git.zerfleddert.de Git - raggedstone/blob - ethernet/source/pci/pci_target_unit.v

   1 //////////////////////////////////////////////////////////////////////
   2 ////                                                              ////
   3 ////  File name: pci_target_unit.v                                ////
   4 ////                                                              ////
   5 ////  This file is part of the "PCI bridge" project               ////
   6 ////  http://www.opencores.org/cores/pci/                         ////
   7 ////                                                              ////
   8 ////  Author(s):                                                  ////
   9 ////      - Tadej Markovic, tadej@opencores.org                   ////
  10 ////                                                              ////
  11 ////  All additional information is avaliable in the README.txt   ////
  12 ////  file.                                                       ////
  13 ////                                                              ////
  14 ////                                                              ////
  15 //////////////////////////////////////////////////////////////////////
  16 ////                                                              ////
  17 //// Copyright (C) 2000 Tadej Markovic, tadej@opencores.org       ////
  18 ////                                                              ////
  19 //// This source file may be used and distributed without         ////
  20 //// restriction provided that this copyright statement is not    ////
  21 //// removed from the file and that any derivative work contains  ////
  22 //// the original copyright notice and the associated disclaimer. ////
  23 ////                                                              ////
  24 //// This source file is free software; you can redistribute it   ////
  25 //// and/or modify it under the terms of the GNU Lesser General   ////
  26 //// Public License as published by the Free Software Foundation; ////
  27 //// either version 2.1 of the License, or (at your option) any   ////
  28 //// later version.                                               ////
  29 ////                                                              ////
  30 //// This source is distributed in the hope that it will be       ////
  31 //// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
  32 //// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
  33 //// PURPOSE.  See the GNU Lesser General Public License for more ////
  34 //// details.                                                     ////
  35 ////                                                              ////
  36 //// You should have received a copy of the GNU Lesser General    ////
  37 //// Public License along with this source; if not, download it   ////
  38 //// from http://www.opencores.org/lgpl.shtml                     ////
  39 ////                                                              ////
  40 //////////////////////////////////////////////////////////////////////
  41 //
  42 // CVS Revision History
  43 //
  44 // $Log: pci_target_unit.v,v $
  45 // Revision 1.1  2007-03-20 17:50:56  sithglan
  46 // add shit
  47 //
  48 // Revision 1.16  2004/08/19 15:27:34  mihad
  49 // Changed minimum pci image size to 256 bytes because
  50 // of some PC system problems with size of IO images.
  51 //
  52 // Revision 1.15  2003/12/19 11:11:30  mihad
  53 // Compact PCI Hot Swap support added.
  54 // New testcases added.
  55 // Specification updated.
  56 // Test application changed to support WB B3 cycles.
  57 //
  58 // Revision 1.14  2003/10/17 09:11:52  markom
  59 // mbist signals updated according to newest convention
  60 //
  61 // Revision 1.13  2003/08/21 20:55:14  tadejm
  62 // Corrected bug when writing to FIFO (now it is registered).
  63 //
  64 // Revision 1.12  2003/08/08 16:36:33  tadejm
  65 // Added 'three_left_out' to pci_pciw_fifo signaling three locations before full. Added comparison between current registered cbe and next unregistered cbe to signal wb_master whether it is allowed to performe burst or not. Due to this, I needed 'three_left_out' so that writing to pci_pciw_fifo can be registered, otherwise timing problems would occure.
  66 //
  67 // Revision 1.11  2003/01/27 16:49:31  mihad
  68 // Changed module and file names. Updated scripts accordingly. FIFO synchronizations changed.
  69 //
  70 // Revision 1.10  2002/10/18 03:36:37  tadejm
  71 // Changed wrong signal name mbist_sen into mbist_ctrl_i.
  72 //
  73 // Revision 1.9  2002/10/17 22:51:08  tadejm
  74 // Changed BIST signals for RAMs.
  75 //
  76 // Revision 1.8  2002/10/11 10:09:01  mihad
  77 // Added additional testcase and changed rst name in BIST to trst
  78 //
  79 // Revision 1.7  2002/10/08 17:17:05  mihad
  80 // Added BIST signals for RAMs.
  81 //
  82 // Revision 1.6  2002/09/25 15:53:52  mihad
  83 // Removed all logic from asynchronous reset network
  84 //
  85 // Revision 1.5  2002/03/05 11:53:47  mihad
  86 // Added some testcases, removed un-needed fifo signals
  87 //
  88 // Revision 1.4  2002/02/19 16:32:37  mihad
  89 // Modified testbench and fixed some bugs
  90 //
  91 // Revision 1.3  2002/02/01 15:25:13  mihad
  92 // Repaired a few bugs, updated specification, added test bench files and design document
  93 //
  94 // Revision 1.2  2001/10/05 08:14:30  mihad
  95 // Updated all files with inclusion of timescale file for simulation purposes.
  96 //
  97 // Revision 1.1.1.1  2001/10/02 15:33:47  mihad
  98 // New project directory structure
  99 //
 100 //
 101
 102 // Module instantiates and connects other modules lower in hierarcy
 103 // PCI target unit consists of modules that together form datapath
 104 // between external WISHBONE slaves and external PCI initiators
 105 `include "pci_constants.v"
 106
 107 // synopsys translate_off
 108 `include "timescale.v"
 109 // synopsys translate_on
 110
 111 module pci_target_unit
 112 (
 113     reset_in,
 114     wb_clock_in,
 115     pci_clock_in,
 116
 117     pciu_wbm_adr_o,
 118     pciu_wbm_dat_o,
 119     pciu_wbm_dat_i,
 120     pciu_wbm_cyc_o,
 121     pciu_wbm_stb_o,
 122     pciu_wbm_we_o,
 123     pciu_wbm_cti_o,
 124     pciu_wbm_bte_o,
 125     pciu_wbm_sel_o,
 126     pciu_wbm_ack_i,
 127     pciu_wbm_rty_i,
 128     pciu_wbm_err_i,
 129     pciu_mem_enable_in,
 130     pciu_io_enable_in,
 131     pciu_map_in,
 132     pciu_pref_en_in,
 133     pciu_conf_data_in,
 134     pciu_wbw_fifo_empty_in,
 135     pciu_wbu_del_read_comp_pending_in,
 136     pciu_wbu_frame_en_in,
 137     pciu_bar0_in,
 138     pciu_bar1_in,
 139     pciu_bar2_in,
 140     pciu_bar3_in,
 141     pciu_bar4_in,
 142     pciu_bar5_in,
 143     pciu_am0_in,
 144     pciu_am1_in,
 145     pciu_am2_in,
 146     pciu_am3_in,
 147     pciu_am4_in,
 148     pciu_am5_in,
 149     pciu_ta0_in,
 150     pciu_ta1_in,
 151     pciu_ta2_in,
 152     pciu_ta3_in,
 153     pciu_ta4_in,
 154     pciu_ta5_in,
 155     pciu_at_en_in,
 156     pciu_cache_line_size_in,
 157     pciu_cache_lsize_not_zero_in,
 158     pciu_pciif_frame_in,
 159     pciu_pciif_irdy_in,
 160     pciu_pciif_idsel_in,
 161     pciu_pciif_frame_reg_in,
 162     pciu_pciif_irdy_reg_in,
 163     pciu_pciif_idsel_reg_in,
 164     pciu_pciif_ad_reg_in,
 165     pciu_pciif_cbe_reg_in,
 166     pciu_pciif_cbe_in,
 167     pciu_pciif_bckp_trdy_en_in,
 168     pciu_pciif_bckp_devsel_in,
 169     pciu_pciif_bckp_trdy_in,
 170     pciu_pciif_bckp_stop_in,
 171     pciu_pciif_trdy_reg_in,
 172     pciu_pciif_stop_reg_in,
 173     pciu_pciif_trdy_out,
 174     pciu_pciif_stop_out,
 175     pciu_pciif_devsel_out,
 176     pciu_pciif_trdy_en_out,
 177     pciu_pciif_stop_en_out,
 178     pciu_pciif_devsel_en_out,
 179     pciu_ad_load_out,
 180     pciu_ad_load_on_transfer_out,
 181     pciu_pciif_ad_out,
 182     pciu_pciif_ad_en_out,
 183     pciu_pciif_tabort_set_out,
 184     pciu_err_addr_out,
 185     pciu_err_bc_out,
 186     pciu_err_data_out,
 187     pciu_err_be_out,
 188     pciu_err_signal_out,
 189     pciu_err_source_out,
 190     pciu_err_rty_exp_out,
 191     pciu_conf_offset_out,
 192     pciu_conf_renable_out,
 193     pciu_conf_wenable_out,
 194     pciu_conf_be_out,
 195     pciu_conf_data_out,
 196     pciu_pci_drcomp_pending_out,
 197     pciu_pciw_fifo_empty_out
 198
 199 `ifdef PCI_BIST
 200     ,
 201     // debug chain signals
 202     mbist_si_i,       // bist scan serial in
 203     mbist_so_o,       // bist scan serial out
 204     mbist_ctrl_i        // bist chain shift control
 205 `endif
 206 );
 207
 208 `ifdef HOST
 209     `ifdef NO_CNF_IMAGE
 210         parameter pci_ba0_width = `PCI_NUM_OF_DEC_ADDR_LINES ;
 211     `else
 212         parameter pci_ba0_width = 20    ;
 213     `endif
 214 `endif
 215
 216 `ifdef GUEST
 217     parameter pci_ba0_width = 20 ;
 218 `endif
 219
 220 parameter pci_ba1_5_width = `PCI_NUM_OF_DEC_ADDR_LINES ;
 221
 222 input reset_in,
 223       wb_clock_in,
 224       pci_clock_in ;
 225
 226 output  [31:0]  pciu_wbm_adr_o   ;
 227 output  [31:0]  pciu_wbm_dat_o ;
 228 input   [31:0]  pciu_wbm_dat_i ;
 229 output          pciu_wbm_cyc_o   ;
 230 output          pciu_wbm_stb_o   ;
 231 output          pciu_wbm_we_o    ;
 232 output  [2:0]   pciu_wbm_cti_o   ;
 233 output  [1:0]   pciu_wbm_bte_o   ;
 234 output  [3:0]   pciu_wbm_sel_o   ;
 235 input           pciu_wbm_ack_i   ;
 236 input           pciu_wbm_rty_i   ;
 237 input           pciu_wbm_err_i   ;
 238
 239 input           pciu_wbw_fifo_empty_in ;
 240 input                   pciu_wbu_del_read_comp_pending_in ;
 241 input           pciu_wbu_frame_en_in ;
 242
 243 input           pciu_mem_enable_in ;
 244 input           pciu_io_enable_in ;
 245 input   [5:0]   pciu_map_in ;
 246 input   [5:0]   pciu_pref_en_in ;
 247 input   [31:0]  pciu_conf_data_in ;
 248
 249 input   [pci_ba0_width   - 1:0] pciu_bar0_in ;
 250 input   [pci_ba1_5_width - 1:0] pciu_bar1_in ;
 251 input   [pci_ba1_5_width - 1:0] pciu_bar2_in ;
 252 input   [pci_ba1_5_width - 1:0] pciu_bar3_in ;
 253 input   [pci_ba1_5_width - 1:0] pciu_bar4_in ;
 254 input   [pci_ba1_5_width - 1:0] pciu_bar5_in ;
 255 input   [pci_ba1_5_width - 1:0] pciu_am0_in ;
 256 input   [pci_ba1_5_width - 1:0] pciu_am1_in ;
 257 input   [pci_ba1_5_width - 1:0] pciu_am2_in ;
 258 input   [pci_ba1_5_width - 1:0] pciu_am3_in ;
 259 input   [pci_ba1_5_width - 1:0] pciu_am4_in ;
 260 input   [pci_ba1_5_width - 1:0] pciu_am5_in ;
 261 input   [pci_ba1_5_width - 1:0] pciu_ta0_in ;
 262 input   [pci_ba1_5_width - 1:0] pciu_ta1_in ;
 263 input   [pci_ba1_5_width - 1:0] pciu_ta2_in ;
 264 input   [pci_ba1_5_width - 1:0] pciu_ta3_in ;
 265 input   [pci_ba1_5_width - 1:0] pciu_ta4_in ;
 266 input   [pci_ba1_5_width - 1:0] pciu_ta5_in ;
 267 input   [5:0]                   pciu_at_en_in ;
 268
 269 input   [7:0]   pciu_cache_line_size_in ;
 270 input           pciu_cache_lsize_not_zero_in ;
 271
 272 input           pciu_pciif_frame_in ;
 273 input           pciu_pciif_irdy_in ;
 274 input           pciu_pciif_idsel_in ;
 275 input           pciu_pciif_frame_reg_in ;
 276 input           pciu_pciif_irdy_reg_in ;
 277 input           pciu_pciif_idsel_reg_in ;
 278 input  [31:0]   pciu_pciif_ad_reg_in ;
 279 input   [3:0]   pciu_pciif_cbe_reg_in ;
 280 input   [3:0]   pciu_pciif_cbe_in;
 281 input           pciu_pciif_bckp_trdy_en_in ;
 282 input           pciu_pciif_bckp_devsel_in ;
 283 input           pciu_pciif_bckp_trdy_in ;
 284 input           pciu_pciif_bckp_stop_in ;
 285 input           pciu_pciif_trdy_reg_in ;
 286 input           pciu_pciif_stop_reg_in ;
 287
 288
 289 output          pciu_pciif_trdy_out ;
 290 output          pciu_pciif_stop_out ;
 291 output          pciu_pciif_devsel_out ;
 292 output          pciu_pciif_trdy_en_out ;
 293 output          pciu_pciif_stop_en_out ;
 294 output          pciu_pciif_devsel_en_out ;
 295 output          pciu_ad_load_out ;
 296 output          pciu_ad_load_on_transfer_out ;
 297 output [31:0]   pciu_pciif_ad_out ;
 298 output          pciu_pciif_ad_en_out ;
 299 output          pciu_pciif_tabort_set_out ;
 300
 301 output  [31:0]  pciu_err_addr_out ;
 302 output  [3:0]   pciu_err_bc_out ;
 303 output  [31:0]  pciu_err_data_out ;
 304 output  [3:0]   pciu_err_be_out ;
 305 output          pciu_err_signal_out ;
 306 output          pciu_err_source_out ;
 307 output          pciu_err_rty_exp_out ;
 308
 309 output  [11:0]  pciu_conf_offset_out ;
 310 output          pciu_conf_renable_out ;
 311 output          pciu_conf_wenable_out ;
 312 output  [3:0]   pciu_conf_be_out ;
 313 output  [31:0]  pciu_conf_data_out ;
 314
 315 output          pciu_pci_drcomp_pending_out ;
 316 output          pciu_pciw_fifo_empty_out ;
 317
 318 `ifdef PCI_BIST
 319 /*-----------------------------------------------------
 320 BIST debug chain port signals
 321 -----------------------------------------------------*/
 322 input   mbist_si_i;       // bist scan serial in
 323 output  mbist_so_o;       // bist scan serial out
 324 input [`PCI_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;       // bist chain shift control
 325 `endif
 326
 327
 328 // pci target state machine and interface outputs
 329 wire        pcit_sm_trdy_out ;
 330 wire        pcit_sm_stop_out ;
 331 wire        pcit_sm_devsel_out ;
 332 wire        pcit_sm_trdy_en_out ;
 333 wire        pcit_sm_stop_en_out ;
 334 wire        pcit_sm_devsel_en_out ;
 335 wire        pcit_sm_ad_load_out ;
 336 wire        pcit_sm_ad_load_on_transfer_out ;
 337 wire [31:0] pcit_sm_ad_out ;
 338 wire        pcit_sm_ad_en_out ;
 339 wire [31:0] pcit_sm_address_out ;
 340 wire  [3:0] pcit_sm_bc_out ;
 341 wire        pcit_sm_bc0_out ;
 342 wire [31:0] pcit_sm_data_out ;
 343 wire  [3:0] pcit_sm_be_out ;
 344 wire  [3:0] pcit_sm_next_be_out ;
 345 wire        pcit_sm_req_out ;
 346 wire        pcit_sm_rdy_out ;
 347 wire        pcit_sm_addr_phase_out ;
 348 wire            pcit_sm_bckp_devsel_out ;
 349 wire        pcit_sm_bckp_trdy_out ;
 350 wire            pcit_sm_bckp_stop_out ;
 351 wire        pcit_sm_last_reg_out ;
 352 wire        pcit_sm_frame_reg_out ;
 353 wire        pcit_sm_fetch_pcir_fifo_out ;
 354 wire        pcit_sm_load_medium_reg_out ;
 355 wire        pcit_sm_sel_fifo_mreg_out ;
 356 wire        pcit_sm_sel_conf_fifo_out ;
 357 wire        pcit_sm_load_to_pciw_fifo_out ;
 358 wire        pcit_sm_load_to_conf_out ;
 359
 360 wire        pcit_sm_target_abort_set_out ; // to conf space
 361
 362 assign  pciu_pciif_trdy_out             =   pcit_sm_trdy_out ;
 363 assign  pciu_pciif_stop_out             =   pcit_sm_stop_out ;
 364 assign  pciu_pciif_devsel_out           =   pcit_sm_devsel_out ;
 365 assign  pciu_pciif_trdy_en_out          =   pcit_sm_trdy_en_out ;
 366 assign  pciu_pciif_stop_en_out          =   pcit_sm_stop_en_out ;
 367 assign  pciu_pciif_devsel_en_out        =   pcit_sm_devsel_en_out ;
 368 assign  pciu_ad_load_out                =   pcit_sm_ad_load_out ;
 369 assign  pciu_ad_load_on_transfer_out    =   pcit_sm_ad_load_on_transfer_out ;
 370 assign  pciu_pciif_ad_out               =   pcit_sm_ad_out ;
 371 assign  pciu_pciif_ad_en_out            =   pcit_sm_ad_en_out ;
 372 assign  pciu_pciif_tabort_set_out       =   pcit_sm_target_abort_set_out ;
 373
 374 wire        pcit_if_addr_claim_out ;
 375 wire [31:0] pcit_if_data_out ;
 376 wire        pcit_if_same_read_out ;
 377 wire        pcit_if_norm_access_to_config_out ;
 378 wire        pcit_if_read_completed_out ;
 379 wire        pcit_if_read_processing_out ;
 380 wire        pcit_if_target_abort_out ;
 381 wire        pcit_if_disconect_wo_data_out ;
 382 wire            pcit_if_disconect_w_data_out ;
 383 wire        pcit_if_pciw_fifo_full_out ;
 384 wire        pcit_if_pcir_fifo_data_err_out ;
 385 wire        pcit_if_wbw_fifo_empty_out ;
 386 wire            pcit_if_wbu_del_read_comp_pending_out ;
 387 wire        pcit_if_req_out ;
 388 wire        pcit_if_done_out ;
 389 wire        pcit_if_in_progress_out ;
 390 wire [31:0] pcit_if_addr_out ;
 391 wire  [3:0] pcit_if_be_out ;
 392 wire        pcit_if_we_out ;
 393 wire  [3:0] pcit_if_bc_out ;
 394 wire        pcit_if_burst_ok_out ;
 395 wire        pcit_if_pcir_fifo_renable_out ;
 396 wire        pcit_if_pcir_fifo_flush_out ;
 397 wire        pcit_if_pciw_fifo_wenable_out ;
 398 wire [31:0] pcit_if_pciw_fifo_addr_data_out ;
 399 wire  [3:0] pcit_if_pciw_fifo_cbe_out ;
 400 wire  [3:0] pcit_if_pciw_fifo_control_out ;
 401 wire [11:0] pcit_if_conf_addr_out ;
 402 wire [31:0] pcit_if_conf_data_out ;
 403 wire  [3:0] pcit_if_conf_be_out ;
 404 wire        pcit_if_conf_we_out ;
 405 wire        pcit_if_conf_re_out ;
 406
 407 // pci target state machine outputs
 408 // pci interface signals
 409 assign  pciu_conf_offset_out    =   pcit_if_conf_addr_out ;
 410 assign  pciu_conf_renable_out   =   pcit_if_conf_re_out ;
 411 assign  pciu_conf_wenable_out   =   pcit_if_conf_we_out ;
 412 assign  pciu_conf_be_out        =   pcit_if_conf_be_out ;
 413 assign  pciu_conf_data_out      =   pcit_if_conf_data_out ;
 414
 415 // wishbone master state machine outputs
 416 wire        wbm_sm_wb_read_done ;
 417 wire            wbm_sm_write_attempt ;
 418 wire        wbm_sm_pcir_fifo_wenable_out ;
 419 wire [31:0] wbm_sm_pcir_fifo_data_out ;
 420 wire  [3:0] wbm_sm_pcir_fifo_be_out ;
 421 wire  [3:0] wbm_sm_pcir_fifo_control_out ;
 422 wire        wbm_sm_pciw_fifo_renable_out ;
 423 wire        wbm_sm_pci_error_sig_out ;
 424 wire  [3:0] wbm_sm_pci_error_bc ;
 425 wire        wbm_sm_write_rty_cnt_exp_out ;
 426 wire        wbm_sm_error_source_out ;
 427 wire        wbm_sm_read_rty_cnt_exp_out ;
 428 wire        wbm_sm_cyc_out ;
 429 wire        wbm_sm_stb_out ;
 430 wire        wbm_sm_we_out ;
 431 wire  [2:0] wbm_sm_cti_out ;
 432 wire  [1:0] wbm_sm_bte_out ;
 433 wire  [3:0] wbm_sm_sel_out ;
 434 wire [31:0] wbm_sm_adr_out ;
 435 wire [31:0] wbm_sm_mdata_out ;
 436
 437 assign  pciu_err_addr_out       =   wbm_sm_adr_out ;
 438 assign  pciu_err_bc_out         =   wbm_sm_pci_error_bc ;
 439 assign  pciu_err_data_out       =   wbm_sm_mdata_out ;
 440 assign  pciu_err_be_out         =   ~wbm_sm_sel_out ;
 441 assign  pciu_err_signal_out     =   wbm_sm_pci_error_sig_out ;
 442 assign  pciu_err_source_out     =   wbm_sm_error_source_out ;
 443 assign  pciu_err_rty_exp_out    =   wbm_sm_write_rty_cnt_exp_out ;
 444
 445 assign  pciu_wbm_adr_o       =   wbm_sm_adr_out ;
 446 assign  pciu_wbm_dat_o       =   wbm_sm_mdata_out ;
 447 assign  pciu_wbm_cyc_o       =   wbm_sm_cyc_out ;
 448 assign  pciu_wbm_stb_o       =   wbm_sm_stb_out ;
 449 assign  pciu_wbm_we_o        =   wbm_sm_we_out ;
 450 assign  pciu_wbm_cti_o       =   wbm_sm_cti_out ;
 451 assign  pciu_wbm_bte_o       =   wbm_sm_bte_out ;
 452 assign  pciu_wbm_sel_o       =   wbm_sm_sel_out ;
 453
 454 // pciw_pcir fifo outputs
 455
 456 // pciw_fifo_outputs:
 457 wire [31:0] fifos_pciw_addr_data_out ;
 458 wire [3:0]  fifos_pciw_cbe_out ;
 459 wire [3:0]  fifos_pciw_control_out ;
 460 wire        fifos_pciw_three_left_out ;
 461 wire        fifos_pciw_two_left_out ;
 462 wire        fifos_pciw_almost_full_out ;
 463 wire        fifos_pciw_full_out ;
 464 wire        fifos_pciw_almost_empty_out ;
 465 wire        fifos_pciw_empty_out ;
 466 wire        fifos_pciw_transaction_ready_out ;
 467
 468 assign  pciu_pciw_fifo_empty_out = !wbm_sm_write_attempt;
 469
 470 // pcir_fifo_outputs
 471 wire [31:0] fifos_pcir_data_out ;
 472 wire [3:0]  fifos_pcir_be_out ;
 473 wire [3:0]  fifos_pcir_control_out ;
 474 wire        fifos_pcir_almost_empty_out ;
 475 wire        fifos_pcir_empty_out ;
 476
 477 // delayed transaction logic outputs
 478 wire [31:0] del_sync_addr_out ;
 479 wire [3:0]  del_sync_be_out ;
 480 wire        del_sync_we_out ;
 481 wire        del_sync_comp_req_pending_out ;
 482 wire        del_sync_comp_comp_pending_out ;
 483 wire        del_sync_req_req_pending_out ;
 484 wire        del_sync_req_comp_pending_out ;
 485 wire [3:0]  del_sync_bc_out ;
 486 wire        del_sync_status_out ;
 487 wire        del_sync_comp_flush_out ;
 488 wire        del_sync_burst_out ;
 489
 490 assign  pciu_pci_drcomp_pending_out = del_sync_comp_comp_pending_out ;
 491
 492 // WISHBONE master interface inputs
 493 wire        wbm_sm_pci_tar_read_request             =   del_sync_comp_req_pending_out ;
 494 wire [31:0] wbm_sm_pci_tar_address                  =   del_sync_addr_out ;
 495 wire  [3:0] wbm_sm_pci_tar_cmd                      =   del_sync_bc_out ;
 496 wire  [3:0] wbm_sm_pci_tar_be                       =   del_sync_be_out ;
 497 wire        wbm_sm_pci_tar_burst_ok                 =   del_sync_burst_out ;
 498 wire  [7:0] wbm_sm_pci_cache_line_size              =   pciu_cache_line_size_in ;
 499 wire        wbm_sm_cache_lsize_not_zero_in          =   pciu_cache_lsize_not_zero_in ;
 500 wire [31:0] wbm_sm_pciw_fifo_addr_data_in           =   fifos_pciw_addr_data_out ;
 501 wire  [3:0] wbm_sm_pciw_fifo_cbe_in                 =   fifos_pciw_cbe_out ;
 502 wire  [3:0] wbm_sm_pciw_fifo_control_in             =   fifos_pciw_control_out ;
 503 wire        wbm_sm_pciw_fifo_almost_empty_in        =   fifos_pciw_almost_empty_out ;
 504 wire        wbm_sm_pciw_fifo_empty_in               =   fifos_pciw_empty_out ;
 505 wire        wbm_sm_pciw_fifo_transaction_ready_in   =   fifos_pciw_transaction_ready_out ;
 506 wire [31:0] wbm_sm_mdata_in                         =   pciu_wbm_dat_i ;
 507 wire        wbm_sm_ack_in                           =   pciu_wbm_ack_i ;
 508 wire        wbm_sm_rty_in                           =   pciu_wbm_rty_i ;
 509 wire        wbm_sm_err_in                           =   pciu_wbm_err_i ;
 510
 511 // WISHBONE master interface instantiation
 512 pci_wb_master wishbone_master
 513 (
 514     .wb_clock_in                    (wb_clock_in),
 515     .reset_in                       (reset_in),
 516     .pci_tar_read_request           (wbm_sm_pci_tar_read_request),  //in
 517     .pci_tar_address                (wbm_sm_pci_tar_address),       //in
 518     .pci_tar_cmd                    (wbm_sm_pci_tar_cmd),           //in
 519     .pci_tar_be                     (wbm_sm_pci_tar_be),            //in
 520     .pci_tar_burst_ok                           (wbm_sm_pci_tar_burst_ok),              //in
 521     .pci_cache_line_size            (wbm_sm_pci_cache_line_size),   //in
 522     .cache_lsize_not_zero           (wbm_sm_cache_lsize_not_zero_in),
 523     .wb_read_done_out               (wbm_sm_wb_read_done),          //out
 524     .w_attempt                                          (wbm_sm_write_attempt),                 //out
 525     .pcir_fifo_wenable_out          (wbm_sm_pcir_fifo_wenable_out),
 526     .pcir_fifo_data_out             (wbm_sm_pcir_fifo_data_out),
 527     .pcir_fifo_be_out               (wbm_sm_pcir_fifo_be_out),
 528     .pcir_fifo_control_out          (wbm_sm_pcir_fifo_control_out),
 529     .pciw_fifo_renable_out          (wbm_sm_pciw_fifo_renable_out),
 530     .pciw_fifo_addr_data_in         (wbm_sm_pciw_fifo_addr_data_in),
 531     .pciw_fifo_cbe_in               (wbm_sm_pciw_fifo_cbe_in),
 532     .pciw_fifo_control_in           (wbm_sm_pciw_fifo_control_in),
 533     .pciw_fifo_almost_empty_in      (wbm_sm_pciw_fifo_almost_empty_in),
 534     .pciw_fifo_empty_in             (wbm_sm_pciw_fifo_empty_in),
 535     .pciw_fifo_transaction_ready_in (wbm_sm_pciw_fifo_transaction_ready_in),
 536     .pci_error_sig_out              (wbm_sm_pci_error_sig_out),
 537     .pci_error_bc                   (wbm_sm_pci_error_bc),
 538     .write_rty_cnt_exp_out          (wbm_sm_write_rty_cnt_exp_out),
 539     .error_source_out               (wbm_sm_error_source_out),
 540     .read_rty_cnt_exp_out           (wbm_sm_read_rty_cnt_exp_out),
 541     .wb_cyc_o                      (wbm_sm_cyc_out),
 542     .wb_stb_o                      (wbm_sm_stb_out),
 543     .wb_we_o                       (wbm_sm_we_out),
 544     .wb_cti_o                      (wbm_sm_cti_out),
 545     .wb_bte_o                      (wbm_sm_bte_out),
 546     .wb_sel_o                      (wbm_sm_sel_out),
 547     .wb_adr_o                      (wbm_sm_adr_out),
 548     .wb_dat_i                      (wbm_sm_mdata_in),
 549     .wb_dat_o                      (wbm_sm_mdata_out),
 550     .wb_ack_i                      (wbm_sm_ack_in),
 551     .wb_rty_i                      (wbm_sm_rty_in),
 552     .wb_err_i                      (wbm_sm_err_in)
 553 );
 554
 555 // pciw_pcir_fifos inputs
 556 // PCIW_FIFO inputs
 557 wire        fifos_pciw_wenable_in       =   pcit_if_pciw_fifo_wenable_out ;
 558 wire [31:0] fifos_pciw_addr_data_in     =   pcit_if_pciw_fifo_addr_data_out ;
 559 wire [3:0]  fifos_pciw_cbe_in           =   pcit_if_pciw_fifo_cbe_out ;
 560 wire [3:0]  fifos_pciw_control_in       =   pcit_if_pciw_fifo_control_out ;
 561 wire        fifos_pciw_renable_in       =   wbm_sm_pciw_fifo_renable_out ;
 562 //wire        fifos_pciw_flush_in         =   1'b0 ;    // flush not used for write fifo
 563
 564 // PCIR_FIFO inputs
 565 wire        fifos_pcir_wenable_in       =   wbm_sm_pcir_fifo_wenable_out ;
 566 wire [31:0] fifos_pcir_data_in          =   wbm_sm_pcir_fifo_data_out ;
 567 wire [3:0]  fifos_pcir_be_in            =   wbm_sm_pcir_fifo_be_out ;
 568 wire [3:0]  fifos_pcir_control_in       =   wbm_sm_pcir_fifo_control_out ;
 569 wire        fifos_pcir_renable_in       =   pcit_if_pcir_fifo_renable_out ;
 570 wire        fifos_pcir_flush_in         =   pcit_if_pcir_fifo_flush_out ;
 571
 572 // PCIW_FIFO and PCIR_FIFO instantiation
 573 pci_pciw_pcir_fifos fifos
 574 (
 575     .wb_clock_in                (wb_clock_in),
 576     .pci_clock_in               (pci_clock_in),
 577     .reset_in                   (reset_in),
 578     .pciw_wenable_in            (fifos_pciw_wenable_in),      //for PCI Target !!!
 579     .pciw_addr_data_in          (fifos_pciw_addr_data_in),    //for PCI Target !!!
 580     .pciw_cbe_in                (fifos_pciw_cbe_in),          //for PCI Target !!!
 581     .pciw_control_in            (fifos_pciw_control_in),      //for PCI Target !!!
 582     .pciw_renable_in            (fifos_pciw_renable_in),
 583     .pciw_addr_data_out         (fifos_pciw_addr_data_out),
 584     .pciw_cbe_out               (fifos_pciw_cbe_out),
 585     .pciw_control_out           (fifos_pciw_control_out),
 586 //    .pciw_flush_in              (fifos_pciw_flush_in),      // flush not used for write fifo
 587     .pciw_three_left_out        (fifos_pciw_three_left_out),  //for PCI Target !!!
 588     .pciw_two_left_out          (fifos_pciw_two_left_out),    //for PCI Target !!!
 589     .pciw_almost_full_out       (fifos_pciw_almost_full_out), //for PCI Target !!!
 590     .pciw_full_out              (fifos_pciw_full_out),        //for PCI Target !!!
 591     .pciw_almost_empty_out      (fifos_pciw_almost_empty_out),
 592     .pciw_empty_out             (fifos_pciw_empty_out),
 593     .pciw_transaction_ready_out (fifos_pciw_transaction_ready_out),
 594     .pcir_wenable_in            (fifos_pcir_wenable_in),
 595     .pcir_data_in               (fifos_pcir_data_in),
 596     .pcir_be_in                 (fifos_pcir_be_in),
 597     .pcir_control_in            (fifos_pcir_control_in),
 598     .pcir_renable_in            (fifos_pcir_renable_in),      //for PCI Target !!!
 599     .pcir_data_out              (fifos_pcir_data_out),        //for PCI Target !!!
 600     .pcir_be_out                (fifos_pcir_be_out),          //for PCI Target !!!
 601     .pcir_control_out           (fifos_pcir_control_out),     //for PCI Target !!!
 602     .pcir_flush_in              (fifos_pcir_flush_in),        //for PCI Target !!!
 603     .pcir_full_out              (),
 604     .pcir_almost_empty_out      (fifos_pcir_almost_empty_out), //for PCI Target !!!
 605     .pcir_empty_out             (fifos_pcir_empty_out),        //for PCI Target !!!
 606     .pcir_transaction_ready_out ()
 607
 608 `ifdef PCI_BIST
 609     ,
 610     .mbist_si_i       (mbist_si_i),
 611     .mbist_so_o       (mbist_so_o),
 612     .mbist_ctrl_i       (mbist_ctrl_i)
 613 `endif
 614 ) ;
 615
 616 // delayed transaction logic inputs
 617 wire        del_sync_req_in             =   pcit_if_req_out ;
 618 wire        del_sync_comp_in            =   wbm_sm_wb_read_done ;
 619 wire        del_sync_done_in            =   pcit_if_done_out ;
 620 wire        del_sync_in_progress_in     =   pcit_if_in_progress_out ;
 621 wire [31:0] del_sync_addr_in            =   pcit_if_addr_out ;
 622 wire  [3:0] del_sync_be_in              =   pcit_if_be_out ;
 623 wire        del_sync_we_in              =   pcit_if_we_out ;
 624 wire  [3:0] del_sync_bc_in              =   pcit_if_bc_out ;
 625 wire        del_sync_status_in          =   1'b0 ;
 626 wire        del_sync_burst_in           =   pcit_if_burst_ok_out ;
 627 wire        del_sync_retry_expired_in   =   wbm_sm_read_rty_cnt_exp_out ;
 628
 629 // delayed transaction logic instantiation
 630 pci_delayed_sync del_sync
 631 (
 632     .reset_in               (reset_in),
 633     .req_clk_in             (pci_clock_in),
 634     .comp_clk_in            (wb_clock_in),
 635     .req_in                 (del_sync_req_in),
 636     .comp_in                (del_sync_comp_in),
 637     .done_in                (del_sync_done_in),
 638     .in_progress_in         (del_sync_in_progress_in),
 639     .comp_req_pending_out   (del_sync_comp_req_pending_out),
 640     .comp_comp_pending_out  (del_sync_comp_comp_pending_out),
 641     .req_req_pending_out    (del_sync_req_req_pending_out),
 642     .req_comp_pending_out   (del_sync_req_comp_pending_out),
 643     .addr_in                (del_sync_addr_in),
 644     .be_in                  (del_sync_be_in),
 645     .addr_out               (del_sync_addr_out),
 646     .be_out                 (del_sync_be_out),
 647     .we_in                  (del_sync_we_in),
 648     .we_out                 (del_sync_we_out),
 649     .bc_in                  (del_sync_bc_in),
 650     .bc_out                 (del_sync_bc_out),
 651     .status_in              (del_sync_status_in),
 652     .status_out             (del_sync_status_out),
 653     .comp_flush_out         (del_sync_comp_flush_out),
 654     .burst_in               (del_sync_burst_in),
 655     .burst_out              (del_sync_burst_out),
 656     .retry_expired_in       (del_sync_retry_expired_in)
 657 );
 658
 659 // pci target interface inputs
 660 wire [31:0] pcit_if_address_in                      =   pcit_sm_address_out ;
 661 wire  [3:0] pcit_if_bc_in                           =   pcit_sm_bc_out ;
 662 wire        pcit_if_bc0_in                          =   pcit_sm_bc0_out ;
 663 wire [31:0] pcit_if_data_in                         =   pcit_sm_data_out ;
 664 wire  [3:0] pcit_if_be_in                           =   pcit_sm_be_out ;
 665 wire  [3:0] pcit_if_next_be_in                      =   pcit_sm_next_be_out ;
 666 wire        pcit_if_req_in                          =   pcit_sm_req_out ;
 667 wire        pcit_if_rdy_in                          =   pcit_sm_rdy_out ;
 668 wire        pcit_if_addr_phase_in                   =   pcit_sm_addr_phase_out ;
 669 wire            pcit_if_bckp_devsel_in                                  =       pcit_sm_bckp_devsel_out ;
 670 wire        pcit_if_bckp_trdy_in                    =   pcit_sm_bckp_trdy_out ;
 671 wire            pcit_if_bckp_stop_in                                    =       pcit_sm_bckp_stop_out ;
 672 wire        pcit_if_last_reg_in                     =   pcit_sm_last_reg_out ;
 673 wire        pcit_if_frame_reg_in                    =   pcit_sm_frame_reg_out ;
 674 wire        pcit_if_fetch_pcir_fifo_in              =   pcit_sm_fetch_pcir_fifo_out ;
 675 wire        pcit_if_load_medium_reg_in              =   pcit_sm_load_medium_reg_out ;
 676 wire        pcit_if_sel_fifo_mreg_in                =   pcit_sm_sel_fifo_mreg_out ;
 677 wire        pcit_if_sel_conf_fifo_in                =   pcit_sm_sel_conf_fifo_out ;
 678 wire        pcit_if_load_to_pciw_fifo_in            =   pcit_sm_load_to_pciw_fifo_out ;
 679 wire        pcit_if_load_to_conf_in                 =   pcit_sm_load_to_conf_out ;
 680 wire        pcit_if_req_req_pending_in              =   del_sync_req_req_pending_out ;
 681 wire        pcit_if_req_comp_pending_in             =   del_sync_req_comp_pending_out ;
 682 wire        pcit_if_status_in                       =   del_sync_status_out ;
 683 wire [31:0] pcit_if_strd_addr_in                    =   del_sync_addr_out ;
 684 wire  [3:0] pcit_if_strd_bc_in                      =   del_sync_bc_out ;
 685 wire        pcit_if_comp_flush_in                   =   del_sync_comp_flush_out ;
 686 wire [31:0] pcit_if_pcir_fifo_data_in               =   fifos_pcir_data_out ;
 687 wire  [3:0] pcit_if_pcir_fifo_be_in                 =   fifos_pcir_be_out ;
 688 wire  [3:0] pcit_if_pcir_fifo_control_in            =   fifos_pcir_control_out ;
 689 wire        pcit_if_pcir_fifo_almost_empty_in       =   fifos_pcir_almost_empty_out ;
 690 wire        pcit_if_pcir_fifo_empty_in              =   fifos_pcir_empty_out ;
 691 wire        pcit_if_pciw_fifo_three_left_in         =   fifos_pciw_three_left_out ;
 692 wire        pcit_if_pciw_fifo_two_left_in           =   fifos_pciw_two_left_out ;
 693 wire        pcit_if_pciw_fifo_almost_full_in        =   fifos_pciw_almost_full_out ;
 694 wire        pcit_if_pciw_fifo_full_in               =   fifos_pciw_full_out ;
 695 wire        pcit_if_wbw_fifo_empty_in               =   pciu_wbw_fifo_empty_in ;
 696 wire            pcit_if_wbu_del_read_comp_pending_in    =       pciu_wbu_del_read_comp_pending_in ;
 697 wire [31:0] pcit_if_conf_data_in                    =   pciu_conf_data_in ;
 698 wire        pcit_if_mem_enable_in                   =   pciu_mem_enable_in ;
 699 wire        pcit_if_io_enable_in                    =   pciu_io_enable_in ;
 700 wire        pcit_if_mem_io_addr_space0_in           =   pciu_map_in[0] ;
 701 wire        pcit_if_mem_io_addr_space1_in           =   pciu_map_in[1] ;
 702 wire        pcit_if_mem_io_addr_space2_in           =   pciu_map_in[2] ;
 703 wire        pcit_if_mem_io_addr_space3_in           =   pciu_map_in[3] ;
 704 wire        pcit_if_mem_io_addr_space4_in           =   pciu_map_in[4] ;
 705 wire        pcit_if_mem_io_addr_space5_in           =   pciu_map_in[5] ;
 706 wire        pcit_if_pre_fetch_en0_in                =   pciu_pref_en_in[0] ;
 707 wire        pcit_if_pre_fetch_en1_in                =   pciu_pref_en_in[1] ;
 708 wire        pcit_if_pre_fetch_en2_in                =   pciu_pref_en_in[2] ;
 709 wire        pcit_if_pre_fetch_en3_in                =   pciu_pref_en_in[3] ;
 710 wire        pcit_if_pre_fetch_en4_in                =   pciu_pref_en_in[4] ;
 711 wire        pcit_if_pre_fetch_en5_in                =   pciu_pref_en_in[5] ;
 712 wire [(pci_ba0_width   - 1):0] pcit_if_pci_base_addr0_in =   pciu_bar0_in ;
 713 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_base_addr1_in =   pciu_bar1_in ;
 714 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_base_addr2_in =   pciu_bar2_in ;
 715 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_base_addr3_in =   pciu_bar3_in ;
 716 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_base_addr4_in =   pciu_bar4_in ;
 717 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_base_addr5_in =   pciu_bar5_in ;
 718 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_addr_mask0_in =   pciu_am0_in ;
 719 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_addr_mask1_in =   pciu_am1_in ;
 720 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_addr_mask2_in =   pciu_am2_in ;
 721 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_addr_mask3_in =   pciu_am3_in ;
 722 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_addr_mask4_in =   pciu_am4_in ;
 723 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_addr_mask5_in =   pciu_am5_in ;
 724 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_tran_addr0_in =   pciu_ta0_in ;
 725 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_tran_addr1_in =   pciu_ta1_in ;
 726 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_tran_addr2_in =   pciu_ta2_in ;
 727 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_tran_addr3_in =   pciu_ta3_in ;
 728 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_tran_addr4_in =   pciu_ta4_in ;
 729 wire [(pci_ba1_5_width - 1):0] pcit_if_pci_tran_addr5_in =   pciu_ta5_in ;
 730 wire        pcit_if_addr_tran_en0_in                =   pciu_at_en_in[0] ;
 731 wire        pcit_if_addr_tran_en1_in                =   pciu_at_en_in[1] ;
 732 wire        pcit_if_addr_tran_en2_in                =   pciu_at_en_in[2] ;
 733 wire        pcit_if_addr_tran_en3_in                =   pciu_at_en_in[3] ;
 734 wire        pcit_if_addr_tran_en4_in                =   pciu_at_en_in[4] ;
 735 wire        pcit_if_addr_tran_en5_in                =   pciu_at_en_in[5] ;
 736
 737 pci_target32_interface pci_target_if
 738 (
 739     .clk_in                         (pci_clock_in),
 740     .reset_in                       (reset_in),
 741     .address_in                     (pcit_if_address_in),
 742     .addr_claim_out                 (pcit_if_addr_claim_out),
 743     .bc_in                          (pcit_if_bc_in),
 744     .bc0_in                         (pcit_if_bc0_in),
 745     .data_in                        (pcit_if_data_in),
 746     .data_out                       (pcit_if_data_out),
 747     .be_in                          (pcit_if_be_in),
 748     .next_be_in                     (pcit_if_next_be_in),
 749     .req_in                         (pcit_if_req_in),
 750     .rdy_in                         (pcit_if_rdy_in),
 751     .addr_phase_in                  (pcit_if_addr_phase_in),
 752     .bckp_devsel_in                 (pcit_if_bckp_devsel_in),
 753     .bckp_trdy_in                   (pcit_if_bckp_trdy_in),
 754     .bckp_stop_in                   (pcit_if_bckp_stop_in),
 755     .last_reg_in                    (pcit_if_last_reg_in),
 756     .frame_reg_in                   (pcit_if_frame_reg_in),
 757     .fetch_pcir_fifo_in             (pcit_if_fetch_pcir_fifo_in),
 758     .load_medium_reg_in             (pcit_if_load_medium_reg_in),
 759     .sel_fifo_mreg_in               (pcit_if_sel_fifo_mreg_in),
 760     .sel_conf_fifo_in               (pcit_if_sel_conf_fifo_in),
 761     .load_to_pciw_fifo_in           (pcit_if_load_to_pciw_fifo_in),
 762     .load_to_conf_in                (pcit_if_load_to_conf_in),
 763     .same_read_out                  (pcit_if_same_read_out),
 764     .norm_access_to_config_out      (pcit_if_norm_access_to_config_out),
 765     .read_completed_out             (pcit_if_read_completed_out),
 766     .read_processing_out            (pcit_if_read_processing_out),
 767     .target_abort_out               (pcit_if_target_abort_out),
 768     .disconect_wo_data_out          (pcit_if_disconect_wo_data_out),
 769     .disconect_w_data_out                       (pcit_if_disconect_w_data_out),
 770     .pciw_fifo_full_out             (pcit_if_pciw_fifo_full_out),
 771     .pcir_fifo_data_err_out         (pcit_if_pcir_fifo_data_err_out),
 772     .wbw_fifo_empty_out             (pcit_if_wbw_fifo_empty_out),
 773     .wbu_del_read_comp_pending_out      (pcit_if_wbu_del_read_comp_pending_out),
 774     .req_out                        (pcit_if_req_out),
 775     .done_out                       (pcit_if_done_out),
 776     .in_progress_out                (pcit_if_in_progress_out),
 777     .req_req_pending_in             (pcit_if_req_req_pending_in),
 778     .req_comp_pending_in            (pcit_if_req_comp_pending_in),
 779     .addr_out                       (pcit_if_addr_out),
 780     .be_out                         (pcit_if_be_out),
 781     .we_out                         (pcit_if_we_out),
 782     .bc_out                         (pcit_if_bc_out),
 783     .burst_ok_out                   (pcit_if_burst_ok_out),
 784     .strd_addr_in                   (pcit_if_strd_addr_in),
 785     .strd_bc_in                     (pcit_if_strd_bc_in),
 786     .status_in                      (pcit_if_status_in),
 787     .comp_flush_in                  (pcit_if_comp_flush_in),
 788     .pcir_fifo_renable_out          (pcit_if_pcir_fifo_renable_out),
 789     .pcir_fifo_data_in              (pcit_if_pcir_fifo_data_in),
 790     .pcir_fifo_be_in                (pcit_if_pcir_fifo_be_in),
 791     .pcir_fifo_control_in           (pcit_if_pcir_fifo_control_in),
 792     .pcir_fifo_flush_out            (pcit_if_pcir_fifo_flush_out),
 793     .pcir_fifo_almost_empty_in      (pcit_if_pcir_fifo_almost_empty_in),
 794     .pcir_fifo_empty_in             (pcit_if_pcir_fifo_empty_in),
 795     .pciw_fifo_wenable_out          (pcit_if_pciw_fifo_wenable_out),
 796     .pciw_fifo_addr_data_out        (pcit_if_pciw_fifo_addr_data_out),
 797     .pciw_fifo_cbe_out              (pcit_if_pciw_fifo_cbe_out),
 798     .pciw_fifo_control_out          (pcit_if_pciw_fifo_control_out),
 799     .pciw_fifo_three_left_in        (pcit_if_pciw_fifo_three_left_in),
 800     .pciw_fifo_two_left_in          (pcit_if_pciw_fifo_two_left_in),
 801     .pciw_fifo_almost_full_in       (pcit_if_pciw_fifo_almost_full_in),
 802     .pciw_fifo_full_in              (pcit_if_pciw_fifo_full_in),
 803     .wbw_fifo_empty_in              (pcit_if_wbw_fifo_empty_in),
 804     .wbu_del_read_comp_pending_in       (pcit_if_wbu_del_read_comp_pending_in),
 805     .conf_addr_out                  (pcit_if_conf_addr_out),
 806     .conf_data_out                  (pcit_if_conf_data_out),
 807     .conf_data_in                   (pcit_if_conf_data_in),
 808     .conf_be_out                    (pcit_if_conf_be_out),
 809     .conf_we_out                    (pcit_if_conf_we_out),
 810     .conf_re_out                    (pcit_if_conf_re_out),
 811     .mem_enable_in                  (pcit_if_mem_enable_in),
 812     .io_enable_in                   (pcit_if_io_enable_in),
 813     .mem_io_addr_space0_in          (pcit_if_mem_io_addr_space0_in),
 814     .mem_io_addr_space1_in          (pcit_if_mem_io_addr_space1_in),
 815     .mem_io_addr_space2_in          (pcit_if_mem_io_addr_space2_in),
 816     .mem_io_addr_space3_in          (pcit_if_mem_io_addr_space3_in),
 817     .mem_io_addr_space4_in          (pcit_if_mem_io_addr_space4_in),
 818     .mem_io_addr_space5_in          (pcit_if_mem_io_addr_space5_in),
 819     .pre_fetch_en0_in               (pcit_if_pre_fetch_en0_in),
 820     .pre_fetch_en1_in               (pcit_if_pre_fetch_en1_in),
 821     .pre_fetch_en2_in               (pcit_if_pre_fetch_en2_in),
 822     .pre_fetch_en3_in               (pcit_if_pre_fetch_en3_in),
 823     .pre_fetch_en4_in               (pcit_if_pre_fetch_en4_in),
 824     .pre_fetch_en5_in               (pcit_if_pre_fetch_en5_in),
 825     .pci_base_addr0_in              (pcit_if_pci_base_addr0_in),
 826     .pci_base_addr1_in              (pcit_if_pci_base_addr1_in),
 827     .pci_base_addr2_in              (pcit_if_pci_base_addr2_in),
 828     .pci_base_addr3_in              (pcit_if_pci_base_addr3_in),
 829     .pci_base_addr4_in              (pcit_if_pci_base_addr4_in),
 830     .pci_base_addr5_in              (pcit_if_pci_base_addr5_in),
 831     .pci_addr_mask0_in              (pcit_if_pci_addr_mask0_in),
 832     .pci_addr_mask1_in              (pcit_if_pci_addr_mask1_in),
 833     .pci_addr_mask2_in              (pcit_if_pci_addr_mask2_in),
 834     .pci_addr_mask3_in              (pcit_if_pci_addr_mask3_in),
 835     .pci_addr_mask4_in              (pcit_if_pci_addr_mask4_in),
 836     .pci_addr_mask5_in              (pcit_if_pci_addr_mask5_in),
 837     .pci_tran_addr0_in              (pcit_if_pci_tran_addr0_in),
 838     .pci_tran_addr1_in              (pcit_if_pci_tran_addr1_in),
 839     .pci_tran_addr2_in              (pcit_if_pci_tran_addr2_in),
 840     .pci_tran_addr3_in              (pcit_if_pci_tran_addr3_in),
 841     .pci_tran_addr4_in              (pcit_if_pci_tran_addr4_in),
 842     .pci_tran_addr5_in              (pcit_if_pci_tran_addr5_in),
 843     .addr_tran_en0_in               (pcit_if_addr_tran_en0_in),
 844     .addr_tran_en1_in               (pcit_if_addr_tran_en1_in),
 845     .addr_tran_en2_in               (pcit_if_addr_tran_en2_in),
 846     .addr_tran_en3_in               (pcit_if_addr_tran_en3_in),
 847     .addr_tran_en4_in               (pcit_if_addr_tran_en4_in),
 848     .addr_tran_en5_in               (pcit_if_addr_tran_en5_in)
 849 ) ;
 850
 851 // pci target state machine inputs
 852 wire        pcit_sm_frame_in                    =   pciu_pciif_frame_in ;
 853 wire        pcit_sm_irdy_in                     =   pciu_pciif_irdy_in ;
 854 wire        pcit_sm_idsel_in                    =   pciu_pciif_idsel_in ;
 855 wire        pcit_sm_frame_reg_in                =   pciu_pciif_frame_reg_in ;
 856 wire        pcit_sm_irdy_reg_in                 =   pciu_pciif_irdy_reg_in ;
 857 wire        pcit_sm_idsel_reg_in                =   pciu_pciif_idsel_reg_in ;
 858 wire [31:0] pcit_sm_ad_reg_in                   =   pciu_pciif_ad_reg_in ;
 859 wire  [3:0] pcit_sm_cbe_reg_in                  =   pciu_pciif_cbe_reg_in ;
 860 wire  [3:0] pcit_sm_cbe_in                      =   pciu_pciif_cbe_in ;
 861 wire        pcit_sm_bckp_trdy_en_in             =   pciu_pciif_bckp_trdy_en_in ;
 862 wire        pcit_sm_bckp_devsel_in              =   pciu_pciif_bckp_devsel_in ;
 863 wire        pcit_sm_bckp_trdy_in                =   pciu_pciif_bckp_trdy_in ;
 864 wire        pcit_sm_bckp_stop_in                =   pciu_pciif_bckp_stop_in ;
 865 wire        pcit_sm_addr_claim_in               =   pcit_if_addr_claim_out ;
 866 wire [31:0] pcit_sm_data_in                     =   pcit_if_data_out ;
 867 wire        pcit_sm_same_read_in                =   pcit_if_same_read_out ;
 868 wire        pcit_sm_norm_access_to_config_in    =   pcit_if_norm_access_to_config_out ;
 869 wire        pcit_sm_read_completed_in           =   pcit_if_read_completed_out ;
 870 wire        pcit_sm_read_processing_in          =   pcit_if_read_processing_out ;
 871 wire        pcit_sm_target_abort_in             =   pcit_if_target_abort_out ;
 872 wire        pcit_sm_disconect_wo_data_in        =   pcit_if_disconect_wo_data_out ;
 873 wire            pcit_sm_disconect_w_data_in                     =       pcit_if_disconect_w_data_out ;
 874 wire        pcit_sm_pciw_fifo_full_in           =   pcit_if_pciw_fifo_full_out ;
 875 wire        pcit_sm_pcir_fifo_data_err_in       =   pcit_if_pcir_fifo_data_err_out ;
 876 wire        pcit_sm_wbw_fifo_empty_in           =   pcit_if_wbw_fifo_empty_out ;
 877 wire            pcit_sm_wbu_del_read_comp_pending_in    =       pcit_if_wbu_del_read_comp_pending_out ;
 878 wire        pcit_sm_wbu_frame_en_in             =   pciu_wbu_frame_en_in ;
 879 wire        pcit_sm_trdy_reg_in                 =   pciu_pciif_trdy_reg_in ;
 880 wire        pcit_sm_stop_reg_in                 =   pciu_pciif_stop_reg_in ;
 881
 882
 883 pci_target32_sm pci_target_sm
 884 (
 885     .clk_in                             (pci_clock_in),
 886     .reset_in                           (reset_in),
 887     .pci_frame_in                       (pcit_sm_frame_in),
 888     .pci_irdy_in                        (pcit_sm_irdy_in),
 889     .pci_idsel_in                       (pcit_sm_idsel_in),
 890     .pci_frame_reg_in                   (pcit_sm_frame_reg_in),
 891     .pci_irdy_reg_in                    (pcit_sm_irdy_reg_in),
 892     .pci_idsel_reg_in                   (pcit_sm_idsel_reg_in),
 893     .pci_trdy_out                       (pcit_sm_trdy_out),
 894     .pci_stop_out                       (pcit_sm_stop_out),
 895     .pci_devsel_out                     (pcit_sm_devsel_out),
 896     .pci_trdy_en_out                    (pcit_sm_trdy_en_out),
 897     .pci_stop_en_out                    (pcit_sm_stop_en_out),
 898     .pci_devsel_en_out                  (pcit_sm_devsel_en_out),
 899     .ad_load_out                        (pcit_sm_ad_load_out),
 900     .ad_load_on_transfer_out            (pcit_sm_ad_load_on_transfer_out),
 901     .pci_ad_reg_in                      (pcit_sm_ad_reg_in),
 902     .pci_ad_out                         (pcit_sm_ad_out),
 903     .pci_ad_en_out                      (pcit_sm_ad_en_out),
 904     .pci_cbe_reg_in                     (pcit_sm_cbe_reg_in),
 905     .pci_cbe_in                         (pcit_sm_cbe_in),
 906     .bckp_trdy_en_in                    (pcit_sm_bckp_trdy_en_in),
 907     .bckp_devsel_in                     (pcit_sm_bckp_devsel_in),
 908     .bckp_trdy_in                       (pcit_sm_bckp_trdy_in),
 909     .bckp_stop_in                       (pcit_sm_bckp_stop_in),
 910     .pci_trdy_reg_in                    (pcit_sm_trdy_reg_in),
 911     .pci_stop_reg_in                    (pcit_sm_stop_reg_in),
 912     .address_out                        (pcit_sm_address_out),
 913     .addr_claim_in                      (pcit_sm_addr_claim_in),
 914     .bc_out                             (pcit_sm_bc_out),
 915     .bc0_out                            (pcit_sm_bc0_out),
 916     .data_out                           (pcit_sm_data_out),
 917     .data_in                            (pcit_sm_data_in),
 918     .be_out                             (pcit_sm_be_out),
 919     .next_be_out                        (pcit_sm_next_be_out),
 920     .req_out                            (pcit_sm_req_out),
 921     .rdy_out                            (pcit_sm_rdy_out),
 922     .addr_phase_out                     (pcit_sm_addr_phase_out),
 923     .bckp_devsel_out                                    (pcit_sm_bckp_devsel_out),
 924     .bckp_trdy_out                      (pcit_sm_bckp_trdy_out),
 925     .bckp_stop_out                                              (pcit_sm_bckp_stop_out),
 926     .last_reg_out                       (pcit_sm_last_reg_out),
 927     .frame_reg_out                      (pcit_sm_frame_reg_out),
 928     .fetch_pcir_fifo_out                (pcit_sm_fetch_pcir_fifo_out),
 929     .load_medium_reg_out                (pcit_sm_load_medium_reg_out),
 930     .sel_fifo_mreg_out                  (pcit_sm_sel_fifo_mreg_out),
 931     .sel_conf_fifo_out                  (pcit_sm_sel_conf_fifo_out),
 932     .load_to_pciw_fifo_out              (pcit_sm_load_to_pciw_fifo_out),
 933     .load_to_conf_out                   (pcit_sm_load_to_conf_out),
 934     .same_read_in                       (pcit_sm_same_read_in),
 935     .norm_access_to_config_in           (pcit_sm_norm_access_to_config_in),
 936     .read_completed_in                  (pcit_sm_read_completed_in),
 937     .read_processing_in                 (pcit_sm_read_processing_in),
 938     .target_abort_in                    (pcit_sm_target_abort_in),
 939     .disconect_wo_data_in               (pcit_sm_disconect_wo_data_in),
 940     .disconect_w_data_in                                (pcit_sm_disconect_w_data_in),
 941     .target_abort_set_out               (pcit_sm_target_abort_set_out),
 942     .pciw_fifo_full_in                  (pcit_sm_pciw_fifo_full_in),
 943     .pcir_fifo_data_err_in              (pcit_sm_pcir_fifo_data_err_in),
 944     .wbw_fifo_empty_in                  (pcit_sm_wbw_fifo_empty_in),
 945     .wbu_del_read_comp_pending_in               (pcit_sm_wbu_del_read_comp_pending_in),
 946     .wbu_frame_en_in                    (pcit_sm_wbu_frame_en_in)
 947 ) ;
 948
 949 endmodule