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1--+-------------------------------------------------------------------------------------------------+\r
2--| |\r
3--| File: pci32tlite.vhd |\r
4--| |\r
5--| Components: pcidec_new.vhd |\r
6--| pciwbsequ.vhd |\r
7--| pcidmux.vhd |\r
8--| pciregs.vhd |\r
9--| pcipargen.vhd |\r
10--| -- Libs -- |\r
11--| ona.vhd |\r
12--| |\r
13--| Description: TARGET PCI : |\r
14--| |\r
15--| * PCI Target 32 Bits |\r
16--| * BAR0 32MByte address space |\r
17--| * Whisbone compatible: D16, 32MB address space |\r
18--| |\r
19--+-------------------------------------------------------------------------------------------------+\r
20--| |\r
21--| Revision history : |\r
22--| Date Version Author Description |\r
23--| 2005-05-13 R00A00 PAU First alfa revision (eng) |\r
24--| 2006-01-05 R00B00 MS inverted reset nres |\r
25--| and added debug signals debug_init and debug_access | |\r
26--| |\r
27--| To do: |\r
28--| |\r
29--+-------------------------------------------------------------------------------------------------+\r
30--+-----------------------------------------------------------------+\r
31--| |\r
32--| Copyright (C) 2005 Peio Azkarate, peio@opencores.org | \r
33--| |\r
34--| This source file may be used and distributed without |\r
35--| restriction provided that this copyright statement is not |\r
36--| removed from the file and that any derivative work contains |\r
37--| the original copyright notice and the associated disclaimer. |\r
38--| |\r
39--| This source file is free software; you can redistribute it |\r
40--| and/or modify it under the terms of the GNU Lesser General |\r
41--| Public License as published by the Free Software Foundation; |\r
42--| either version 2.1 of the License, or (at your option) any |\r
43--| later version. |\r
44--| |\r
45--| This source is distributed in the hope that it will be |\r
46--| useful, but WITHOUT ANY WARRANTY; without even the implied |\r
47--| warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |\r
48--| PURPOSE. See the GNU Lesser General Public License for more |\r
49--| details. |\r
50--| |\r
51--| You should have received a copy of the GNU Lesser General |\r
52--| Public License along with this source; if not, download it |\r
53--| from http://www.opencores.org/lgpl.shtml |\r
54--| |\r
55--+-----------------------------------------------------------------+ \r
56\r
57--+-----------------------------------------------------------------------------+\r
58--| LIBRARIES |\r
59--+-----------------------------------------------------------------------------+\r
60\r
61library ieee;\r
62use ieee.std_logic_1164.all;\r
63\r
64--+-----------------------------------------------------------------------------+\r
65--| ENTITY |\r
66--+-----------------------------------------------------------------------------+\r
67\r
68entity pci32tlite is\r
69generic (\r
70\r
71 vendorID : std_logic_vector(15 downto 0) := x"10EE";\r
72 deviceID : std_logic_vector(15 downto 0) := x"0100";\r
73 revisionID : std_logic_vector(7 downto 0) := x"37";\r
74 subsystemID : std_logic_vector(15 downto 0) := x"1558";\r
75 subsystemvID : std_logic_vector(15 downto 0) := x"0480";\r
76 jcarr1ID : std_logic_vector(31 downto 0) := x"12345671";\r
77 jcarr2ID : std_logic_vector(31 downto 0) := x"12345672";\r
78 jcarr3ID : std_logic_vector(31 downto 0) := x"12345673";\r
79 jcarr4ID : std_logic_vector(31 downto 0) := x"12345674";\r
80 jcarr5ID : std_logic_vector(31 downto 0) := x"12345675";\r
81 jcarr6ID : std_logic_vector(31 downto 0) := x"12345676";\r
82 jcarr7ID : std_logic_vector(31 downto 0) := x"12345677";\r
83 jcarr8ID : std_logic_vector(31 downto 0) := x"12345678";\r
84 jcarr9ID : std_logic_vector(31 downto 0) := x"12345679";\r
85 jcarr10ID : std_logic_vector(31 downto 0) := x"12345680";\r
86 jcarr11ID : std_logic_vector(31 downto 0) := x"12345681";\r
87 jcarr12ID : std_logic_vector(31 downto 0) := x"12345682";\r
88 jcarr13ID : std_logic_vector(31 downto 0) := x"12345683";\r
89 jcarr14ID : std_logic_vector(31 downto 0) := x"12345684";\r
90 jcarr15ID : std_logic_vector(31 downto 0) := x"12345685";\r
91 jcarr16ID : std_logic_vector(31 downto 0) := x"12345686";\r
92 jcarr17ID : std_logic_vector(31 downto 0) := x"12345687";\r
93 jcarr18ID : std_logic_vector(31 downto 0) := x"12345688";\r
94 jcarr19ID : std_logic_vector(31 downto 0) := x"12345689";\r
95 jcarr20ID : std_logic_vector(31 downto 0) := x"12345690";\r
96 jcarr21ID : std_logic_vector(31 downto 0) := x"12345691";\r
97 jcarr22ID : std_logic_vector(31 downto 0) := x"12345692";\r
98 jcarr23ID : std_logic_vector(31 downto 0) := x"12345693";\r
99 jcarr24ID : std_logic_vector(31 downto 0) := x"12345694";\r
100 jcarr25ID : std_logic_vector(31 downto 0) := x"12345695";\r
101 jcarr26ID : std_logic_vector(31 downto 0) := x"12345696";\r
102 jcarr27ID : std_logic_vector(31 downto 0) := x"12345697";\r
103 jcarr28ID : std_logic_vector(31 downto 0) := x"12345698";\r
104 jcarr29ID : std_logic_vector(31 downto 0) := x"12345699";\r
105 jcarr30ID : std_logic_vector(31 downto 0) := x"12345700";\r
106 jcarr31ID : std_logic_vector(31 downto 0) := x"12345701";\r
107 jcarr32ID : std_logic_vector(31 downto 0) := x"12345702";\r
108 jcarr33ID : std_logic_vector(31 downto 0) := x"12345703";\r
109 jcarr34ID : std_logic_vector(31 downto 0) := x"12345704";\r
110 jcarr35ID : std_logic_vector(31 downto 0) := x"12345705";\r
111 jcarr36ID : std_logic_vector(31 downto 0) := x"12345706";\r
112 jcarr37ID : std_logic_vector(31 downto 0) := x"12345707";\r
113 jcarr38ID : std_logic_vector(31 downto 0) := x"12345708";\r
114 jcarr39ID : std_logic_vector(31 downto 0) := x"12345709";\r
115 jcarr40ID : std_logic_vector(31 downto 0) := x"12345710";\r
116 jcarr41ID : std_logic_vector(31 downto 0) := x"12345711";\r
117 jcarr42ID : std_logic_vector(31 downto 0) := x"12345712"\r
118\r
119);\r
120port (\r
121\r
122 -- General \r
123 clk33 : in std_logic;\r
124 nrst : in std_logic;\r
125 \r
126 -- PCI target 32bits\r
127 ad : inout std_logic_vector(31 downto 0);\r
128 cbe : in std_logic_vector(3 downto 0);\r
129 par : out std_logic; \r
130 frame : in std_logic;\r
131 irdy : in std_logic;\r
132 trdy : out std_logic;\r
133 devsel : out std_logic;\r
134 stop : out std_logic;\r
135 idsel : in std_logic;\r
136 perr : out std_logic;\r
137 serr : out std_logic;\r
138 intb : out std_logic;\r
139 \r
140 -- Master whisbone\r
141 wb_adr_o : out std_logic_vector(24 downto 1); \r
142 wb_dat_i : in std_logic_vector(15 downto 0);\r
143 wb_dat_o : out std_logic_vector(15 downto 0);\r
144 wb_sel_o : out std_logic_vector(1 downto 0);\r
145 wb_we_o : out std_logic;\r
146 wb_stb_o : inout std_logic;\r
147 wb_cyc_o : out std_logic;\r
148 wb_ack_i : in std_logic;\r
149 wb_err_i : in std_logic;\r
150 wb_int_i : in std_logic;\r
151\r
152 -- debug signals\r
153 debug_init : out std_logic;\r
154 debug_access : out std_logic \r
155\r
156);\r
157end pci32tlite;\r
158\r
159\r
160--+-----------------------------------------------------------------------------+\r
161--| ARCHITECTURE |\r
162--+-----------------------------------------------------------------------------+\r
163\r
164architecture rtl of pci32tlite is\r
165\r
166\r
167--+-----------------------------------------------------------------------------+\r
168--| COMPONENTS |\r
169--+-----------------------------------------------------------------------------+\r
170\r
171\r
172 component pcidec_new\r
173 port (\r
174 \r
175 clk_i : in std_logic;\r
176 nrst_i : in std_logic;\r
177 --\r
178 ad_i : in std_logic_vector(31 downto 0);\r
179 cbe_i : in std_logic_vector(3 downto 0);\r
180 idsel_i : in std_logic;\r
181 bar0_i : in std_logic_vector(31 downto 25);\r
182 memEN_i : in std_logic;\r
183 pciadrLD_i : in std_logic;\r
184 adrcfg_o : out std_logic;\r
185 adrmem_o : out std_logic;\r
186 adr_o : out std_logic_vector(24 downto 1);\r
187 cmd_o : out std_logic_vector(3 downto 0)\r
188 \r
189 );\r
190 end component;\r
191\r
192 \r
193 component pciwbsequ\r
194 port (\r
195 \r
196 -- General \r
197 clk_i : in std_logic;\r
198 nrst_i : in std_logic;\r
199 -- pci \r
200 cmd_i : in std_logic_vector(3 downto 0);\r
201 cbe_i : in std_logic_vector(3 downto 0);\r
202 frame_i : in std_logic;\r
203 irdy_i : in std_logic;\r
204 devsel_o : out std_logic;\r
205 trdy_o : out std_logic;\r
206 -- control\r
207 adrcfg_i : in std_logic;\r
208 adrmem_i : in std_logic;\r
209 pciadrLD_o : out std_logic;\r
210 pcidOE_o : out std_logic;\r
211 parOE_o : out std_logic; \r
212 wbdatLD_o : out std_logic;\r
213 wbrgdMX_o : out std_logic;\r
214 wbd16MX_o : out std_logic;\r
215 wrcfg_o : out std_logic;\r
216 rdcfg_o : out std_logic;\r
217 -- whisbone\r
218 wb_sel_o : out std_logic_vector(1 downto 0);\r
219 wb_we_o : out std_logic;\r
220 wb_stb_o : inout std_logic; \r
221 wb_cyc_o : out std_logic;\r
222 wb_ack_i : in std_logic;\r
223 wb_err_i : in std_logic; \r
224 -- debug signals\r
225 debug_init : out std_logic;\r
226 debug_access : out std_logic\r
227 );\r
228 end component;\r
229\r
230\r
231 component pcidmux\r
232 port (\r
233 \r
234 clk_i : in std_logic;\r
235 nrst_i : in std_logic;\r
236 --\r
237 d_io : inout std_logic_vector(31 downto 0);\r
238 pcidatout_o : out std_logic_vector(31 downto 0);\r
239 pcidOE_i : in std_logic;\r
240 wbdatLD_i : in std_logic;\r
241 wbrgdMX_i : in std_logic;\r
242 wbd16MX_i : in std_logic;\r
243 wb_dat_i : in std_logic_vector(15 downto 0);\r
244 wb_dat_o : out std_logic_vector(15 downto 0);\r
245 rg_dat_i : in std_logic_vector(31 downto 0);\r
246 rg_dat_o : out std_logic_vector(31 downto 0)\r
247 \r
248 );\r
249 end component;\r
250\r
251\r
252 component pciregs\r
253 generic (\r
254\r
255 vendorID : std_logic_vector(15 downto 0);\r
256 deviceID : std_logic_vector(15 downto 0);\r
257 revisionID : std_logic_vector(7 downto 0);\r
258 subsystemID : std_logic_vector(15 downto 0);\r
259 subsystemvID : std_logic_vector(15 downto 0);\r
260 jcarr1ID : std_logic_vector(31 downto 0);\r
261 jcarr2ID : std_logic_vector(31 downto 0);\r
262 jcarr3ID : std_logic_vector(31 downto 0);\r
263 jcarr4ID : std_logic_vector(31 downto 0);\r
264 jcarr5ID : std_logic_vector(31 downto 0);\r
265 jcarr6ID : std_logic_vector(31 downto 0);\r
266 jcarr7ID : std_logic_vector(31 downto 0);\r
267 jcarr8ID : std_logic_vector(31 downto 0);\r
268 jcarr9ID : std_logic_vector(31 downto 0);\r
269 jcarr10ID : std_logic_vector(31 downto 0);\r
270 jcarr11ID : std_logic_vector(31 downto 0);\r
271 jcarr12ID : std_logic_vector(31 downto 0);\r
272 jcarr13ID : std_logic_vector(31 downto 0);\r
273 jcarr14ID : std_logic_vector(31 downto 0);\r
274 jcarr15ID : std_logic_vector(31 downto 0);\r
275 jcarr16ID : std_logic_vector(31 downto 0);\r
276 jcarr17ID : std_logic_vector(31 downto 0);\r
277 jcarr18ID : std_logic_vector(31 downto 0);\r
278 jcarr19ID : std_logic_vector(31 downto 0);\r
279 jcarr20ID : std_logic_vector(31 downto 0);\r
280 jcarr21ID : std_logic_vector(31 downto 0);\r
281 jcarr22ID : std_logic_vector(31 downto 0);\r
282 jcarr23ID : std_logic_vector(31 downto 0);\r
283 jcarr24ID : std_logic_vector(31 downto 0);\r
284 jcarr25ID : std_logic_vector(31 downto 0);\r
285 jcarr26ID : std_logic_vector(31 downto 0);\r
286 jcarr27ID : std_logic_vector(31 downto 0);\r
287 jcarr28ID : std_logic_vector(31 downto 0);\r
288 jcarr29ID : std_logic_vector(31 downto 0);\r
289 jcarr30ID : std_logic_vector(31 downto 0);\r
290 jcarr31ID : std_logic_vector(31 downto 0);\r
291 jcarr32ID : std_logic_vector(31 downto 0);\r
292 jcarr33ID : std_logic_vector(31 downto 0);\r
293 jcarr34ID : std_logic_vector(31 downto 0);\r
294 jcarr35ID : std_logic_vector(31 downto 0);\r
295 jcarr36ID : std_logic_vector(31 downto 0);\r
296 jcarr37ID : std_logic_vector(31 downto 0);\r
297 jcarr38ID : std_logic_vector(31 downto 0);\r
298 jcarr39ID : std_logic_vector(31 downto 0);\r
299 jcarr40ID : std_logic_vector(31 downto 0);\r
300 jcarr41ID : std_logic_vector(31 downto 0);\r
301 jcarr42ID : std_logic_vector(31 downto 0)\r
302\r
303 );\r
304 port (\r
305 \r
306 clk_i : in std_logic;\r
307 nrst_i : in std_logic;\r
308 --\r
309 adr_i : in std_logic_vector(7 downto 2);\r
310 cbe_i : in std_logic_vector(3 downto 0);\r
311 dat_i : in std_logic_vector(31 downto 0);\r
312 dat_o : out std_logic_vector(31 downto 0);\r
313 wrcfg_i : in std_logic;\r
314 rdcfg_i : in std_logic;\r
315 perr_i : in std_logic;\r
316 serr_i : in std_logic;\r
317 tabort_i : in std_logic;\r
318 bar0_o : out std_logic_vector(31 downto 25);\r
319 perrEN_o : out std_logic;\r
320 serrEN_o : out std_logic;\r
321 memEN_o : out std_logic\r
322 \r
323 );\r
324 end component;\r
325\r
326\r
327 component pcipargen\r
328 port (\r
329\r
330 clk_i : in std_logic;\r
331 pcidatout_i : in std_logic_vector(31 downto 0);\r
332 cbe_i : in std_logic_vector(3 downto 0);\r
333 parOE_i : in std_logic;\r
334 par_o : out std_logic\r
335 \r
336 ); \r
337 end component;\r
338\r
339\r
340--+-----------------------------------------------------------------------------+\r
341--| CONSTANTS |\r
342--+-----------------------------------------------------------------------------+\r
343--+-----------------------------------------------------------------------------+\r
344--| SIGNALS |\r
345--+-----------------------------------------------------------------------------+\r
346\r
347 signal bar0 : std_logic_vector(31 downto 25);\r
348 signal memEN : std_logic;\r
349 signal pciadrLD : std_logic;\r
350 signal adrcfg : std_logic;\r
351 signal adrmem : std_logic;\r
352 signal adr : std_logic_vector(24 downto 1);\r
353 signal cmd : std_logic_vector(3 downto 0);\r
354 signal pcidOE : std_logic;\r
355 signal parOE : std_logic; \r
356 signal wbdatLD : std_logic;\r
357 signal wbrgdMX : std_logic;\r
358 signal wbd16MX : std_logic;\r
359 signal wrcfg : std_logic;\r
360 signal rdcfg : std_logic;\r
361 signal pcidatread : std_logic_vector(31 downto 0);\r
362 signal pcidatwrite : std_logic_vector(31 downto 0);\r
363 signal pcidatout : std_logic_vector(31 downto 0); \r
364 signal parerr : std_logic;\r
365 signal syserr : std_logic;\r
366 signal tabort : std_logic;\r
367 signal perrEN : std_logic;\r
368 signal serrEN : std_logic;\r
369 \r
370begin\r
371\r
372\r
373 --+-------------------------------------------------------------------------+\r
374 --| Component instances |\r
375 --+-------------------------------------------------------------------------+\r
376\r
377 --+-----------------------------------------+\r
378 --| PCI decoder |\r
379 --+-----------------------------------------+\r
380\r
381 u1: component pcidec_new\r
382 port map (\r
383\r
384 clk_i => clk33,\r
385 nrst_i => nrst,\r
386 --\r
387 ad_i => ad,\r
388 cbe_i => cbe,\r
389 idsel_i => idsel,\r
390 bar0_i => bar0,\r
391 memEN_i => memEN,\r
392 pciadrLD_i => pciadrLD, \r
393 adrcfg_o => adrcfg,\r
394 adrmem_o => adrmem,\r
395 adr_o => adr,\r
396 cmd_o => cmd\r
397 \r
398 );\r
399\r
400\r
401 --+-----------------------------------------+\r
402 --| PCI-WB Sequencer |\r
403 --+-----------------------------------------+\r
404\r
405 u2: component pciwbsequ \r
406 port map (\r
407\r
408 -- General \r
409 clk_i => clk33, \r
410 nrst_i => nrst,\r
411 -- pci \r
412 cmd_i => cmd,\r
413 cbe_i => cbe,\r
414 frame_i => frame,\r
415 irdy_i => irdy, \r
416 devsel_o => devsel,\r
417 trdy_o => trdy, \r
418 -- control\r
419 adrcfg_i => adrcfg,\r
420 adrmem_i => adrmem,\r
421 pciadrLD_o => pciadrLD,\r
422 pcidOE_o => pcidOE,\r
423 parOE_o => parOE, \r
424 wbdatLD_o => wbdatLD,\r
425 wbrgdMX_o => wbrgdMX,\r
426 wbd16MX_o => wbd16MX,\r
427 wrcfg_o => wrcfg,\r
428 rdcfg_o => rdcfg,\r
429 -- whisbone\r
430 wb_sel_o => wb_sel_o,\r
431 wb_we_o => wb_we_o,\r
432 wb_stb_o => wb_stb_o,\r
433 wb_cyc_o => wb_cyc_o,\r
434 wb_ack_i => wb_ack_i,\r
435 wb_err_i => wb_err_i,\r
436 -- debug signals\r
437 debug_init => debug_init, \r
438 debug_access => debug_access\r
439 );\r
440 \r
441\r
442 --+-----------------------------------------+\r
443 --| PCI-wb datamultiplexer |\r
444 --+-----------------------------------------+\r
445\r
446 u3: component pcidmux\r
447 port map (\r
448\r
449 clk_i => clk33,\r
450 nrst_i => nrst,\r
451 --\r
452 d_io => ad, \r
453 pcidatout_o => pcidatout, \r
454 pcidOE_i => pcidOE,\r
455 wbdatLD_i => wbdatLD,\r
456 wbrgdMX_i => wbrgdMX,\r
457 wbd16MX_i => wbd16MX,\r
458 wb_dat_i => wb_dat_i,\r
459 wb_dat_o => wb_dat_o,\r
460 rg_dat_i => pcidatread,\r
461 rg_dat_o => pcidatwrite\r
462 \r
463 );\r
464\r
465\r
466 --+-----------------------------------------+\r
467 --| PCI registers |\r
468 --+-----------------------------------------+\r
469\r
470 u4: component pciregs\r
471 generic map (\r
472\r
473 vendorID => vendorID,\r
474 deviceID => deviceID,\r
475 revisionID => revisionID,\r
476 subsystemID => subsystemID,\r
477 subsystemvID => subsystemvID,\r
478 jcarr1ID => jcarr1ID,\r
479 jcarr2ID => jcarr2ID,\r
480 jcarr3ID => jcarr3ID,\r
481 jcarr4ID => jcarr4ID,\r
482 jcarr5ID => jcarr5ID,\r
483 jcarr6ID => jcarr6ID,\r
484 jcarr7ID => jcarr7ID,\r
485 jcarr8ID => jcarr8ID,\r
486 jcarr9ID => jcarr9ID,\r
487 jcarr10ID => jcarr10ID,\r
488 jcarr11ID => jcarr11ID,\r
489 jcarr12ID => jcarr12ID,\r
490 jcarr13ID => jcarr13ID,\r
491 jcarr14ID => jcarr14ID,\r
492 jcarr15ID => jcarr15ID,\r
493 jcarr16ID => jcarr16ID,\r
494 jcarr17ID => jcarr17ID,\r
495 jcarr18ID => jcarr18ID,\r
496 jcarr19ID => jcarr19ID,\r
497 jcarr20ID => jcarr20ID,\r
498 jcarr21ID => jcarr21ID,\r
499 jcarr22ID => jcarr22ID,\r
500 jcarr23ID => jcarr23ID,\r
501 jcarr24ID => jcarr24ID,\r
502 jcarr25ID => jcarr25ID,\r
503 jcarr26ID => jcarr26ID,\r
504 jcarr27ID => jcarr27ID,\r
505 jcarr28ID => jcarr28ID,\r
506 jcarr29ID => jcarr29ID,\r
507 jcarr30ID => jcarr30ID,\r
508 jcarr31ID => jcarr31ID,\r
509 jcarr32ID => jcarr32ID,\r
510 jcarr33ID => jcarr33ID,\r
511 jcarr34ID => jcarr34ID,\r
512 jcarr35ID => jcarr35ID,\r
513 jcarr36ID => jcarr36ID,\r
514 jcarr37ID => jcarr37ID,\r
515 jcarr38ID => jcarr38ID,\r
516 jcarr39ID => jcarr39ID,\r
517 jcarr40ID => jcarr40ID,\r
518 jcarr41ID => jcarr41ID,\r
519 jcarr42ID => jcarr42ID\r
520\r
521 )\r
522 port map (\r
523\r
524 clk_i => clk33,\r
525 nrst_i => nrst,\r
526 --\r
527 adr_i => adr(7 downto 2),\r
528 cbe_i => cbe,\r
529 dat_i => pcidatwrite,\r
530 dat_o => pcidatread,\r
531 wrcfg_i => wrcfg,\r
532 rdcfg_i => rdcfg,\r
533 perr_i => parerr,\r
534 serr_i => syserr,\r
535 tabort_i => tabort,\r
536 bar0_o => bar0,\r
537 perrEN_o => perrEN,\r
538 serrEN_o => serrEN,\r
539 memEN_o => memEN\r
540 \r
541 );\r
542 \r
543 --+-----------------------------------------+\r
544 --| PCI Parity Gnerator |\r
545 --+-----------------------------------------+\r
546\r
547 u5: component pcipargen\r
548 port map (\r
549\r
550 clk_i => clk33,\r
551 pcidatout_i => pcidatout, \r
552 cbe_i => cbe,\r
553 parOE_i => parOE, \r
554 par_o => par\r
555 \r
556 );\r
557\r
558\r
559 --+-----------------------------------------+\r
560 --| Whisbone Address bus |\r
561 --+-----------------------------------------+\r
562 \r
563 wb_adr_o <= adr;\r
564\r
565\r
566 --+-----------------------------------------+\r
567 --| unimplemented |\r
568 --+-----------------------------------------+\r
569\r
570 parerr <= '0';\r
571 syserr <= '0';\r
572 tabort <= '0';\r
573\r
574\r
575 --+-----------------------------------------+\r
576 --| unused outputs |\r
577 --+-----------------------------------------+\r
578 -- #stop: Curret TARGET indicates to Master stop current transaction\r
579 -- #perr:\r
580 -- #serr:\r
581 \r
582 perr <= 'Z';\r
583 serr <= 'Z';\r
584 stop <= 'Z';\r
585 intb <= '0' when ( wb_int_i = '1' ) else 'Z';\r
586\r
587 \r
588end rtl;\r
589\r
590\r
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