Subversion Repositories pcie_mini

-------------------------------------------------------------------------------
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-------------------------------------------------------------------------------
-- Project    : Spartan-6 Integrated Block for PCI Express
-- File       : gtpa1_dual_wrapper_top.vhd
-- Description: PCI Express Wrapper for GTPA1_DUAL
--
-------------------------------------------------------------------------------
 
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;
use ieee.numeric_bit.all;
library unisim;
use unisim.vcomponents.all;
--synthesis translate_off
use unisim.vpkg.all;
library secureip;
use secureip.all;
--synthesis translate_on
 
entity gtpa1_dual_wrapper_top is
  generic (
    SIMULATION   : boolean := FALSE
  );
  port (
    -- Clock and reset
    sys_rst_n         : in  std_logic;
    sys_clk           : in  std_logic;
    gt_usrclk         : in  std_logic;
    gt_usrclk2x       : in  std_logic;
    gt_refclk_out     : out std_logic;
    gt_reset_done     : out std_logic;
    rxreset           : in  std_logic;
 
    -- RX and TX path GTP <-> PCIe
    rx_char_is_k      : out std_logic_vector(1 downto 0);
    rx_data           : out std_logic_vector(15 downto 0);
    rx_enter_elecidle : out std_logic;
    rx_status         : out std_logic_vector(2 downto 0);
    rx_polarity       : in  std_logic;
    tx_char_disp_mode : in  std_logic_vector(1 downto 0);
    tx_char_is_k      : in  std_logic_vector(1 downto 0);
    tx_rcvr_det       : in  std_logic;
    tx_data           : in  std_logic_vector(15 downto 0);
 
    -- Status and control path GTP <-> PCIe
    phystatus         : out  std_logic;
    gt_rx_valid       : out std_logic;
    gt_plllkdet_out   : out std_logic;
    gt_tx_elec_idle   : in  std_logic;
    gt_power_down     : in  std_logic_vector(1 downto 0);
 
    -- PCIe serial datapath
    arp_txp           : out std_logic;
    arp_txn           : out std_logic;
    arp_rxp           : in  std_logic;
    arp_rxn           : in  std_logic
  );
end gtpa1_dual_wrapper_top;
 
architecture rtl of gtpa1_dual_wrapper_top is
 
  ------------------------
  -- Function Declarations
  ------------------------
  function SIM_INT(SIMULATION : boolean) return integer is
  begin
    if SIMULATION then
      return 1;
    else
      return 0;
    end if;
  end SIM_INT;
 
  component GTPA1_DUAL_WRAPPER is
  generic
  (
    -- Simulation attributes
    WRAPPER_SIM_GTPRESET_SPEEDUP    : integer   := 0; -- Set to 1 to speed up sim reset
    WRAPPER_SIMULATION              : integer   := 0  -- Set to 1 for simulation
  );
  port
  (
 
    --_________________________________________________________________________
    --_________________________________________________________________________
    --TILE0  (X0_Y0)
 
    ------------------------ Loopback and Powerdown Ports ----------------------
    TILE0_RXPOWERDOWN0_IN                   : in   std_logic_vector(1 downto 0);
    TILE0_RXPOWERDOWN1_IN                   : in   std_logic_vector(1 downto 0);
    TILE0_TXPOWERDOWN0_IN                   : in   std_logic_vector(1 downto 0);
    TILE0_TXPOWERDOWN1_IN                   : in   std_logic_vector(1 downto 0);
    --------------------------------- PLL Ports --------------------------------
    TILE0_CLK00_IN                          : in   std_logic;
    TILE0_CLK01_IN                          : in   std_logic;
    TILE0_GTPRESET0_IN                      : in   std_logic;
    TILE0_GTPRESET1_IN                      : in   std_logic;
    TILE0_PLLLKDET0_OUT                     : out  std_logic;
    TILE0_PLLLKDET1_OUT                     : out  std_logic;
    TILE0_RESETDONE0_OUT                    : out  std_logic;
    TILE0_RESETDONE1_OUT                    : out  std_logic;
    ----------------------- Receive Ports - 8b10b Decoder ----------------------
    TILE0_RXCHARISK0_OUT                    : out  std_logic_vector(1 downto 0);
    TILE0_RXCHARISK1_OUT                    : out  std_logic_vector(1 downto 0);
    TILE0_RXDISPERR0_OUT                    : out  std_logic_vector(1 downto 0);
    TILE0_RXDISPERR1_OUT                    : out  std_logic_vector(1 downto 0);
    TILE0_RXNOTINTABLE0_OUT                 : out  std_logic_vector(1 downto 0);
    TILE0_RXNOTINTABLE1_OUT                 : out  std_logic_vector(1 downto 0);
    ---------------------- Receive Ports - Clock Correction --------------------
    TILE0_RXCLKCORCNT0_OUT                  : out  std_logic_vector(2 downto 0);
    TILE0_RXCLKCORCNT1_OUT                  : out  std_logic_vector(2 downto 0);
    --------------- Receive Ports - Comma Detection and Alignment --------------
    TILE0_RXENMCOMMAALIGN0_IN               : in   std_logic;
    TILE0_RXENMCOMMAALIGN1_IN               : in   std_logic;
    TILE0_RXENPCOMMAALIGN0_IN               : in   std_logic;
    TILE0_RXENPCOMMAALIGN1_IN               : in   std_logic;
    ------------------- Receive Ports - RX Data Path interface -----------------
    TILE0_RXDATA0_OUT                       : out  std_logic_vector(15 downto 0);
    TILE0_RXDATA1_OUT                       : out  std_logic_vector(15 downto 0);
    TILE0_RXRESET0_IN                       : in   std_logic;
    TILE0_RXRESET1_IN                       : in   std_logic;
    TILE0_RXUSRCLK0_IN                      : in   std_logic;
    TILE0_RXUSRCLK1_IN                      : in   std_logic;
    TILE0_RXUSRCLK20_IN                     : in   std_logic;
    TILE0_RXUSRCLK21_IN                     : in   std_logic;
    ------- Receive Ports - RX Driver,OOB signalling,Coupling and Eq.,CDR ------
    TILE0_GATERXELECIDLE0_IN                : in   std_logic;
    TILE0_GATERXELECIDLE1_IN                : in   std_logic;
    TILE0_IGNORESIGDET0_IN                  : in   std_logic;
    TILE0_IGNORESIGDET1_IN                  : in   std_logic;
    TILE0_RXELECIDLE0_OUT                   : out  std_logic;
    TILE0_RXELECIDLE1_OUT                   : out  std_logic;
    TILE0_RXN0_IN                           : in   std_logic;
    TILE0_RXN1_IN                           : in   std_logic;
    TILE0_RXP0_IN                           : in   std_logic;
    TILE0_RXP1_IN                           : in   std_logic;
    ----------- Receive Ports - RX Elastic Buffer and Phase Alignment ----------
    TILE0_RXSTATUS0_OUT                     : out  std_logic_vector(2 downto 0);
    TILE0_RXSTATUS1_OUT                     : out  std_logic_vector(2 downto 0);
    -------------- Receive Ports - RX Pipe Control for PCI Express -------------
    TILE0_PHYSTATUS0_OUT                    : out  std_logic;
    TILE0_PHYSTATUS1_OUT                    : out  std_logic;
    TILE0_RXVALID0_OUT                      : out  std_logic;
    TILE0_RXVALID1_OUT                      : out  std_logic;
    -------------------- Receive Ports - RX Polarity Control -------------------
    TILE0_RXPOLARITY0_IN                    : in   std_logic;
    TILE0_RXPOLARITY1_IN                    : in   std_logic;
    ---------------------------- TX/RX Datapath Ports --------------------------
    TILE0_GTPCLKOUT0_OUT                    : out  std_logic_vector(1 downto 0);
    TILE0_GTPCLKOUT1_OUT                    : out  std_logic_vector(1 downto 0);
    ------------------- Transmit Ports - 8b10b Encoder Control -----------------
    TILE0_TXCHARDISPMODE0_IN                : in   std_logic_vector(1 downto 0);
    TILE0_TXCHARDISPMODE1_IN                : in   std_logic_vector(1 downto 0);
    TILE0_TXCHARISK0_IN                     : in   std_logic_vector(1 downto 0);
    TILE0_TXCHARISK1_IN                     : in   std_logic_vector(1 downto 0);
    ------------------ Transmit Ports - TX Data Path interface -----------------
    TILE0_TXDATA0_IN                        : in   std_logic_vector(15 downto 0);
    TILE0_TXDATA1_IN                        : in   std_logic_vector(15 downto 0);
    TILE0_TXUSRCLK0_IN                      : in   std_logic;
    TILE0_TXUSRCLK1_IN                      : in   std_logic;
    TILE0_TXUSRCLK20_IN                     : in   std_logic;
    TILE0_TXUSRCLK21_IN                     : in   std_logic;
    --------------- Transmit Ports - TX Driver and OOB signalling --------------
    TILE0_TXN0_OUT                          : out  std_logic;
    TILE0_TXN1_OUT                          : out  std_logic;
    TILE0_TXP0_OUT                          : out  std_logic;
    TILE0_TXP1_OUT                          : out  std_logic;
    ----------------- Transmit Ports - TX Ports for PCI Express ----------------
    TILE0_TXDETECTRX0_IN                    : in   std_logic;
    TILE0_TXDETECTRX1_IN                    : in   std_logic;
    TILE0_TXELECIDLE0_IN                    : in   std_logic;
    TILE0_TXELECIDLE1_IN                    : in   std_logic
  );
  end component GTPA1_DUAL_WRAPPER;
 
  -------------------------------------
  -- Local signals
  -------------------------------------
 
  signal gt_refclk : std_logic_vector(1 downto 0);
  signal sys_rst   : std_logic;
 
begin
 
  GT_i : GTPA1_DUAL_WRAPPER
  generic map (
    -- Simulation attributes
    WRAPPER_SIM_GTPRESET_SPEEDUP => 1,
    WRAPPER_SIMULATION           => SIM_INT(SIMULATION)
  )
  port map (
 
    ------------------------ Loopback and Powerdown Ports ----------------------
    TILE0_RXPOWERDOWN0_IN => gt_power_down,
    TILE0_RXPOWERDOWN1_IN => "10",
    TILE0_TXPOWERDOWN0_IN => gt_power_down,
    TILE0_TXPOWERDOWN1_IN => "10",
    --------------------------------- PLL Ports --------------------------------
    TILE0_CLK00_IN       => sys_clk,
    TILE0_CLK01_IN       => '0',
    TILE0_GTPRESET0_IN   => sys_rst,
    TILE0_GTPRESET1_IN   => '1',
    TILE0_PLLLKDET0_OUT  => gt_plllkdet_out,
    TILE0_PLLLKDET1_OUT  => OPEN,
    TILE0_RESETDONE0_OUT => gt_reset_done,
    TILE0_RESETDONE1_OUT => OPEN,
    ----------------------- Receive Ports - 8b10b Decoder ----------------------
    TILE0_RXCHARISK0_OUT(1) => rx_char_is_k(0),
    TILE0_RXCHARISK0_OUT(0) => rx_char_is_k(1),
    TILE0_RXCHARISK1_OUT    => OPEN,
    TILE0_RXDISPERR0_OUT    => OPEN,
    TILE0_RXDISPERR1_OUT    => OPEN,
    TILE0_RXNOTINTABLE0_OUT => OPEN,
    TILE0_RXNOTINTABLE1_OUT => OPEN,
    ---------------------- Receive Ports - Clock Correction --------------------
    TILE0_RXCLKCORCNT0_OUT => OPEN,
    TILE0_RXCLKCORCNT1_OUT => OPEN,
    --------------- Receive Ports - Comma Detection and Alignment --------------
    TILE0_RXENMCOMMAALIGN0_IN => '1',
    TILE0_RXENMCOMMAALIGN1_IN => '1',
    TILE0_RXENPCOMMAALIGN0_IN => '1',
    TILE0_RXENPCOMMAALIGN1_IN => '1',
    ------------------- Receive Ports - RX Data Path interface -----------------
    TILE0_RXDATA0_OUT(15 downto 8) => rx_data(7 downto 0),
    TILE0_RXDATA0_OUT(7 downto 0)  => rx_data(15 downto 8),
    TILE0_RXDATA1_OUT              => OPEN,
    TILE0_RXRESET0_IN              => rxreset,
    TILE0_RXRESET1_IN              => '1',
    TILE0_RXUSRCLK0_IN             => gt_usrclk2x,
    TILE0_RXUSRCLK1_IN             => '0',
    TILE0_RXUSRCLK20_IN            => gt_usrclk,
    TILE0_RXUSRCLK21_IN            => '0',
    ------- Receive Ports - RX Driver,OOB signalling,Coupling and Eq.,CDR ------
    TILE0_GATERXELECIDLE0_IN => '0',
    TILE0_GATERXELECIDLE1_IN => '0',
    TILE0_IGNORESIGDET0_IN   => '0',
    TILE0_IGNORESIGDET1_IN   => '0',
    TILE0_RXELECIDLE0_OUT    => rx_enter_elecidle,
    TILE0_RXELECIDLE1_OUT    => OPEN,
    TILE0_RXN0_IN            => arp_rxn,
    TILE0_RXN1_IN            => '0',
    TILE0_RXP0_IN            => arp_rxp,
    TILE0_RXP1_IN            => '0',
    ----------- Receive Ports - RX Elastic Buffer and Phase Alignment ----------
    TILE0_RXSTATUS0_OUT => rx_status,
    TILE0_RXSTATUS1_OUT => OPEN,
    -------------- Receive Ports - RX Pipe Control for PCI Express -------------
    TILE0_PHYSTATUS0_OUT => phystatus,
    TILE0_PHYSTATUS1_OUT => OPEN,
    TILE0_RXVALID0_OUT   => gt_rx_valid,
    TILE0_RXVALID1_OUT   => OPEN,
    -------------------- Receive Ports - RX Polarity Control -------------------
    TILE0_RXPOLARITY0_IN => rx_polarity,
    TILE0_RXPOLARITY1_IN => '0',
    ---------------------------- TX/RX Datapath Ports --------------------------
    TILE0_GTPCLKOUT0_OUT => gt_refclk,
    TILE0_GTPCLKOUT1_OUT => OPEN,
    ------------------- Transmit Ports - 8b10b Encoder Control -----------------
    TILE0_TXCHARDISPMODE0_IN(1) => tx_char_disp_mode(0),
    TILE0_TXCHARDISPMODE0_IN(0) => tx_char_disp_mode(1),
    TILE0_TXCHARDISPMODE1_IN(1) => '0',
    TILE0_TXCHARDISPMODE1_IN(0) => '0',
    TILE0_TXCHARISK0_IN(1)   => tx_char_is_k(0),
    TILE0_TXCHARISK0_IN(0)   => tx_char_is_k(1),
    TILE0_TXCHARISK1_IN(1)   => '0',
    TILE0_TXCHARISK1_IN(0)   => '0',
    ------------------ Transmit Ports - TX Data Path interface -----------------
    TILE0_TXDATA0_IN(15 downto 8) => tx_data(7 downto 0),
    TILE0_TXDATA0_IN(7 downto 0)  => tx_data(15 downto 8),
    TILE0_TXDATA1_IN(15 downto 8) => x"00",
    TILE0_TXDATA1_IN(7 downto 0)  => x"00",
    TILE0_TXUSRCLK0_IN            => gt_usrclk2x,
    TILE0_TXUSRCLK1_IN            => '0',
    TILE0_TXUSRCLK20_IN           => gt_usrclk,
    TILE0_TXUSRCLK21_IN           => '0',
    --------------- Transmit Ports - TX Driver and OOB signalling --------------
    TILE0_TXN0_OUT => arp_txn,
    TILE0_TXN1_OUT => OPEN,
    TILE0_TXP0_OUT => arp_txp,
    TILE0_TXP1_OUT => OPEN,
    ----------------- Transmit Ports - TX Ports for PCI Express ----------------
    TILE0_TXDETECTRX0_IN => tx_rcvr_det,
    TILE0_TXDETECTRX1_IN => '0',
    TILE0_TXELECIDLE0_IN => gt_tx_elec_idle,
    TILE0_TXELECIDLE1_IN => '0'  );
 
  sys_rst       <= not sys_rst_n;
  gt_refclk_out <= gt_refclk(0);
 
end rtl;