp), .m_wb_sel_o(m_wb_sel_o), .m_wb_we_o(m_wb_we_o),
.m_wb_dat_i(m_wb_dat_i), .m_wb_dat_o(m_wb_dat_o), .m_wb_cyc_o(m_wb_cyc_o),
.m_wb_stb_o(m_wb_stb_o), .m_wb_ack_i(m_wb_ack_i), .m_wb_err_i(m_wb_err_i),
`ifdef ETH_WISHBONE_B3
.m_wb_cti_o(m_wb_cti_o), .m_wb_bte_o(m_wb_bte_o),
`endif
 
//TX
.MTxClk(mtx_clk_pad_i), .TxStartFrm(TxStartFrm), .TxEndFrm(TxEndFrm),
.TxUsedData(TxUsedData), .TxData(TxData),
.TxRetry(TxRetry), .TxAbort(TxAbort), .TxUnderRun(TxUnderRun),
.TxDone(TxDone),
.PerPacketCrcEn(PerPacketCrcEn), .PerPacketPad(PerPacketPad),
 
// Register
.r_TxEn(r_TxEn), .r_RxEn(r_RxEn), .r_TxBDNum(r_TxBDNum),
.r_RxFlow(r_RxFlow), .r_PassAll(r_PassAll),
 
//RX
.MRxClk(mrx_clk_pad_i), .RxData(RxData), .RxValid(RxValid),
.RxStartFrm(RxStartFrm), .RxEndFrm(RxEndFrm),
.Busy_IRQ(Busy_IRQ), .RxE_IRQ(RxE_IRQ), .RxB_IRQ(RxB_IRQ),
.TxE_IRQ(TxE_IRQ), .TxB_IRQ(TxB_IRQ),
 
.RxAbort(RxAbort_wb), .RxStatusWriteLatched_sync2(RxStatusWriteLatched_sync2),
 
.InvalidSymbol(InvalidSymbol), .LatchedCrcError(LatchedCrcError), .RxLength(RxByteCnt),
.RxLateCollision(RxLateCollision), .ShortFrame(ShortFrame), .DribbleNibble(DribbleNibble),
.ReceivedPacketTooBig(ReceivedPacketTooBig), .LoadRxStatus(LoadRxStatus), .RetryCntLatched(RetryCntLatched),
.RetryLimit(RetryLimit), .LateCollLatched(LateCollLatched), .DeferLatched(DeferLatched),
.RstDeferLatched(RstDeferLatched),
.CarrierSenseLost(CarrierSenseLost),.ReceivedPacketGood(ReceivedPacketGood), .AddressMiss(AddressMiss),
.ReceivedPauseFrm(ReceivedPauseFrm)
`ifdef ETH_BIST
,
.mbist_si_i (mbist_si_i),
.mbist_so_o (mbist_so_o),
.mbist_ctrl_i (mbist_ctrl_i)
`endif
`ifdef WISHBONE_DEBUG
,
.dbg_dat0(wb_dbg_dat0)
`endif
 
);
 
assign m_wb_adr_o = {m_wb_adr_tmp, 2'h0};
 
// Connecting MacStatus module
eth_macstatus macstatus1
(
.MRxClk(mrx_clk_pad_i), .Reset(wb_rst_i),
.ReceiveEnd(ReceiveEnd), .ReceivedPacketGood(ReceivedPacketGood), .ReceivedLengthOK(ReceivedLengthOK),
.RxCrcError(RxCrcError), .MRxErr(MRxErr_Lb), .MRxDV(MRxDV_Lb),
.RxStateSFD(RxStateSFD), .RxStateData(RxStateData), .RxStatePreamble(RxStatePreamble),
.RxStateIdle(RxStateIdle), .Transmitting(Transmitting), .RxByteCnt(RxByteCnt),
.RxByteCntEq0(RxByteCntEq0), .RxByteCntGreat2(RxByteCntGreat2), .RxByteCntMaxFrame(RxByteCntMaxFrame),
.InvalidSymbol(InvalidSymbol),
.MRxD(MRxD_Lb), .LatchedCrcError(LatchedCrcError), .Collision(mcoll_pad_i),
.CollValid(r_CollValid), .RxLateCollision(RxLateCollision), .r_RecSmall(r_RecSmall),
.r_MinFL(r_MinFL), .r_MaxFL(r_MaxFL), .ShortFrame(ShortFrame),
.DribbleNibble(DribbleNibble), .ReceivedPacketTooBig(ReceivedPacketTooBig), .r_HugEn(r_HugEn),
.LoadRxStatus(LoadRxStatus), .RetryCnt(RetryCnt), .StartTxDone(StartTxDone),
.StartTxAbort(StartTxAbort), .RetryCntLatched(RetryCntLatched), .MTxClk(mtx_clk_pad_i),
.MaxCollisionOccured(MaxCollisionOccured), .RetryLimit(RetryLimit), .LateCollision(LateCollision),
.LateCollLatched(LateCollLatched), .DeferIndication(DeferIndication), .DeferLatched(DeferLatched),
.RstDeferLatched(RstDeferLatched),
.TxStartFrm(TxStartFrmOut), .StatePreamble(StatePreamble), .StateData(StateData),
.CarrierSense(CarrierSense_Tx2), .CarrierSenseLost(CarrierSenseLost), .TxUsedData(TxUsedDataIn),
.LatchedMRxErr(LatchedMRxErr), .Loopback(r_LoopBck), .r_FullD(r_FullD)
);
 
 
endmodule
/eth_top.v
3,7 → 3,7
//// eth_top.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
139,7 → 139,7
//
// Revision 1.24 2002/04/22 14:15:42 mohor
// Wishbone signals are registered when ETH_REGISTERED_OUTPUTS is
// selected in eth_defines.v
// selected in ethmac_defines.v
//
// Revision 1.23 2002/03/25 13:33:53 mohor
// md_padoen_o changed to md_padoe_o. Signal was always active high, just
237,7 → 237,7
//
 
 
`include "eth_defines.v"
`include "ethmac_defines.v"
`include "timescale.v"
 
 
/eth_transmitcontrol.v
3,7 → 3,7
//// eth_transmitcontrol.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_macstatus.v
3,7 → 3,7
//// eth_macstatus.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_registers.v
3,7 → 3,7
//// eth_registers.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
162,7 → 162,7
//
//
 
`include "eth_defines.v"
`include "ethmac_defines.v"
`include "timescale.v"
 
 
/eth_crc.v
3,7 → 3,7
//// eth_crc.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_rxstatem.v
3,7 → 3,7
//// eth_rxstatem.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////
/eth_txstatem.v
3,7 → 3,7
//// eth_txstatem.v ////
//// ////
//// This file is part of the Ethernet IP core project ////
//// http://www.opencores.org/projects/ethmac/ ////
//// http://www.opencores.org/project,ethmac ////
//// ////
//// Author(s): ////
//// - Igor Mohor (igorM@opencores.org) ////

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