22:
89:
The ICU was conceived by Vern
Gregory in the mid-1970s while working as an engineer in a marketing / applications group of Motorola Semiconductor Products Sector in Phoenix, Arizona, USA; Brian Dellande originated circuit and sub-routine designs, and co-wrote the manual; Ray DiSilvestro was the bench
595:
318:
Ludwig, Volker; Paschenda, Klaus; Schepers, Heinz; Terglane, Hermann-Josef; Grannemann, Klaus; John, Burkhard; Komar, Hermann; Meinersen, Ludwig (1986). Written at Neuss & Recklinghausen, Germany.
208:(2+iii+106+1 pages) (NB. Also available in German language under the title "Motorola MC14500B Industrial Control Unit Handbuch - Theorie und Anwendung eines Ein-Bit-CMOS-Prozessors".)
588:
71:(PC); instead, a clock signal drives a separate PC chip; therefore the size of supported memory is dependent on the implementation of that chip. It was still in production in 1995.
191:
581:
294:
369:
67:, also intended for serial data manipulation. The processor supports 16 commands, operating at a frequency of 1 MHz. The MC14500B unit does not include a
236:
93:
In the CMOS Logic
Division in Austin, Texas, USA (where it was made) Phil Smith was the chip designer; Mike Hadley provided product applications support.
559:
206:
329:
474:
187:
180:
Motorola MC14500B Industrial
Control Unit Handbook - Theory and Operation of a CMOS one-bit processor compatible with B series CMOS devices
178:
1146:
1141:
411:
516:
281:
539:
451:
431:
75:
64:
501:
358:
984:
617:
112:
223:
177:
Gregory, Vernon "Vern" C.; Dellande, Brian; DiSilvestro, Ray; Malarkey, Terry; Smith, Phil; Hadley, Mike (1977).
957:
555:
866:
399:
573:
699:
752:
643:
604:
320:
290:
108:
482:
747:
254:
147:
37:
794:
789:
784:
779:
774:
152:
101:
A form of the design served as an embedded controller in a custom automotive chip made for
1059:
1043:
1038:
1033:
1016:
1011:
762:
689:
684:
679:
674:
669:
266:
68:
1075:
1026:
880:
875:
856:
851:
839:
804:
799:
742:
737:
732:
727:
722:
717:
712:
707:
365:
40:
1135:
1003:
947:
932:
656:
651:
407:
520:
473:
Schembri, Thierry; Bizoirre, Sylvain; Boisseau, Olivier; Chauvaud, Pierre-Emmanuel.
1111:
1021:
927:
918:
908:
899:
662:
157:
102:
56:
447:
913:
904:
842:
135:
535:
427:
1106:
937:
923:
384:
131:
124:
130:
A modern take, in retro style, of a computer based on this processor is the
123:
One of the computers known to be based on this processor is the educational
1096:
497:
556:"A one-bit processor explained: reverse-engineering the vintage MC14500B"
232:
44:
890:
827:
822:
21:
1101:
111:
manufactured a clone of the MC14500B with the designation βP14500 in
78:
942:
814:
60:
20:
1116:
965:
34:
577:
390:
Ludwig, Volker; Paschenda, Klaus, Remmelmann, Alexander (ed.),
765:
138:
so anyone can learn from its design and can freely build it.
218:
216:
214:
90:
technician; Terry
Malarkey provided management support.
55:
MC14500B (ICU) is well-suited to the implementation of
605:
Motorola-Freescale-NXP processors and microcontrollers
231:. Semiconductor Technical Data (revision 3 ed.).
127:-bit computer (512 bits of RAM, LED, I/O, keyboard).
1089:
1068:
1052:
993:
956:
889:
865:
838:
813:
761:
698:
642:
626:
74:The ICU architecture is similar to that of the
589:
8:
115:technology (rather than the original CMOS).
979:
612:
596:
582:
574:
134:. It is certified as Open Source Hardware
47:for simple control applications in 1977.
398:] (TV series (6 parts)) (in German),
357:Gregory, Vernon "Vern" C. (1979-05-08) .
392:Bit und Byte - Wir bauen einen Computer
328:(in German). Neuss, Germany: DATANorf.
169:
16:1-bit industrial control microprocessor
322:Fast alles über den WDR-1-Bit-Computer
262:
252:
7:
188:Motorola Semiconductor Products Inc.
59:, and thus could be used to replace
280:Cracea, Dumitru; Raiu, Dan (1990).
33:Industrial Control Unit (ICU) is a
396:Bit and Byte - We build a computer
386:(also: US 05/761,738; DE2801853A1)
14:
283:Full Line Condensed Catalog 1990
225:Industrial Control Unit MC14500B
562:from the original on 2022-06-17
554:Shirriff, Ken (February 2021).
542:from the original on 2017-05-20
504:from the original on 2017-05-20
454:from the original on 2017-03-20
434:from the original on 2017-05-20
414:from the original on 2017-08-03
375:from the original on 2022-06-17
335:from the original on 2017-05-20
300:from the original on 2022-05-11
242:from the original on 2017-05-20
197:from the original on 2022-02-20
25:1-bit microprocessor MC14500BCP
359:"Industrial control processor"
65:programmable logic controllers
1:
408:"The famous/infamous MC14500"
1163:
519:. Wikichip. Archived from
235:. 1995. pp. 306–313.
1147:Motorola microcontrollers
982:
978:
615:
611:
406:Mueller, Dieter (2005) .
1142:Motorola microprocessors
536:"MC14500 ISA - Motorola"
448:"A MC14500 modification"
446:Mueller, Dieter (2008).
428:"MC14500 and arithmetic"
426:Mueller, Dieter (2008).
867:Memory management units
627:Industrial control unit
26:
517:"MC14500B - Motorola"
24:
498:"MC14500 - Motorola"
475:"WDR-1-Bit Computer"
368:US patent 4153942A.
105:by Motorola—Japan.
400:WDR-Schulfernsehen
148:WDR paper computer
27:
1129:
1128:
1125:
1124:
974:
973:
479:OLD-COMPUTERS.COM
1154:
986:Microcontrollers
980:
613:
598:
591:
584:
575:
570:
568:
567:
550:
548:
547:
531:
529:
528:
512:
510:
509:
493:
491:
490:
481:. Archived from
462:
460:
459:
442:
440:
439:
422:
420:
419:
402:
383:
381:
380:
374:
363:
344:
343:
341:
340:
334:
327:
315:
309:
308:
306:
305:
299:
291:I.P.R.S. Băneasa
288:
277:
271:
270:
264:
260:
258:
250:
248:
247:
241:
230:
220:
209:
205:
203:
202:
196:
185:
174:
153:WDR Computerclub
109:I.P.R.S. Băneasa
1162:
1161:
1157:
1156:
1155:
1153:
1152:
1151:
1132:
1131:
1130:
1121:
1085:
1064:
1048:
989:
970:
952:
885:
861:
834:
809:
763:Embedded system
757:
694:
638:
622:
607:
602:
565:
563:
553:
545:
543:
534:
526:
524:
515:
507:
505:
496:
488:
486:
472:
469:
457:
455:
445:
437:
435:
425:
417:
415:
405:
389:
378:
376:
372:
361:
356:
353:
351:Further reading
348:
347:
338:
336:
332:
325:
317:
316:
312:
303:
301:
297:
286:
279:
278:
274:
261:
251:
245:
243:
239:
228:
222:
221:
212:
200:
198:
194:
183:
176:
175:
171:
166:
144:
121:
99:
87:
69:program counter
53:
17:
12:
11:
5:
1160:
1158:
1150:
1149:
1144:
1134:
1133:
1127:
1126:
1123:
1122:
1120:
1119:
1114:
1109:
1104:
1099:
1093:
1091:
1087:
1086:
1084:
1083:
1082:
1081:
1072:
1070:
1066:
1065:
1063:
1062:
1056:
1054:
1050:
1049:
1047:
1046:
1041:
1036:
1031:
1030:
1029:
1024:
1014:
1009:
1006:
1001:
997:
995:
991:
990:
983:
976:
975:
972:
971:
969:
968:
962:
960:
954:
953:
951:
950:
945:
940:
935:
930:
921:
916:
911:
902:
896:
894:
887:
886:
884:
883:
878:
872:
870:
863:
862:
860:
859:
854:
848:
846:
840:Floating-point
836:
835:
833:
832:
831:
830:
819:
817:
811:
810:
808:
807:
802:
797:
792:
787:
782:
777:
771:
769:
759:
758:
756:
755:
750:
745:
740:
735:
730:
725:
720:
715:
710:
704:
702:
696:
695:
693:
692:
687:
682:
677:
672:
667:
666:
665:
654:
648:
646:
640:
639:
637:
636:
630:
628:
624:
623:
616:
609:
608:
603:
601:
600:
593:
586:
578:
572:
571:
551:
532:
513:
494:
468:
467:External links
465:
464:
463:
443:
423:
403:
387:
366:Motorola, Inc.
352:
349:
346:
345:
310:
272:
210:
168:
167:
165:
162:
161:
160:
155:
150:
143:
140:
120:
117:
98:
95:
86:
83:
52:
49:
41:microprocessor
15:
13:
10:
9:
6:
4:
3:
2:
1159:
1148:
1145:
1143:
1140:
1139:
1137:
1118:
1115:
1113:
1110:
1108:
1105:
1103:
1100:
1098:
1095:
1094:
1092:
1088:
1080:DSPcontroller
1079:
1078:
1077:
1074:
1073:
1071:
1067:
1061:
1058:
1057:
1055:
1051:
1045:
1042:
1040:
1037:
1035:
1032:
1028:
1025:
1023:
1020:
1019:
1018:
1015:
1013:
1010:
1007:
1005:
1002:
999:
998:
996:
992:
988:
987:
981:
977:
967:
964:
963:
961:
959:
955:
949:
946:
944:
941:
939:
936:
934:
931:
929:
925:
922:
920:
917:
915:
912:
910:
906:
903:
901:
898:
897:
895:
892:
888:
882:
879:
877:
874:
873:
871:
868:
864:
858:
855:
853:
850:
849:
847:
844:
841:
837:
829:
826:
825:
824:
821:
820:
818:
816:
812:
806:
803:
801:
798:
796:
793:
791:
788:
786:
783:
781:
778:
776:
773:
772:
770:
767:
764:
760:
754:
751:
749:
746:
744:
741:
739:
736:
734:
731:
729:
726:
724:
721:
719:
716:
714:
711:
709:
706:
705:
703:
701:
697:
691:
688:
686:
683:
681:
678:
676:
673:
671:
668:
664:
660:
659:
658:
655:
653:
650:
649:
647:
645:
641:
635:
632:
631:
629:
625:
621:
620:
614:
610:
606:
599:
594:
592:
587:
585:
580:
579:
576:
561:
557:
552:
541:
537:
533:
523:on 2017-05-20
522:
518:
514:
503:
499:
495:
485:on 2017-05-20
484:
480:
476:
471:
470:
466:
453:
449:
444:
433:
429:
424:
413:
409:
404:
401:
397:
393:
388:
385:
371:
367:
360:
355:
354:
350:
331:
324:
323:
314:
311:
296:
292:
285:
284:
276:
273:
268:
256:
238:
234:
227:
226:
219:
217:
215:
211:
207:
193:
189:
182:
181:
173:
170:
163:
159:
156:
154:
151:
149:
146:
145:
141:
139:
137:
133:
132:PLC14500-Nano
128:
126:
118:
116:
114:
110:
106:
104:
96:
94:
91:
84:
82:
80:
77:
72:
70:
66:
62:
58:
50:
48:
46:
42:
39:
36:
32:
23:
19:
1112:PowerPC 5000
985:
843:coprocessors
700:68000 family
663:Hitachi 6309
633:
618:
564:. Retrieved
544:. Retrieved
538:. Wikichip.
525:. Retrieved
521:the original
506:. Retrieved
500:. Wikichip.
487:. Retrieved
483:the original
478:
456:. Retrieved
436:. Retrieved
416:. Retrieved
395:
391:
377:. Retrieved
337:. Retrieved
321:
313:
302:. Retrieved
282:
275:
244:. Retrieved
224:
199:. Retrieved
190:33-B78/8.0.
179:
172:
158:NDR computer
129:
122:
119:Notable uses
107:
103:Nippon Denso
100:
92:
88:
73:
63:systems and
57:ladder logic
54:
43:designed by
30:
28:
18:
644:6800 family
263:|work=
97:Derivatives
1136:Categories
1107:PowerQUICC
938:PowerQUICC
753:DragonBall
661:see also:
619:Processors
566:2022-06-17
546:2017-05-20
527:2017-05-20
508:2017-05-20
489:2017-05-20
458:2018-07-18
438:2018-07-18
418:2018-07-18
379:2022-06-17
339:2017-05-20
304:2022-06-17
246:2012-08-01
201:2017-05-20
164:References
85:Developers
81:computer.
1053:16/32-bit
1000:6801/6803
948:PPC e6500
933:PPC e5500
768:-variants
265:ignored (
255:cite book
1076:DSP568xx
924:PPC 74xx
919:PPC e500
900:PPC e200
748:ColdFire
560:Archived
540:Archived
502:Archived
452:Archived
432:Archived
412:Archived
370:Archived
330:Archived
295:Archived
237:Archived
233:Motorola
192:Archived
142:See also
136:PL000011
51:Overview
45:Motorola
31:MC14500B
914:PPC 7xx
905:PPC 6xx
891:PowerPC
828:MC88110
823:MC88100
805:68LC060
800:68EC060
795:68LC040
790:68EC040
785:68EC030
780:68EC020
775:68EC000
38:one-bit
1102:MPC5xx
1097:M·CORE
1090:32-bit
1069:24-bit
1044:68HC16
1039:68HC12
1034:68HC11
1017:68HC08
1012:68HC05
893:family
845:(FPUs)
690:68HC16
685:68HC12
680:68HC11
675:68HC08
670:68HC05
79:PDP-14
1060:683xx
994:8-bit
943:QorIQ
881:68851
876:68451
869:(MMU)
857:68882
852:68881
815:88000
743:68060
738:68040
733:68030
728:68020
723:68012
718:68010
713:68008
708:68000
634:14500
394:[
373:(PDF)
362:(PDF)
333:(PDF)
326:(PDF)
298:(PDF)
287:(PDF)
240:(PDF)
229:(PDF)
195:(PDF)
184:(PDF)
125:WDR 1
61:relay
1117:i.MX
1027:RS08
1008:6804
1004:6802
966:i.MX
928:e600
909:e300
657:6809
652:6800
267:help
35:CMOS
29:The
1022:S08
958:ARM
766:68k
113:IIL
76:DEC
1138::
558:.
477:.
450:.
430:.
410:.
364:.
293:.
289:.
259::
257:}}
253:{{
213:^
186:.
926:/
907:/
597:e
590:t
583:v
569:.
549:.
530:.
511:.
492:.
461:.
441:.
421:.
382:.
342:.
307:.
269:)
249:.
204:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
