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

   1 //////////////////////////////////////////////////////////////////////
   2 ////                                                              ////
   3 ////  File name "pci_io_mux.v"                                    ////
   4 ////                                                              ////
   5 ////  This file is part of the "PCI bridge" project               ////
   6 ////  http://www.opencores.org/cores/pci/                         ////
   7 ////                                                              ////
   8 ////  Author(s):                                                  ////
   9 ////      - Miha Dolenc (mihad@opencores.org)                     ////
  10 ////                                                              ////
  11 ////  All additional information is avaliable in the README       ////
  12 ////  file.                                                       ////
  13 ////                                                              ////
  14 ////                                                              ////
  15 //////////////////////////////////////////////////////////////////////
  16 ////                                                              ////
  17 //// Copyright (C) 2001 Miha Dolenc, mihad@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_io_mux.v,v $
  45 // Revision 1.1  2007-03-20 17:50:56  sithglan
  46 // add shit
  47 //
  48 // Revision 1.5  2003/12/19 11:11:30  mihad
  49 // Compact PCI Hot Swap support added.
  50 // New testcases added.
  51 // Specification updated.
  52 // Test application changed to support WB B3 cycles.
  53 //
  54 // Revision 1.4  2003/01/27 16:49:31  mihad
  55 // Changed module and file names. Updated scripts accordingly. FIFO synchronizations changed.
  56 //
  57 // Revision 1.3  2002/02/01 15:25:12  mihad
  58 // Repaired a few bugs, updated specification, added test bench files and design document
  59 //
  60 // Revision 1.2  2001/10/05 08:14:29  mihad
  61 // Updated all files with inclusion of timescale file for simulation purposes.
  62 //
  63 // Revision 1.1.1.1  2001/10/02 15:33:46  mihad
  64 // New project directory structure
  65 //
  66 //
  67
  68 // this module instantiates output flip flops for PCI interface and
  69 // some fanout downsizing logic because of heavily constrained PCI signals
  70
  71 // synopsys translate_off
  72 `include "timescale.v"
  73 // synopsys translate_on
  74
  75 module pci_io_mux
  76 (
  77     reset_in,
  78     clk_in,
  79     frame_in,
  80     frame_en_in,
  81     frame_load_in,
  82     irdy_in,
  83     irdy_en_in,
  84     devsel_in,
  85     devsel_en_in,
  86     trdy_in,
  87     trdy_en_in,
  88     stop_in,
  89     stop_en_in,
  90     master_load_in,
  91     master_load_on_transfer_in,
  92     target_load_in,
  93     target_load_on_transfer_in,
  94     cbe_in,
  95     cbe_en_in,
  96     mas_ad_in,
  97     tar_ad_in,
  98
  99     par_in,
 100     par_en_in,
 101     perr_in,
 102     perr_en_in,
 103     serr_in,
 104     serr_en_in,
 105
 106     req_in,
 107
 108     mas_ad_en_in,
 109     tar_ad_en_in,
 110     tar_ad_en_reg_in,
 111
 112     ad_en_out,
 113     frame_en_out,
 114     irdy_en_out,
 115     devsel_en_out,
 116     trdy_en_out,
 117     stop_en_out,
 118     cbe_en_out,
 119
 120     frame_out,
 121     irdy_out,
 122     devsel_out,
 123     trdy_out,
 124     stop_out,
 125     cbe_out,
 126     ad_out,
 127     ad_load_out,
 128     ad_en_unregistered_out,
 129
 130     par_out,
 131     par_en_out,
 132     perr_out,
 133     perr_en_out,
 134     serr_out,
 135     serr_en_out,
 136
 137     req_out,
 138     req_en_out,
 139     pci_trdy_in,
 140     pci_irdy_in,
 141     pci_frame_in,
 142     pci_stop_in,
 143
 144     init_complete_in
 145 );
 146
 147 input reset_in, clk_in ;
 148
 149 input           frame_in ;
 150 input           frame_en_in ;
 151 input           frame_load_in ;
 152 input           irdy_in ;
 153 input           irdy_en_in ;
 154 input           devsel_in ;
 155 input           devsel_en_in ;
 156 input           trdy_in ;
 157 input           trdy_en_in ;
 158 input           stop_in ;
 159 input           stop_en_in ;
 160 input           master_load_in ;
 161 input           target_load_in ;
 162
 163 input [3:0]     cbe_in ;
 164 input           cbe_en_in ;
 165 input [31:0]    mas_ad_in ;
 166 input [31:0]    tar_ad_in ;
 167
 168 input           mas_ad_en_in ;
 169 input           tar_ad_en_in ;
 170 input           tar_ad_en_reg_in ;
 171
 172 input par_in ;
 173 input par_en_in ;
 174 input perr_in ;
 175 input perr_en_in ;
 176 input serr_in ;
 177 input serr_en_in ;
 178
 179 output          frame_en_out ;
 180 output          irdy_en_out ;
 181 output          devsel_en_out ;
 182 output          trdy_en_out ;
 183 output          stop_en_out ;
 184 output [31:0]   ad_en_out ;
 185 output [3:0]    cbe_en_out ;
 186
 187 output          frame_out ;
 188 output          irdy_out ;
 189 output          devsel_out ;
 190 output          trdy_out ;
 191 output          stop_out ;
 192 output [3:0]    cbe_out ;
 193 output [31:0]   ad_out ;
 194 output          ad_load_out ;
 195 output          ad_en_unregistered_out ;
 196
 197 output          par_out ;
 198 output          par_en_out ;
 199 output          perr_out ;
 200 output          perr_en_out ;
 201 output          serr_out ;
 202 output          serr_en_out ;
 203
 204 input           req_in ;
 205
 206 output          req_out ;
 207 output          req_en_out ;
 208
 209 input           pci_trdy_in,
 210                 pci_irdy_in,
 211                 pci_frame_in,
 212                 pci_stop_in ;
 213
 214 input           master_load_on_transfer_in ;
 215 input           target_load_on_transfer_in ;
 216
 217 input           init_complete_in    ;
 218
 219 wire   [31:0]   temp_ad = tar_ad_en_reg_in ? tar_ad_in : mas_ad_in ;
 220
 221 wire ad_en_ctrl_low ;
 222
 223 wire ad_en_ctrl_mlow ;
 224
 225 wire ad_en_ctrl_mhigh ;
 226
 227 wire ad_en_ctrl_high ;
 228
 229 wire ad_enable_internal = mas_ad_en_in || tar_ad_en_in ;
 230
 231 pci_io_mux_ad_en_crit ad_en_low_gen
 232 (
 233     .ad_en_in       (ad_enable_internal),
 234     .pci_frame_in   (pci_frame_in),
 235     .pci_trdy_in    (pci_trdy_in),
 236     .pci_stop_in    (pci_stop_in),
 237     .ad_en_out      (ad_en_ctrl_low)
 238 );
 239
 240 pci_io_mux_ad_en_crit ad_en_mlow_gen
 241 (
 242     .ad_en_in       (ad_enable_internal),
 243     .pci_frame_in   (pci_frame_in),
 244     .pci_trdy_in    (pci_trdy_in),
 245     .pci_stop_in    (pci_stop_in),
 246     .ad_en_out      (ad_en_ctrl_mlow)
 247 );
 248
 249 pci_io_mux_ad_en_crit ad_en_mhigh_gen
 250 (
 251     .ad_en_in       (ad_enable_internal),
 252     .pci_frame_in   (pci_frame_in),
 253     .pci_trdy_in    (pci_trdy_in),
 254     .pci_stop_in    (pci_stop_in),
 255     .ad_en_out      (ad_en_ctrl_mhigh)
 256 );
 257
 258 pci_io_mux_ad_en_crit ad_en_high_gen
 259 (
 260     .ad_en_in       (ad_enable_internal),
 261     .pci_frame_in   (pci_frame_in),
 262     .pci_trdy_in    (pci_trdy_in),
 263     .pci_stop_in    (pci_stop_in),
 264     .ad_en_out      (ad_en_ctrl_high)
 265 );
 266
 267 assign ad_en_unregistered_out = ad_en_ctrl_high ;
 268
 269 wire load = master_load_in || target_load_in ;
 270 wire load_on_transfer = master_load_on_transfer_in || target_load_on_transfer_in ;
 271
 272 wire   ad_load_ctrl_low ;
 273 wire   ad_load_ctrl_mlow ;
 274 wire   ad_load_ctrl_mhigh ;
 275 wire   ad_load_ctrl_high ;
 276
 277 assign ad_load_out = ad_load_ctrl_high ;
 278
 279 pci_io_mux_ad_load_crit ad_load_low_gen
 280 (
 281     .load_in(load),
 282     .load_on_transfer_in(load_on_transfer),
 283     .pci_irdy_in(pci_irdy_in),
 284     .pci_trdy_in(pci_trdy_in),
 285     .load_out(ad_load_ctrl_low)
 286 );
 287
 288 pci_io_mux_ad_load_crit ad_load_mlow_gen
 289 (
 290     .load_in(load),
 291     .load_on_transfer_in(load_on_transfer),
 292     .pci_irdy_in(pci_irdy_in),
 293     .pci_trdy_in(pci_trdy_in),
 294     .load_out(ad_load_ctrl_mlow)
 295 );
 296
 297 pci_io_mux_ad_load_crit ad_load_mhigh_gen
 298 (
 299     .load_in(load),
 300     .load_on_transfer_in(load_on_transfer),
 301     .pci_irdy_in(pci_irdy_in),
 302     .pci_trdy_in(pci_trdy_in),
 303     .load_out(ad_load_ctrl_mhigh)
 304 );
 305
 306 pci_io_mux_ad_load_crit ad_load_high_gen
 307 (
 308     .load_in(load),
 309     .load_on_transfer_in(load_on_transfer),
 310     .pci_irdy_in(pci_irdy_in),
 311     .pci_trdy_in(pci_trdy_in),
 312     .load_out(ad_load_ctrl_high)
 313 );
 314
 315 pci_out_reg ad_iob0
 316 (
 317     .reset_in     ( reset_in ),
 318     .clk_in       ( clk_in) ,
 319     .dat_en_in    ( ad_load_ctrl_low ),
 320     .en_en_in     ( 1'b1 ),
 321     .dat_in       ( temp_ad[0] ) ,
 322     .en_in        ( ad_en_ctrl_low ) ,
 323     .en_out       ( ad_en_out[0] ),
 324     .dat_out      ( ad_out[0] )
 325 );
 326
 327 pci_out_reg ad_iob1
 328 (
 329     .reset_in     ( reset_in ),
 330     .clk_in       ( clk_in) ,
 331     .dat_en_in    ( ad_load_ctrl_low ),
 332     .en_en_in     ( 1'b1 ),
 333     .dat_in       ( temp_ad[1] ) ,
 334     .en_in        ( ad_en_ctrl_low ) ,
 335     .en_out       ( ad_en_out[1] ),
 336     .dat_out      ( ad_out[1] )
 337 );
 338
 339 pci_out_reg ad_iob2
 340 (
 341     .reset_in     ( reset_in ),
 342     .clk_in       ( clk_in) ,
 343     .dat_en_in    ( ad_load_ctrl_low ),
 344     .en_en_in     ( 1'b1 ),
 345     .dat_in       ( temp_ad[2] ) ,
 346     .en_in        ( ad_en_ctrl_low ) ,
 347     .en_out       ( ad_en_out[2] ),
 348     .dat_out      ( ad_out[2] )
 349 );
 350
 351 pci_out_reg ad_iob3
 352 (
 353     .reset_in     ( reset_in ),
 354     .clk_in       ( clk_in) ,
 355     .dat_en_in    ( ad_load_ctrl_low ),
 356     .en_en_in     ( 1'b1 ),
 357     .dat_in       ( temp_ad[3] ) ,
 358     .en_in        ( ad_en_ctrl_low ) ,
 359     .en_out       ( ad_en_out[3] ),
 360     .dat_out      ( ad_out[3] )
 361 );
 362
 363 pci_out_reg ad_iob4
 364 (
 365     .reset_in     ( reset_in ),
 366     .clk_in       ( clk_in) ,
 367     .dat_en_in    ( ad_load_ctrl_low ),
 368     .en_en_in     ( 1'b1 ),
 369     .dat_in       ( temp_ad[4] ) ,
 370     .en_in        ( ad_en_ctrl_low ) ,
 371     .en_out       ( ad_en_out[4] ),
 372     .dat_out      ( ad_out[4] )
 373 );
 374
 375 pci_out_reg ad_iob5
 376 (
 377     .reset_in     ( reset_in ),
 378     .clk_in       ( clk_in) ,
 379     .dat_en_in    ( ad_load_ctrl_low ),
 380     .en_en_in     ( 1'b1 ),
 381     .dat_in       ( temp_ad[5] ) ,
 382     .en_in        ( ad_en_ctrl_low ) ,
 383     .en_out       ( ad_en_out[5] ),
 384     .dat_out      ( ad_out[5] )
 385 );
 386
 387 pci_out_reg ad_iob6
 388 (
 389     .reset_in     ( reset_in ),
 390     .clk_in       ( clk_in) ,
 391     .dat_en_in    ( ad_load_ctrl_low ),
 392     .en_en_in     ( 1'b1 ),
 393     .dat_in       ( temp_ad[6] ) ,
 394     .en_in        ( ad_en_ctrl_low ) ,
 395     .en_out       ( ad_en_out[6] ),
 396     .dat_out      ( ad_out[6] )
 397 );
 398
 399 pci_out_reg ad_iob7
 400 (
 401     .reset_in     ( reset_in ),
 402     .clk_in       ( clk_in) ,
 403     .dat_en_in    ( ad_load_ctrl_low ),
 404     .en_en_in     ( 1'b1 ),
 405     .dat_in       ( temp_ad[7] ) ,
 406     .en_in        ( ad_en_ctrl_low ) ,
 407     .en_out       ( ad_en_out[7] ),
 408     .dat_out      ( ad_out[7] )
 409 );
 410
 411 pci_out_reg ad_iob8
 412 (
 413     .reset_in     ( reset_in ),
 414     .clk_in       ( clk_in) ,
 415     .dat_en_in    ( ad_load_ctrl_mlow ),
 416     .en_en_in     ( 1'b1 ),
 417     .dat_in       ( temp_ad[8] ) ,
 418     .en_in        ( ad_en_ctrl_mlow ) ,
 419     .en_out       ( ad_en_out[8] ),
 420     .dat_out      ( ad_out[8] )
 421 );
 422
 423 pci_out_reg ad_iob9
 424 (
 425     .reset_in     ( reset_in ),
 426     .clk_in       ( clk_in) ,
 427     .dat_en_in    ( ad_load_ctrl_mlow ),
 428     .en_en_in     ( 1'b1 ),
 429     .dat_in       ( temp_ad[9] ) ,
 430     .en_in        ( ad_en_ctrl_mlow ) ,
 431     .en_out       ( ad_en_out[9] ),
 432     .dat_out      ( ad_out[9] )
 433 );
 434
 435 pci_out_reg ad_iob10
 436 (
 437     .reset_in     ( reset_in ),
 438     .clk_in       ( clk_in) ,
 439     .dat_en_in    ( ad_load_ctrl_mlow ),
 440     .en_en_in     ( 1'b1 ),
 441     .dat_in       ( temp_ad[10] ) ,
 442     .en_in        ( ad_en_ctrl_mlow ) ,
 443     .en_out       ( ad_en_out[10] ),
 444     .dat_out      ( ad_out[10] )
 445 );
 446
 447 pci_out_reg ad_iob11
 448 (
 449     .reset_in     ( reset_in ),
 450     .clk_in       ( clk_in) ,
 451     .dat_en_in    ( ad_load_ctrl_mlow ),
 452     .en_en_in     ( 1'b1 ),
 453     .dat_in       ( temp_ad[11] ) ,
 454     .en_in        ( ad_en_ctrl_mlow ) ,
 455     .en_out       ( ad_en_out[11] ),
 456     .dat_out      ( ad_out[11] )
 457 );
 458
 459 pci_out_reg ad_iob12
 460 (
 461     .reset_in     ( reset_in ),
 462     .clk_in       ( clk_in) ,
 463     .dat_en_in    ( ad_load_ctrl_mlow ),
 464     .en_en_in     ( 1'b1 ),
 465     .dat_in       ( temp_ad[12] ) ,
 466     .en_in        ( ad_en_ctrl_mlow ) ,
 467     .en_out       ( ad_en_out[12] ),
 468     .dat_out      ( ad_out[12] )
 469 );
 470
 471 pci_out_reg ad_iob13
 472 (
 473     .reset_in     ( reset_in ),
 474     .clk_in       ( clk_in) ,
 475     .dat_en_in    ( ad_load_ctrl_mlow ),
 476     .en_en_in     ( 1'b1 ),
 477     .dat_in       ( temp_ad[13] ) ,
 478     .en_in        ( ad_en_ctrl_mlow ) ,
 479     .en_out       ( ad_en_out[13] ),
 480     .dat_out      ( ad_out[13] )
 481 );
 482
 483 pci_out_reg ad_iob14
 484 (
 485     .reset_in     ( reset_in ),
 486     .clk_in       ( clk_in) ,
 487     .dat_en_in    ( ad_load_ctrl_mlow ),
 488     .en_en_in     ( 1'b1 ),
 489     .dat_in       ( temp_ad[14] ) ,
 490     .en_in        ( ad_en_ctrl_mlow ) ,
 491     .en_out       ( ad_en_out[14] ),
 492     .dat_out      ( ad_out[14] )
 493 );
 494
 495 pci_out_reg ad_iob15
 496 (
 497     .reset_in     ( reset_in ),
 498     .clk_in       ( clk_in) ,
 499     .dat_en_in    ( ad_load_ctrl_mlow ),
 500     .en_en_in     ( 1'b1 ),
 501     .dat_in       ( temp_ad[15] ) ,
 502     .en_in        ( ad_en_ctrl_mlow ) ,
 503     .en_out       ( ad_en_out[15] ),
 504     .dat_out      ( ad_out[15] )
 505 );
 506
 507 pci_out_reg ad_iob16
 508 (
 509     .reset_in     ( reset_in ),
 510     .clk_in       ( clk_in) ,
 511     .dat_en_in    ( ad_load_ctrl_mhigh ),
 512     .en_en_in     ( 1'b1 ),
 513     .dat_in       ( temp_ad[16] ) ,
 514     .en_in        ( ad_en_ctrl_mhigh ) ,
 515     .en_out       ( ad_en_out[16] ),
 516     .dat_out      ( ad_out[16] )
 517 );
 518
 519 pci_out_reg ad_iob17
 520 (
 521     .reset_in     ( reset_in ),
 522     .clk_in       ( clk_in) ,
 523     .dat_en_in    ( ad_load_ctrl_mhigh ),
 524     .en_en_in     ( 1'b1 ),
 525     .dat_in       ( temp_ad[17] ) ,
 526     .en_in        ( ad_en_ctrl_mhigh ) ,
 527     .en_out       ( ad_en_out[17] ),
 528     .dat_out      ( ad_out[17] )
 529 );
 530
 531 pci_out_reg ad_iob18
 532 (
 533     .reset_in     ( reset_in ),
 534     .clk_in       ( clk_in) ,
 535     .dat_en_in    ( ad_load_ctrl_mhigh ),
 536     .en_en_in     ( 1'b1 ),
 537     .dat_in       ( temp_ad[18] ) ,
 538     .en_in        ( ad_en_ctrl_mhigh ) ,
 539     .en_out       ( ad_en_out[18] ),
 540     .dat_out      ( ad_out[18] )
 541 );
 542
 543 pci_out_reg ad_iob19
 544 (
 545     .reset_in     ( reset_in ),
 546     .clk_in       ( clk_in) ,
 547     .dat_en_in    ( ad_load_ctrl_mhigh ),
 548     .en_en_in     ( 1'b1 ),
 549     .dat_in       ( temp_ad[19] ) ,
 550     .en_in        ( ad_en_ctrl_mhigh ) ,
 551     .en_out       ( ad_en_out[19] ),
 552     .dat_out      ( ad_out[19] )
 553 );
 554
 555 pci_out_reg ad_iob20
 556 (
 557     .reset_in     ( reset_in ),
 558     .clk_in       ( clk_in) ,
 559     .dat_en_in    ( ad_load_ctrl_mhigh ),
 560     .en_en_in     ( 1'b1 ),
 561     .dat_in       ( temp_ad[20] ) ,
 562     .en_in        ( ad_en_ctrl_mhigh ) ,
 563     .en_out       ( ad_en_out[20] ),
 564     .dat_out      ( ad_out[20] )
 565 );
 566
 567 pci_out_reg ad_iob21
 568 (
 569     .reset_in     ( reset_in ),
 570     .clk_in       ( clk_in) ,
 571     .dat_en_in    ( ad_load_ctrl_mhigh ),
 572     .en_en_in     ( 1'b1 ),
 573     .dat_in       ( temp_ad[21] ) ,
 574     .en_in        ( ad_en_ctrl_mhigh ) ,
 575     .en_out       ( ad_en_out[21] ),
 576     .dat_out      ( ad_out[21] )
 577 );
 578
 579 pci_out_reg ad_iob22
 580 (
 581     .reset_in     ( reset_in ),
 582     .clk_in       ( clk_in) ,
 583     .dat_en_in    ( ad_load_ctrl_mhigh ),
 584     .en_en_in     ( 1'b1 ),
 585     .dat_in       ( temp_ad[22] ) ,
 586     .en_in        ( ad_en_ctrl_mhigh ) ,
 587     .en_out       ( ad_en_out[22] ),
 588     .dat_out      ( ad_out[22] )
 589 );
 590
 591 pci_out_reg ad_iob23
 592 (
 593     .reset_in     ( reset_in ),
 594     .clk_in       ( clk_in) ,
 595     .dat_en_in    ( ad_load_ctrl_mhigh ),
 596     .en_en_in     ( 1'b1 ),
 597     .dat_in       ( temp_ad[23] ) ,
 598     .en_in        ( ad_en_ctrl_mhigh ) ,
 599     .en_out       ( ad_en_out[23] ),
 600     .dat_out      ( ad_out[23] )
 601 );
 602
 603 pci_out_reg ad_iob24
 604 (
 605     .reset_in     ( reset_in ),
 606     .clk_in       ( clk_in) ,
 607     .dat_en_in    ( ad_load_ctrl_high ),
 608     .en_en_in     ( 1'b1 ),
 609     .dat_in       ( temp_ad[24] ) ,
 610     .en_in        ( ad_en_ctrl_high ) ,
 611     .en_out       ( ad_en_out[24] ),
 612     .dat_out      ( ad_out[24] )
 613 );
 614
 615 pci_out_reg ad_iob25
 616 (
 617     .reset_in     ( reset_in ),
 618     .clk_in       ( clk_in) ,
 619     .dat_en_in    ( ad_load_ctrl_high ),
 620     .en_en_in     ( 1'b1 ),
 621     .dat_in       ( temp_ad[25] ) ,
 622     .en_in        ( ad_en_ctrl_high ) ,
 623     .en_out       ( ad_en_out[25] ),
 624     .dat_out      ( ad_out[25] )
 625 );
 626
 627 pci_out_reg ad_iob26
 628 (
 629     .reset_in     ( reset_in ),
 630     .clk_in       ( clk_in) ,
 631     .dat_en_in    ( ad_load_ctrl_high ),
 632     .en_en_in     ( 1'b1 ),
 633     .dat_in       ( temp_ad[26] ) ,
 634     .en_in        ( ad_en_ctrl_high ) ,
 635     .en_out       ( ad_en_out[26] ),
 636     .dat_out      ( ad_out[26] )
 637 );
 638
 639 pci_out_reg ad_iob27
 640 (
 641     .reset_in     ( reset_in ),
 642     .clk_in       ( clk_in) ,
 643     .dat_en_in    ( ad_load_ctrl_high ),
 644     .en_en_in     ( 1'b1 ),
 645     .dat_in       ( temp_ad[27] ) ,
 646     .en_in        ( ad_en_ctrl_high ) ,
 647     .en_out       ( ad_en_out[27] ),
 648     .dat_out      ( ad_out[27] )
 649 );
 650
 651 pci_out_reg ad_iob28
 652 (
 653     .reset_in     ( reset_in ),
 654     .clk_in       ( clk_in) ,
 655     .dat_en_in    ( ad_load_ctrl_high ),
 656     .en_en_in     ( 1'b1 ),
 657     .dat_in       ( temp_ad[28] ) ,
 658     .en_in        ( ad_en_ctrl_high ) ,
 659     .en_out       ( ad_en_out[28] ),
 660     .dat_out      ( ad_out[28] )
 661 );
 662
 663 pci_out_reg ad_iob29
 664 (
 665     .reset_in     ( reset_in ),
 666     .clk_in       ( clk_in) ,
 667     .dat_en_in    ( ad_load_ctrl_high ),
 668     .en_en_in     ( 1'b1 ),
 669     .dat_in       ( temp_ad[29] ) ,
 670     .en_in        ( ad_en_ctrl_high ) ,
 671     .en_out       ( ad_en_out[29] ),
 672     .dat_out      ( ad_out[29] )
 673 );
 674
 675 pci_out_reg ad_iob30
 676 (
 677     .reset_in     ( reset_in ),
 678     .clk_in       ( clk_in) ,
 679     .dat_en_in    ( ad_load_ctrl_high ),
 680     .en_en_in     ( 1'b1 ),
 681     .dat_in       ( temp_ad[30] ) ,
 682     .en_in        ( ad_en_ctrl_high ) ,
 683     .en_out       ( ad_en_out[30] ),
 684     .dat_out      ( ad_out[30] )
 685 );
 686
 687 pci_out_reg ad_iob31
 688 (
 689     .reset_in     ( reset_in ),
 690     .clk_in       ( clk_in) ,
 691     .dat_en_in    ( ad_load_ctrl_high ),
 692     .en_en_in     ( 1'b1 ),
 693     .dat_in       ( temp_ad[31] ) ,
 694     .en_in        ( ad_en_ctrl_high ) ,
 695     .en_out       ( ad_en_out[31] ),
 696     .dat_out      ( ad_out[31] )
 697 );
 698
 699 wire [3:0] cbe_load_ctrl = {4{ master_load_in }} ;
 700 wire [3:0] cbe_en_ctrl   = {4{ cbe_en_in }} ;
 701
 702 pci_out_reg cbe_iob0
 703 (
 704     .reset_in     ( reset_in ),
 705     .clk_in       ( clk_in) ,
 706     .dat_en_in    ( cbe_load_ctrl[0] ),
 707     .en_en_in     ( 1'b1 ),
 708     .dat_in       ( cbe_in[0] ) ,
 709     .en_in        ( cbe_en_ctrl[0] ) ,
 710     .en_out       ( cbe_en_out[0] ),
 711     .dat_out      ( cbe_out[0] )
 712 );
 713
 714 pci_out_reg cbe_iob1
 715 (
 716     .reset_in     ( reset_in ),
 717     .clk_in       ( clk_in) ,
 718     .dat_en_in    ( cbe_load_ctrl[1] ),
 719     .en_en_in     ( 1'b1 ),
 720     .dat_in       ( cbe_in[1] ) ,
 721     .en_in        ( cbe_en_ctrl[1] ) ,
 722     .en_out       ( cbe_en_out[1] ),
 723     .dat_out      ( cbe_out[1] )
 724 );
 725
 726 pci_out_reg cbe_iob2
 727 (
 728     .reset_in     ( reset_in ),
 729     .clk_in       ( clk_in) ,
 730     .dat_en_in    ( cbe_load_ctrl[2] ),
 731     .en_en_in     ( 1'b1 ),
 732     .dat_in       ( cbe_in[2] ) ,
 733     .en_in        ( cbe_en_ctrl[2] ) ,
 734     .en_out       ( cbe_en_out[2] ),
 735     .dat_out      ( cbe_out[2] )
 736 );
 737
 738 pci_out_reg cbe_iob3
 739 (
 740     .reset_in     ( reset_in ),
 741     .clk_in       ( clk_in) ,
 742     .dat_en_in    ( cbe_load_ctrl[3] ),
 743     .en_en_in     ( 1'b1 ),
 744     .dat_in       ( cbe_in[3] ) ,
 745     .en_in        ( cbe_en_ctrl[3] ) ,
 746     .en_out       ( cbe_en_out[3] ),
 747     .dat_out      ( cbe_out[3] )
 748 );
 749
 750 pci_out_reg frame_iob
 751 (
 752     .reset_in     ( reset_in ),
 753     .clk_in       ( clk_in) ,
 754     .dat_en_in    ( frame_load_in ),
 755     .en_en_in     ( 1'b1 ),
 756     .dat_in       ( frame_in ) ,
 757     .en_in        ( frame_en_in ) ,
 758     .en_out       ( frame_en_out ),
 759     .dat_out      ( frame_out )
 760 );
 761
 762 pci_out_reg irdy_iob
 763 (
 764     .reset_in     ( reset_in ),
 765     .clk_in       ( clk_in) ,
 766     .dat_en_in    ( 1'b1 ),
 767     .en_en_in     ( 1'b1 ),
 768     .dat_in       ( irdy_in ) ,
 769     .en_in        ( irdy_en_in ) ,
 770     .en_out       ( irdy_en_out ),
 771     .dat_out      ( irdy_out )
 772 );
 773
 774 pci_out_reg trdy_iob
 775 (
 776     .reset_in     ( reset_in ),
 777     .clk_in       ( clk_in) ,
 778     .dat_en_in    ( 1'b1 ),
 779     .en_en_in     ( 1'b1 ),
 780     .dat_in       ( trdy_in ) ,
 781     .en_in        ( trdy_en_in ) ,
 782     .en_out       ( trdy_en_out ),
 783     .dat_out      ( trdy_out )
 784 );
 785
 786 pci_out_reg stop_iob
 787 (
 788     .reset_in     ( reset_in ),
 789     .clk_in       ( clk_in) ,
 790     .dat_en_in    ( 1'b1 ),
 791     .en_en_in     ( 1'b1 ),
 792     .dat_in       ( stop_in ) ,
 793     .en_in        ( stop_en_in ) ,
 794     .en_out       ( stop_en_out ),
 795     .dat_out      ( stop_out )
 796 );
 797
 798 pci_out_reg devsel_iob
 799 (
 800     .reset_in     ( reset_in ),
 801     .clk_in       ( clk_in) ,
 802     .dat_en_in    ( 1'b1 ),
 803     .en_en_in     ( 1'b1 ),
 804     .dat_in       ( devsel_in ) ,
 805     .en_in        ( devsel_en_in ) ,
 806     .en_out       ( devsel_en_out ),
 807     .dat_out      ( devsel_out )
 808 );
 809
 810 pci_out_reg par_iob
 811 (
 812     .reset_in     ( reset_in ),
 813     .clk_in       ( clk_in) ,
 814     .dat_en_in    ( 1'b1 ),
 815     .en_en_in     ( 1'b1 ),
 816     .dat_in       ( par_in ) ,
 817     .en_in        ( par_en_in ) ,
 818     .en_out       ( par_en_out ),
 819     .dat_out      ( par_out )
 820 );
 821
 822 pci_out_reg perr_iob
 823 (
 824     .reset_in     ( reset_in ),
 825     .clk_in       ( clk_in) ,
 826     .dat_en_in    ( 1'b1 ),
 827     .en_en_in     ( 1'b1 ),
 828     .dat_in       ( perr_in ) ,
 829     .en_in        ( perr_en_in ) ,
 830     .en_out       ( perr_en_out ),
 831     .dat_out      ( perr_out )
 832 );
 833
 834 pci_out_reg serr_iob
 835 (
 836     .reset_in     ( reset_in ),
 837     .clk_in       ( clk_in) ,
 838     .dat_en_in    ( 1'b1 ),
 839     .en_en_in     ( 1'b1 ),
 840     .dat_in       ( serr_in ) ,
 841     .en_in        ( serr_en_in ) ,
 842     .en_out       ( serr_en_out ),
 843     .dat_out      ( serr_out )
 844 );
 845
 846 pci_out_reg req_iob
 847 (
 848     .reset_in     ( reset_in ),
 849     .clk_in       ( clk_in) ,
 850     .dat_en_in    ( 1'b1 ),
 851     .en_en_in     ( 1'b1 ),
 852     .dat_in       ( req_in ) ,
 853     .en_in        ( init_complete_in ) ,
 854     .en_out       ( req_en_out ),
 855     .dat_out      ( req_out )
 856 );
 857
 858 endmodule