git.zerfleddert.de Git - raggedstone/blob - dhwk/source/pci/pci_interface.vhd

   1 -- VHDL model created from schematic pci_interface.sch -- Jan 09 09:34:13 2007
   2
   3 LIBRARY ieee;
   4
   5 USE ieee.std_logic_1164.ALL;
   6 USE ieee.numeric_std.ALL;
   7
   8
   9 entity PCI_INTERFACE is
  10         Port ( PCI_CBEn : In std_logic_vector (3 downto 0);
  11                PCI_CLOCK : In std_logic;
  12                PCI_FRAMEn : In std_logic;
  13                PCI_IDSEL : In std_logic;
  14                PCI_IRDYn : In std_logic;
  15                PCI_RSTn : In std_logic;
  16                READ_FIFO : In std_logic;
  17                REVISON_ID : In std_logic_vector (7 downto 0);
  18                USER_DATA_OUT : In std_logic_vector (31 downto 0);
  19                VENDOR_ID : In std_logic_vector (15 downto 0);
  20                PCI_AD : InOut std_logic_vector (31 downto 0);
  21                PCI_PAR : InOut std_logic;
  22                AD_REG : Out std_logic_vector (31 downto 0);
  23                ADDR_REG : Out std_logic_vector (31 downto 0);
  24                CBE_REGn : Out std_logic_vector (3 downto 0);
  25                DEVSELn : Out std_logic;
  26                FIFO_RDn : Out std_logic;
  27                IO_WR_COM : Out std_logic;
  28                IRDY_REGn : Out std_logic;
  29                PCI_DEVSELn : Out std_logic;
  30                PCI_PERRn : Out std_logic;
  31                PCI_SERRn : Out std_logic;
  32                PCI_STOPn : Out std_logic;
  33                PCI_TRDYn : Out std_logic;
  34                READ_SEL : Out std_logic_vector (1 downto 0);
  35                TRDYn : Out std_logic );
  36 end PCI_INTERFACE;
  37
  38 architecture SCHEMATIC of PCI_INTERFACE is
  39
  40         SIGNAL gnd : std_logic := '0';
  41         SIGNAL vcc : std_logic := '1';
  42
  43         signal IRDY_REGn_DUMMY : std_logic;
  44         signal PAR_REG : std_logic;
  45         signal PERR : std_logic;
  46         signal SERR : std_logic;
  47         signal CF_RD_COM : std_logic;
  48         signal CF_WR_COM : std_logic;
  49         signal LAR : std_logic;
  50         signal MY_ADDR : std_logic;
  51         signal SERR_CHECK : std_logic;
  52         signal IDSEL_REG : std_logic;
  53         signal FRAME_REGn : std_logic;
  54         signal PERR_CHECK : std_logic;
  55         signal OE_PCI_PAR : std_logic;
  56         signal OE_PCI_PERR : std_logic;
  57         signal TRDYn_DUMMY : std_logic;
  58         signal CONF_DATA_10H : std_logic_vector (31 downto 0);
  59         signal CONF_DATA_04H : std_logic_vector (31 downto 0);
  60         signal CONF_DATA : std_logic_vector (31 downto 0);
  61         signal READ_SEL_DUMMY : std_logic_vector (1 downto 0);
  62         signal CBE_REGn_DUMMY : std_logic_vector (3 downto 0);
  63         signal AD_REG_DUMMY : std_logic_vector (31 downto 0);
  64         signal ADDR_REG_DUMMY : std_logic_vector (31 downto 0);
  65
  66         component STEUERUNG
  67                 Port ( AD_REG : In std_logic_vector (31 downto 0);
  68                        CBE_REGn : In std_logic_vector (3 downto 0);
  69                        FRAME_REGn : In std_logic;
  70                        IDSEL_REG : In std_logic;
  71                        IO_SPACE : In std_logic;
  72                        MY_ADDR : In std_logic;
  73                        PCI_CLOCK : In std_logic;
  74                        PCI_RSTn : In std_logic;
  75                        READ_FIFO : In std_logic;
  76                        CF_RD_COM : Out std_logic;
  77                        CF_WR_COM : Out std_logic;
  78                        DEVSELn : Out std_logic;
  79                        FIFO_RDn : Out std_logic;
  80                        IO_RD_COM : Out std_logic;
  81                        IO_WR_COM : Out std_logic;
  82                        LAR : Out std_logic;
  83                        OE_PCI_PAR : Out std_logic;
  84                        OE_PCI_PERR : Out std_logic;
  85                        PCI_DEVSELn : Out std_logic;
  86                        PCI_STOPn : Out std_logic;
  87                        PCI_TRDYn : Out std_logic;
  88                        PERR_CHECK : Out std_logic;
  89                        READ : Out std_logic;
  90                        SERR_CHECK : Out std_logic;
  91                        TRDYn : Out std_logic );
  92         end component;
  93
  94         component PARITY
  95                 Port ( OE_PCI_PAR : In std_logic;
  96                        OE_PCI_PERR : In std_logic;
  97                        PA_ER_RE : In std_logic;
  98                        PAR_IN : In std_logic_vector (35 downto 0);
  99                        PAR_REG : In std_logic;
 100                        PCI_CLOCK : In std_logic;
 101                        PCI_RSTn : In std_logic;
 102                        PERR_CHECK : In std_logic;
 103                        SERR_CHECK : In std_logic;
 104                        SERR_ENA : In std_logic;
 105                        PCI_PAR : InOut std_logic;
 106                        PCI_PERRn : Out std_logic;
 107                        PCI_SERRn : Out std_logic;
 108                        PERR : Out std_logic;
 109                        SERR : Out std_logic );
 110         end component;
 111
 112         component IO_MUX_REG
 113                 Port ( CONFIG_DATA : In std_logic_vector (31 downto 0);
 114                        LOAD_ADDR_REG : In std_logic;
 115                        PCI_CBEn : In std_logic_vector (3 downto 0);
 116                        PCI_CLOCK : In std_logic;
 117                        PCI_FRAMEn : In std_logic;
 118                        PCI_IDSEL : In std_logic;
 119                        PCI_IRDYn : In std_logic;
 120                        PCI_PAR : In std_logic;
 121                        PCI_RSTn : In std_logic;
 122                        READ_SEL : In std_logic_vector (1 downto 0);
 123                        USER_DATA : In std_logic_vector (31 downto 0);
 124                        PCI_AD : InOut std_logic_vector (31 downto 0);
 125                        AD_REG : Out std_logic_vector (31 downto 0);
 126                        ADDR_REG : Out std_logic_vector (31 downto 0);
 127                        CBE_REGn : Out std_logic_vector (3 downto 0);
 128                        FRAME_REGn : Out std_logic;
 129                        IDSEL_REG : Out std_logic;
 130                        IRDY_REGn : Out std_logic;
 131                        PAR_REG : Out std_logic );
 132         end component;
 133
 134         component CONFIG_SPACE_HEADER
 135                 Port ( AD_REG : In std_logic_vector (31 downto 0);
 136                        ADDR_REG : In std_logic_vector (31 downto 0);
 137                        CBE_REGn : In std_logic_vector (3 downto 0);
 138                        CF_RD_COM : In std_logic;
 139                        CF_WR_COM : In std_logic;
 140                        IRDY_REGn : In std_logic;
 141                        PCI_CLOCK : In std_logic;
 142                        PCI_RSTn : In std_logic;
 143                        PERR : In std_logic;
 144                        REVISION_ID : In std_logic_vector (7 downto 0);
 145                        SERR : In std_logic;
 146                        TRDYn : In std_logic;
 147                        VENDOR_ID : In std_logic_vector (15 downto 0);
 148                        CONF_DATA : Out std_logic_vector (31 downto 0);
 149                        CONF_DATA_04H : Out std_logic_vector (31 downto 0);
 150                        CONF_DATA_10H : Out std_logic_vector (31 downto 0) );
 151         end component;
 152
 153 begin
 154
 155         ADDR_REG <= ADDR_REG_DUMMY;
 156         AD_REG <= AD_REG_DUMMY;
 157         CBE_REGn <= CBE_REGn_DUMMY;
 158         READ_SEL <= READ_SEL_DUMMY;
 159         TRDYn <= TRDYn_DUMMY;
 160         IRDY_REGn <= IRDY_REGn_DUMMY;
 161
 162         I7 : STEUERUNG
 163         Port Map ( AD_REG(31 downto 0)=>AD_REG_DUMMY(31 downto 0),
 164         CBE_REGn(3 downto 0)=>CBE_REGn_DUMMY(3 downto 0),
 165         FRAME_REGn=>FRAME_REGn, IDSEL_REG=>IDSEL_REG,
 166         IO_SPACE=>CONF_DATA_04H(0), MY_ADDR=>MY_ADDR,
 167         PCI_CLOCK=>PCI_CLOCK, PCI_RSTn=>PCI_RSTn,
 168         READ_FIFO=>READ_FIFO, CF_RD_COM=>CF_RD_COM,
 169         CF_WR_COM=>CF_WR_COM, DEVSELn=>DEVSELn,
 170         FIFO_RDn=>FIFO_RDn, IO_RD_COM=>READ_SEL_DUMMY(0),
 171         IO_WR_COM=>IO_WR_COM, LAR=>LAR, OE_PCI_PAR=>OE_PCI_PAR,
 172         OE_PCI_PERR=>OE_PCI_PERR, PCI_DEVSELn=>PCI_DEVSELn,
 173         PCI_STOPn=>PCI_STOPn, PCI_TRDYn=>PCI_TRDYn,
 174         PERR_CHECK=>PERR_CHECK, READ=>READ_SEL_DUMMY(1),
 175         SERR_CHECK=>SERR_CHECK, TRDYn=>TRDYn_DUMMY );
 176         I5 : PARITY
 177         Port Map ( OE_PCI_PAR=>OE_PCI_PAR, OE_PCI_PERR=>OE_PCI_PERR,
 178                    PA_ER_RE=>CONF_DATA_04H(6),
 179                    PAR_IN(31 downto 0)=>AD_REG_DUMMY(31 downto 0),
 180                    PAR_IN(35 downto 32)=>CBE_REGn_DUMMY(3 downto 0),
 181                    PAR_REG=>PAR_REG, PCI_CLOCK=>PCI_CLOCK,
 182                    PCI_RSTn=>PCI_RSTn, PERR_CHECK=>PERR_CHECK,
 183                    SERR_CHECK=>SERR_CHECK, SERR_ENA=>CONF_DATA_04H(8),
 184                    PCI_PAR=>PCI_PAR, PCI_PERRn=>PCI_PERRn,
 185                    PCI_SERRn=>PCI_SERRn, PERR=>PERR, SERR=>SERR );
 186         I2 : IO_MUX_REG
 187         Port Map ( CONFIG_DATA(31 downto 0)=>CONF_DATA(31 downto 0),
 188                    LOAD_ADDR_REG=>LAR,
 189                    PCI_CBEn(3 downto 0)=>PCI_CBEn(3 downto 0),
 190                    PCI_CLOCK=>PCI_CLOCK, PCI_FRAMEn=>PCI_FRAMEn,
 191                    PCI_IDSEL=>PCI_IDSEL, PCI_IRDYn=>PCI_IRDYn,
 192                    PCI_PAR=>PCI_PAR, PCI_RSTn=>PCI_RSTn,
 193                    READ_SEL(1 downto 0)=>READ_SEL_DUMMY(1 downto 0),
 194                    USER_DATA(31 downto 0)=>USER_DATA_OUT(31 downto 0),
 195                    PCI_AD(31 downto 0)=>PCI_AD(31 downto 0),
 196                    AD_REG(31 downto 0)=>AD_REG_DUMMY(31 downto 0),
 197                    ADDR_REG(31 downto 0)=>ADDR_REG_DUMMY(31 downto 0),
 198                    CBE_REGn(3 downto 0)=>CBE_REGn_DUMMY(3 downto 0),
 199                    FRAME_REGn=>FRAME_REGn, IDSEL_REG=>IDSEL_REG,
 200                    IRDY_REGn=>IRDY_REGn_DUMMY, PAR_REG=>PAR_REG );
 201         I1 : CONFIG_SPACE_HEADER
 202         Port Map ( AD_REG(31 downto 0)=>AD_REG_DUMMY(31 downto 0),
 203         ADDR_REG(31 downto 0)=>ADDR_REG_DUMMY(31 downto 0),
 204         CBE_REGn(3 downto 0)=>CBE_REGn_DUMMY(3 downto 0),
 205         CF_RD_COM=>CF_RD_COM, CF_WR_COM=>CF_WR_COM,
 206         IRDY_REGn=>IRDY_REGn_DUMMY, PCI_CLOCK=>PCI_CLOCK,
 207         PCI_RSTn=>PCI_RSTn, PERR=>PERR,
 208         REVISION_ID(7 downto 0)=>REVISON_ID(7 downto 0),
 209         SERR=>SERR, TRDYn=>TRDYn_DUMMY,
 210         VENDOR_ID(15 downto 0)=>VENDOR_ID(15 downto 0),
 211         CONF_DATA(31 downto 0)=>CONF_DATA(31 downto 0),
 212         CONF_DATA_04H(31 downto 0)=>CONF_DATA_04H(31 downto 0),
 213         CONF_DATA_10H(31 downto 0)=>CONF_DATA_10H(31 downto 0) );
 214
 215         process (PCI_CLOCK,PCI_RSTn)
 216         begin
 217         if PCI_RSTn = '0' then
 218                 MY_ADDR <= '0';
 219
 220         elsif (rising_edge(PCI_CLOCK)) then
 221                 if (CONF_DATA_10H(31 downto 2) = ADDR_REG_DUMMY(31 downto 2)) then
 222                         MY_ADDR <= '1';
 223                 else
 224                         MY_ADDR <= '0';
 225                 end if;
 226         end if;
 227         end process;
 228 end SCHEMATIC;