38:
170:
2787:
817:
95:
1926:
A team of engineers at
Motorola Microsystems led by Jack Kister, designed a 68000 development system called the EXORmacs. The backplane of the EXORmacs was called VERSAbus. While coordinating the efforts of his team, Jack wrote a 41-page bus description of VERSAbus which was published in November of
485:
Address modifiers are used to divide the VME bus address space into several distinct sub-spaces. The address modifier is a 6 bit wide set of signals on the backplane. Address modifiers specify the number of significant address bits, the privilege mode (to allow processors to distinguish between bus
473:
A block transfer protocol allows several bus transfers to occur with a single address cycle. In block transfer mode, the first transfer includes an address cycle and subsequent transfers require only data cycles. The slave is responsible for ensuring that these transfers use successive addresses.
286:
John Black of
Motorola, Craig MacKenna of Mostek and Cecil Kaplinsky of Signetics developed the first draft of the VMEbus specification. In October 1981, at the System '81 trade show in Munich, West Germany, Motorola, Mostek, Signetics/Philips, and Thomson CSF announced their joint support of the
469:
In order to allow both bus widths, VME uses two different
Eurocard connectors, P1 and P2. P1 contains three rows of 32 pins each, implementing the first 24 address bits, 16 data bits and all of the control signals. P2 contains one more row, which includes the remaining 8 address bits and 16 data
308:
mm, fully electrically and mechanically compatible, VMEbus board co-chaired by Dale Young (DY4 Systems) and Doug
Patterson (Plessey Microsystems, then Radstone Technology). ANSI/IEEE-1101.2-1992 was later ratified and released in 1992 and remains in place as the conduction-cooled, international
477:
Bus masters can release the bus in two ways. With
Release When Done (RWD), the master releases the bus when it completes a transfer and must re-arbitrate for the bus before every subsequent transfer. With Release On Request (ROR), the master retains the bus by continuing to assert BBSY* between
282:
The architectural concepts of the VMEbus are based on VERSAbus, developed in the late 1970s by
Motorola. This was later renamed "VME", short for Versa Module European, by Lyman (Lym) Hevle, then a VP with the Motorola Microsystems Operation. (He was later the founder of the VME Marketing Group,
312:
In 1989, John Peters of
Performance Technologies Inc. developed the initial concept of VME64: multiplexing address and data lines (A64/D64) on the VMEbus. The concept was demonstrated the same year and placed in the VITA Technical Committee in 1990 as a performance enhancement to the VMEbus
258:
Over the years, many extensions have been added to the VME interface, providing 'sideband' channels of communication in parallel to VME itself. Some examples are IP Module, RACEway
Interlink, SCSA, Gigabit Ethernet on VME64x Backplanes, PCI Express, RapidIO, StarFabric and InfiniBand.
327:
VITA's application for recognition as an accredited standards developer organization of ANSI was granted in June 1993. Numerous other documents ( including mezzanine, P2 and serial bus standards) have been placed with VITA as the Public Domain
Administrator of these technologies.
254:
In the late 1990s, synchronous protocols proved to be favourable. The research project was called VME320. The VITA Standards
Organization called for a new standard for unmodified VME32/64 backplanes. The new 2eSST protocol was approved in ANSI/VITA 1.5 in 1999.
465:
Like the 68000, VME uses separate 32-bit data and address buses. The 68000 address bus is actually 24-bit and the data bus 16-bit (although it is 32/32 internally) but the designers were already looking towards a full 32-bit implementation.
125:
CPU, one of their engineers, Jack Kister, decided to set about creating a standardized bus system for 68000-based systems. The Motorola team brainstormed for days to select the name VERSAbus. VERSAbus cards were large, 370 by 230 mm
297:, the first conduction-cooled 6U VMEbus board. Although electrically providing a compliant VMEbus protocol interface, mechanically, this board was not interchangeable for use in air-cooled lab VMEbus development chassis.
478:
transfers. ROR allows the master to retain control over the bus until a Bus Clear (BCLR*) is asserted by another master that wishes to arbitrate for the bus. Thus a master that generates bursts of traffic can optimize
680:
and every card is a master or slave. In most bus standards, there is a considerable amount of complexity added in order to support various transfer types and master/slave selection. For instance, with the
212:
At this point, a number of other companies involved in the 68000's ecosystem agreed to use the standard, including Signetics, Philips, Thomson, and Mostek. Soon it was officially standardized by the
482:
performance by arbitrating for the bus on only the first transfer of each burst. This decrease in transfer latency comes at the cost of somewhat higher transfer latency for other masters.
324:
sub-buses for use as I/O interconnections and data mover subsystems. These architectures can be used as message switches, routers and small multiprocessor parallel architectures.
3081:
486:
accesses by user-level or system-level software), and whether or not the transfer is a block transfer. Below is an incomplete table of address modifiers:
4006:
4001:
3996:
3991:
3986:
3981:
3976:
462:
and other "anti-features". The result is that, while VME is very 68000-like, the 68000 is generic enough to make this not an issue in most cases.
689:. This makes VME considerably simpler at a conceptual level while being more powerful, though it requires more complex controllers on each card.
766:
182:
3245:
3288:
720:
190:
2782:
Interfaces are listed by their speed in the (roughly) ascending order, so the interface at the end of each section should be the fastest.
300:
In late 1987, a technical committee was formed under VITA under the direction of IEEE to create the first military, conduction-cooled 6U
4056:
2227:
1856:
186:
3922:
3663:
3658:
3648:
3643:
3638:
3633:
3628:
3623:
3613:
3608:
3603:
3598:
3588:
3583:
3578:
3573:
3558:
3553:
3548:
3543:
3538:
2755:
685:, both of these features had to be added alongside the existing "channels" model, whereby all communications was handled by the host
213:
2821:
2384:
2022:
419:
401:
2247:
427:
409:
383:
4156:
2054:
251:, smaller 'IP' cards that plug into a single VMEbus card, and various interconnect standards for linking VME systems together.
197:
standard that was then late in the standardization process. The result was first known as VERSAbus-E but was later renamed to
1919:
2435:
2106:
4092:
4082:
2141:
2931:
2488:
2327:
2257:
3357:
2876:
2317:
864:
705:
are tools that collect, analyze, decode, store signals so people can view the high-speed waveforms at their leisure.
81:
59:
846:
52:
2415:
194:
185:
designed the first VERSAmodule card, the VERSAbus Adaptor Module, used to run existing cards on the new VERSAbus.
3056:
756:
3338:
2207:
842:
3313:
2759:
2410:
2379:
2032:
697:
When developing and/or troubleshooting the VME bus, examination of hardware signals can be very important.
3293:
2814:
2357:
227:
connectors. However, there have been several updates to the system to allow wider bus widths. The current
3722:
3283:
2986:
2901:
2881:
2683:
2622:
2477:
4125:
2854:
2830:
2282:
2047:
1911:
316:
In 1993, new activities began on the base-VME architecture, involving the implementation of high-speed
2652:
789:
4166:
3692:
2891:
2337:
1866:
708:
VITA offers a comprehensive FAQ to assist with the front end design and development of VME systems.
3126:
827:
46:
17:
4161:
4151:
4130:
2991:
2981:
2961:
2807:
2790:
2765:
2657:
2312:
838:
831:
799:
686:
3303:
2864:
2347:
63:
4097:
3220:
2956:
2611:
2564:
2420:
2192:
2040:
1861:
726:
3363:
3111:
3041:
2607:
2460:
2342:
677:
8:
2519:
2074:
3121:
2063:
177:
Kister was later joined by John Black, who refined the specifications and created the
3794:
3789:
3769:
3753:
3747:
3742:
3737:
3732:
3727:
3717:
3712:
3702:
3697:
3333:
3203:
3163:
2509:
2131:
2067:
1915:
193:
of Motorola-Europe added a mechanical specification to the system, basing it on the
3687:
3353:
2242:
1831:
98:
VME64 crate with, from left, an ADC module, a scaler module and a processor module
3116:
2372:
2222:
2202:
2077:
698:
391:
159:
287:
VMEbus. They also placed Revision A of the specification in the public domain.
3971:
3101:
3096:
3016:
2966:
2673:
2367:
2292:
2217:
2121:
2096:
779:
750:
459:
444:
283:
itself subsequently renamed to VME International Trade Association, or VITA).
155:
122:
2027:
4145:
4077:
4021:
4016:
4011:
3961:
3956:
3951:
3941:
3917:
3893:
3881:
3870:
3859:
3847:
3842:
3837:
3832:
3819:
3808:
3298:
3278:
3131:
3106:
3036:
2926:
2871:
2745:
2632:
2524:
2472:
2455:
2237:
2136:
2126:
2101:
2062:
1908:
The System engineer's handbook: a guide to building VMEbus and VXIbus systems
244:
4061:
4051:
3799:
3784:
3779:
3774:
3764:
3707:
3348:
3343:
3328:
3323:
3318:
3268:
2482:
2425:
2277:
2182:
702:
321:
169:
110:
3933:
3673:
3427:
3308:
3273:
3263:
3240:
3235:
3230:
3225:
3208:
3193:
2750:
2729:
2647:
2492:
2430:
2405:
2332:
2116:
2111:
1970:
746:
270:. The VMEbus had a strong influence on many later computer buses such as
2569:
4046:
4041:
3373:
3255:
3188:
3183:
3178:
3173:
3168:
3158:
2603:
2302:
2091:
1851:
772:
317:
443:
In many ways the VMEbus is equivalent or analogous to the pins of the
4107:
4087:
3945:
3198:
3091:
3086:
3071:
3061:
3051:
3031:
3026:
3011:
3001:
2996:
2976:
2971:
2951:
2946:
2941:
2936:
2921:
2886:
2627:
2617:
2584:
2579:
2514:
2389:
2177:
2162:
2157:
1846:
761:
448:
163:
816:
3378:
3150:
3141:
2859:
2849:
2844:
2637:
2574:
2307:
2167:
1948:
793:
240:
216:
as the IEC 821 VMEbus and by ANSI and IEEE as ANSI/IEEE 1014-1987.
2017:
1885:
4102:
3898:
3864:
3813:
3758:
3653:
3618:
3593:
3568:
3563:
3533:
3528:
3523:
3517:
3511:
3506:
3501:
3496:
3490:
3484:
3479:
3474:
3469:
3463:
3457:
3452:
3447:
3442:
3387:
3021:
3006:
2799:
2770:
2724:
2708:
2534:
2352:
2297:
2232:
2187:
740:
723:
682:
291:
2000:
From Table 7 - 2 J2/P2 Pin Assignments, ANSI/VITA 1-1994 (R2002)
1991:
From Table 7 - 1 J1/P1 Pin Assignments, ANSI/VITA 1-1994 (R2002)
1818:
P2 rows a and c can be used by a secondary bus, for example the
239:
in 3U cards. The VME64 protocol has a typical performance of 40
3965:
3437:
3432:
3422:
3417:
3412:
3407:
3402:
3397:
3392:
3066:
2703:
2594:
2559:
2554:
2549:
2544:
2362:
2212:
2172:
1819:
783:
455:
271:
263:
236:
232:
220:
2688:
2599:
792:
including Professional IRIS, Personal IRIS, Power Series, and
3823:
3678:
3213:
3076:
2916:
2698:
2589:
2529:
2467:
2440:
2322:
2272:
2197:
735:
731:
294:
3046:
2911:
2906:
2693:
2678:
2539:
2450:
2445:
2287:
262:
VMEbus was also used to develop closely related standards,
2642:
2267:
2262:
1841:
1836:
267:
224:
94:
2012:
454:
However, one of the key features of the 68000 is a flat
243:/s. Other associated standards have added hot-swapping (
27:
Computer bus standard physically based on Eurocard sizes
669:
as in A16, A24, A32 refers to the width of the address
1927:
1979. The first EXORmacs was shipped in January 1980.
181:
product concept. A young engineer working for Black,
223:bus, designed to fit within the existing Eurocard
4143:
158:. Only a few products adopted it, including the
2385:Coherent Accelerator Processor Interface (CAPI)
767:Advanced Numerical Research and Analysis Group
290:In 1985, Aitech developed, under contract for
2815:
2048:
113:standard physically based on Eurocard sizes.
845:. Unsourced material may be challenged and
711:
2822:
2808:
2055:
2041:
1971:"HP VME Products - Alimar Technology Corp"
1943:
1941:
1939:
1937:
1935:
865:Learn how and when to remove this message
82:Learn how and when to remove this message
168:
93:
45:This article includes a list of general
641:A32 non-privileged instruction access.
638:Extended Non-privileged Program access
627:Extended Non-privileged Block transfer
553:A24 instruction access, non-privileged
550:Standard Non-privileged Program access
542:A24 block transfer for normal programs
539:Standard Non-privileged block transfer
14:
4144:
1932:
373:
357:
2803:
2036:
1905:
649:Extended non-privileged data access.
309:standard for all 6U VMEbus products.
877:Seen looking into backplane socket.
843:adding citations to reliable sources
810:
692:
605:Extended supervisory Program access
594:Extended supervisory Block transfer
561:Standard non-privileged Data Access
517:Standard Supervisory Program access
506:Standard Supervisory block transfer
31:
790:Silicon Graphics MIPS-based systems
630:A32 non-privileged block transfer.
608:A32 privileged instruction access.
520:A24 instruction access, privileged
121:In 1979, during development of the
24:
2829:
676:On the VME bus, all transfers are
616:Extended supervisory Data Access.
277:
166:robot and machine vision systems.
51:it lacks sufficient corresponding
25:
4178:
2006:
2786:
2785:
815:
716:Computers using VMEbus include:
652:A32 non-privileged data access.
564:A24 data access, non-privileged
528:Standard Supervisor Data Access
36:
775:ES1000 Rapid Prototyping System
597:A32 privileged block transfer.
509:Block transfer A24, privileged
1994:
1985:
1963:
1899:
1878:
438:
205:(although some refer to it as
162:instrument controller and the
13:
1:
4157:Experimental particle physics
2380:Intel Ultra Path Interconnect
1872:
784:Data General AViiON computers
351:VMEbus32 Parallel Bus Rev. A
2358:Intel QuickPath Interconnect
2348:Direct Media Interface (DMI)
619:A32 privileged data access.
583:Short non-privileged Access
531:A24 data access, privileged
219:The original standard was a
7:
1906:Black, John Arthur (1992).
1825:
586:A16 non-privileged access.
10:
4183:
4126:IEEE Standards Association
2343:Compute Express Link (CXL)
2028:VME bus pinout and signals
1951:. Vita.com. 3 January 1999
235:bus in 6U-sized cards and
116:
4116:
4070:
4034:
3932:
3672:
3372:
3254:
3149:
3140:
2837:
2779:
2738:
2717:
2666:
2580:IEEE-1284 (parallel port)
2502:
2495:logical device interface)
2398:
2150:
2084:
1867:List of device bandwidths
806:
572:Short supervisory Access
712:Computers using a VMEbus
203:VERSAmodule Eurocard bus
4131:Category:IEEE standards
800:Convergent Technologies
743:Industrial Workstations
575:A16 privileged access.
66:more precise citations.
2142:List of bus bandwidths
458:memory model, free of
174:
99:
2018:VMEBUS TECHNOLOGY FAQ
727:Single-board computer
346:Maximum speed (MB/s)
172:
107:Versa Module Eurocard
97:
2585:IEEE-1394 (FireWire)
2323:PCI Extended (PCI-X)
1949:"VME Technology FAQ"
839:improve this section
173:VERSAbus memory card
154: in), and used
2426:Parallel ATA (PATA)
2023:Next Generation VME
460:memory segmentation
333:
207:Versa Module Europa
2333:PCI Express (PCIe)
331:
175:
100:
4139:
4138:
4030:
4029:
2797:
2796:
2783:
2510:Apple Desktop Bus
2487:PCI Express (via
2446:Serial ATA (SATA)
2132:Network on a chip
1921:978-0-12-102820-6
1816:
1815:
1347:
1346:
875:
874:
867:
693:Development tools
674:
673:
436:
435:
367:VMEbus IEEE-1014
332:Evolution of VME
92:
91:
84:
16:(Redirected from
4174:
4167:68k architecture
3147:
3146:
2824:
2817:
2810:
2801:
2800:
2789:
2788:
2781:
2243:HP Precision Bus
2057:
2050:
2043:
2034:
2033:
2001:
1998:
1992:
1989:
1983:
1982:
1980:
1978:
1973:. Alimartech.com
1967:
1961:
1960:
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1903:
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1892:
1882:
1832:Data acquisition
1352:
1351:
883:
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870:
863:
859:
856:
850:
819:
811:
489:
488:
393:
375:
359:
334:
330:
307:
303:
231:includes a full
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152:
148:
145:
139:
138:
134:
131:
87:
80:
76:
73:
67:
62:this article by
53:inline citations
40:
39:
32:
21:
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4142:
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4135:
4112:
4066:
4026:
3928:
3676:
3668:
3376:
3368:
3250:
3136:
2833:
2828:
2798:
2793:
2784:
2775:
2734:
2713:
2662:
2575:IEEE-488 (GPIB)
2498:
2394:
2373:Infinity Fabric
2203:Europe Card Bus
2146:
2080:
2061:
2009:
2004:
1999:
1995:
1990:
1986:
1976:
1974:
1969:
1968:
1964:
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1922:
1914:. p. 563.
1912:Morgan Kaufmann
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1828:
871:
860:
854:
851:
836:
820:
809:
714:
699:Logic analyzers
695:
668:
447:run out onto a
441:
313:specification.
305:
301:
280:
278:VME early years
160:IBM System 9000
156:edge connectors
150:
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141:
136:
132:
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127:
119:
88:
77:
71:
68:
58:Please help to
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41:
37:
28:
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22:
15:
12:
11:
5:
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4162:IEEE standards
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4152:Computer buses
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3405:
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3361:
3351:
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3326:
3321:
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3276:
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3201:
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3114:
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3034:
3029:
3024:
3019:
3014:
3009:
3004:
2999:
2994:
2989:
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2979:
2974:
2969:
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2919:
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2909:
2904:
2899:
2894:
2889:
2884:
2879:
2874:
2869:
2868:
2867:
2857:
2852:
2847:
2841:
2839:
2835:
2834:
2831:IEEE standards
2827:
2826:
2819:
2812:
2804:
2795:
2794:
2780:
2777:
2776:
2774:
2773:
2768:
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2727:
2721:
2719:
2715:
2714:
2712:
2711:
2706:
2701:
2696:
2691:
2686:
2684:Intel HD Audio
2681:
2676:
2674:ADAT Lightpipe
2670:
2668:
2664:
2663:
2661:
2660:
2655:
2650:
2645:
2640:
2635:
2630:
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2408:
2402:
2400:
2396:
2395:
2393:
2392:
2387:
2382:
2377:
2376:
2375:
2368:HyperTransport
2365:
2360:
2355:
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2345:
2340:
2335:
2330:
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2320:
2315:
2310:
2305:
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2255:
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2245:
2240:
2235:
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2205:
2200:
2195:
2190:
2185:
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2165:
2160:
2154:
2152:
2148:
2147:
2145:
2144:
2139:
2134:
2129:
2124:
2122:Bus contention
2119:
2114:
2109:
2104:
2099:
2097:Front-side bus
2094:
2088:
2086:
2082:
2081:
2078:computer buses
2060:
2059:
2052:
2045:
2037:
2031:
2030:
2025:
2020:
2015:
2008:
2007:External links
2005:
2003:
2002:
1993:
1984:
1962:
1931:
1920:
1898:
1876:
1874:
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1131:
1128:
1125:
1121:
1120:
1117:
1114:
1111:
1107:
1106:
1103:
1100:
1097:
1093:
1092:
1089:
1086:
1083:
1079:
1078:
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1069:
1065:
1064:
1061:
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1044:
1041:
1037:
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1027:
1023:
1022:
1019:
1016:
1013:
1009:
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1005:
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994:
991:
988:
985:
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977:
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949:
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921:
918:
915:
911:
910:
907:
904:
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897:
896:
893:
890:
887:
873:
872:
823:
821:
814:
808:
805:
804:
803:
797:
786:
780:Motorola 88000
776:
770:
764:
759:
753:
751:Atari MEGA STE
744:
738:
729:
713:
710:
694:
691:
672:
671:
666:
662:
660:
654:
653:
650:
647:
643:
642:
639:
636:
632:
631:
628:
625:
621:
620:
617:
614:
610:
609:
606:
603:
599:
598:
595:
592:
588:
587:
584:
581:
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570:
566:
565:
562:
559:
555:
554:
551:
548:
544:
543:
540:
537:
533:
532:
529:
526:
522:
521:
518:
515:
511:
510:
507:
504:
500:
499:
496:
493:
440:
437:
434:
433:
430:
425:
422:
416:
415:
412:
407:
404:
398:
397:
394:
389:
386:
380:
379:
376:
371:
368:
364:
363:
360:
355:
352:
348:
347:
344:
341:
338:
279:
276:
123:Motorola 68000
118:
115:
90:
89:
44:
42:
35:
26:
9:
6:
4:
3:
2:
4179:
4168:
4165:
4163:
4160:
4158:
4155:
4153:
4150:
4149:
4147:
4132:
4129:
4127:
4124:
4122:
4119:
4118:
4115:
4109:
4106:
4104:
4101:
4099:
4096:
4094:
4091:
4089:
4086:
4084:
4081:
4079:
4076:
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4033:
4023:
4020:
4018:
4015:
4013:
4010:
4008:
4005:
4003:
4000:
3998:
3995:
3993:
3990:
3988:
3985:
3983:
3980:
3978:
3975:
3973:
3970:
3967:
3963:
3960:
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3900:
3896:
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3869:
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3806:
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3798:
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3600:
3597:
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3567:
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3550:
3547:
3545:
3542:
3540:
3537:
3535:
3532:
3530:
3527:
3525:
3522:
3520:
3519:
3515:
3513:
3510:
3508:
3505:
3503:
3500:
3498:
3495:
3493:
3492:
3488:
3486:
3483:
3481:
3478:
3476:
3473:
3471:
3468:
3466:
3465:
3461:
3459:
3456:
3454:
3451:
3449:
3446:
3444:
3441:
3439:
3436:
3434:
3431:
3429:
3426:
3424:
3421:
3419:
3416:
3414:
3411:
3409:
3406:
3404:
3401:
3399:
3396:
3394:
3391:
3389:
3386:
3385:
3383:
3380:
3375:
3371:
3365:
3362:
3359:
3355:
3352:
3350:
3347:
3345:
3342:
3340:
3337:
3335:
3332:
3330:
3327:
3325:
3322:
3320:
3317:
3315:
3312:
3310:
3307:
3305:
3302:
3300:
3297:
3295:
3292:
3290:
3287:
3285:
3282:
3280:
3277:
3275:
3272:
3270:
3267:
3265:
3262:
3261:
3259:
3257:
3253:
3247:
3244:
3242:
3239:
3237:
3234:
3232:
3229:
3227:
3224:
3222:
3219:
3215:
3214:WiMAX · d · e
3212:
3211:
3210:
3207:
3205:
3202:
3200:
3197:
3195:
3192:
3190:
3187:
3185:
3182:
3180:
3177:
3175:
3172:
3170:
3167:
3165:
3162:
3160:
3157:
3156:
3154:
3152:
3148:
3145:
3143:
3139:
3133:
3130:
3128:
3125:
3123:
3120:
3118:
3115:
3113:
3110:
3108:
3105:
3103:
3100:
3098:
3095:
3093:
3090:
3088:
3085:
3083:
3080:
3078:
3075:
3073:
3070:
3068:
3065:
3063:
3060:
3058:
3055:
3053:
3050:
3048:
3045:
3043:
3040:
3038:
3035:
3033:
3030:
3028:
3025:
3023:
3020:
3018:
3015:
3013:
3010:
3008:
3005:
3003:
3000:
2998:
2995:
2993:
2990:
2988:
2985:
2983:
2980:
2978:
2975:
2973:
2970:
2968:
2965:
2963:
2960:
2958:
2955:
2953:
2950:
2948:
2945:
2943:
2940:
2938:
2935:
2933:
2930:
2928:
2925:
2923:
2920:
2918:
2915:
2913:
2910:
2908:
2905:
2903:
2900:
2898:
2895:
2893:
2890:
2888:
2885:
2883:
2880:
2878:
2875:
2873:
2870:
2866:
2863:
2862:
2861:
2858:
2856:
2853:
2851:
2848:
2846:
2843:
2842:
2840:
2836:
2832:
2825:
2820:
2818:
2813:
2811:
2806:
2805:
2802:
2792:
2778:
2772:
2769:
2767:
2764:
2761:
2757:
2754:
2752:
2749:
2747:
2746:Multidrop bus
2744:
2743:
2741:
2737:
2731:
2728:
2726:
2723:
2722:
2720:
2716:
2710:
2707:
2705:
2702:
2700:
2697:
2695:
2692:
2690:
2687:
2685:
2682:
2680:
2677:
2675:
2672:
2671:
2669:
2665:
2659:
2656:
2654:
2653:External PCIe
2651:
2649:
2646:
2644:
2641:
2639:
2636:
2634:
2633:Parallel SCSI
2631:
2629:
2626:
2624:
2621:
2619:
2616:
2613:
2609:
2605:
2601:
2598:
2596:
2593:
2591:
2588:
2586:
2583:
2581:
2578:
2576:
2573:
2571:
2568:
2566:
2563:
2561:
2558:
2556:
2553:
2551:
2548:
2546:
2543:
2541:
2538:
2536:
2533:
2531:
2528:
2526:
2525:Commodore bus
2523:
2521:
2518:
2516:
2513:
2511:
2508:
2507:
2505:
2501:
2494:
2490:
2486:
2484:
2481:
2479:
2476:
2474:
2473:Fibre Channel
2471:
2469:
2466:
2462:
2459:
2457:
2454:
2453:
2452:
2449:
2447:
2444:
2442:
2439:
2437:
2434:
2432:
2429:
2427:
2424:
2422:
2419:
2417:
2414:
2412:
2409:
2407:
2404:
2403:
2401:
2397:
2391:
2388:
2386:
2383:
2381:
2378:
2374:
2371:
2370:
2369:
2366:
2364:
2361:
2359:
2356:
2354:
2351:
2349:
2346:
2344:
2341:
2339:
2336:
2334:
2331:
2329:
2326:
2324:
2321:
2319:
2316:
2314:
2311:
2309:
2306:
2304:
2301:
2299:
2296:
2294:
2291:
2289:
2286:
2284:
2281:
2279:
2276:
2274:
2271:
2269:
2266:
2264:
2261:
2259:
2256:
2254:
2251:
2249:
2246:
2244:
2241:
2239:
2236:
2234:
2231:
2229:
2226:
2224:
2221:
2219:
2216:
2214:
2211:
2209:
2206:
2204:
2201:
2199:
2196:
2194:
2191:
2189:
2186:
2184:
2181:
2179:
2176:
2174:
2171:
2169:
2166:
2164:
2161:
2159:
2156:
2155:
2153:
2149:
2143:
2140:
2138:
2137:Plug and play
2135:
2133:
2130:
2128:
2127:Bus mastering
2125:
2123:
2120:
2118:
2115:
2113:
2110:
2108:
2105:
2103:
2102:Back-side bus
2100:
2098:
2095:
2093:
2090:
2089:
2087:
2083:
2079:
2076:
2072:
2070:
2065:
2058:
2053:
2051:
2046:
2044:
2039:
2038:
2035:
2029:
2026:
2024:
2021:
2019:
2016:
2014:
2011:
2010:
1997:
1988:
1972:
1966:
1950:
1944:
1942:
1940:
1938:
1936:
1928:
1923:
1917:
1913:
1909:
1902:
1887:
1886:"VMEbus FAQa"
1881:
1877:
1868:
1865:
1863:
1860:
1858:
1855:
1853:
1850:
1848:
1845:
1843:
1840:
1838:
1835:
1833:
1830:
1829:
1823:
1821:
1812:User Defined
1811:
1808:
1806:User Defined
1805:
1802:
1801:
1798:User Defined
1797:
1794:
1792:User Defined
1791:
1788:
1787:
1784:User Defined
1783:
1780:
1778:User Defined
1777:
1774:
1773:
1770:User Defined
1769:
1766:
1764:User Defined
1763:
1760:
1759:
1756:User Defined
1755:
1752:
1750:User Defined
1749:
1746:
1745:
1742:User Defined
1741:
1738:
1736:User Defined
1735:
1732:
1731:
1728:User Defined
1727:
1724:
1722:User Defined
1721:
1718:
1717:
1714:User Defined
1713:
1710:
1708:User Defined
1707:
1704:
1703:
1700:User Defined
1699:
1696:
1694:User Defined
1693:
1690:
1689:
1686:User Defined
1685:
1682:
1680:User Defined
1679:
1676:
1675:
1672:User Defined
1671:
1668:
1666:User Defined
1665:
1662:
1661:
1658:User Defined
1657:
1654:
1652:User Defined
1651:
1648:
1647:
1644:User Defined
1643:
1640:
1638:User Defined
1637:
1634:
1633:
1630:User Defined
1629:
1626:
1624:User Defined
1623:
1620:
1619:
1616:User Defined
1615:
1612:
1610:User Defined
1609:
1606:
1605:
1602:User Defined
1601:
1598:
1596:User Defined
1595:
1592:
1591:
1588:User Defined
1587:
1584:
1582:User Defined
1581:
1578:
1577:
1574:User Defined
1573:
1570:
1568:User Defined
1567:
1564:
1563:
1560:User Defined
1559:
1556:
1554:User Defined
1553:
1550:
1549:
1546:User Defined
1545:
1542:
1540:User Defined
1539:
1536:
1535:
1532:User Defined
1531:
1528:
1526:User Defined
1525:
1522:
1521:
1518:User Defined
1517:
1514:
1512:User Defined
1511:
1508:
1507:
1504:User Defined
1503:
1500:
1498:User Defined
1497:
1494:
1493:
1490:User Defined
1489:
1486:
1484:User Defined
1483:
1480:
1479:
1476:User Defined
1475:
1472:
1470:User Defined
1469:
1466:
1465:
1462:User Defined
1461:
1458:
1456:User Defined
1455:
1452:
1451:
1448:User Defined
1447:
1444:
1442:User Defined
1441:
1438:
1437:
1434:User Defined
1433:
1430:
1428:User Defined
1427:
1424:
1423:
1420:User Defined
1419:
1416:
1414:User Defined
1413:
1410:
1409:
1406:User Defined
1405:
1402:
1400:User Defined
1399:
1396:
1395:
1392:User Defined
1391:
1388:
1386:User Defined
1385:
1382:
1381:
1378:User Defined
1377:
1374:
1372:User Defined
1371:
1368:
1367:
1363:
1360:
1357:
1354:
1353:
1350:
1342:
1339:
1336:
1333:
1332:
1328:
1325:
1322:
1319:
1318:
1314:
1311:
1308:
1305:
1304:
1300:
1297:
1294:
1291:
1290:
1286:
1283:
1280:
1277:
1276:
1272:
1269:
1266:
1263:
1262:
1258:
1255:
1252:
1249:
1248:
1244:
1241:
1238:
1235:
1234:
1230:
1227:
1224:
1221:
1220:
1216:
1213:
1210:
1207:
1206:
1202:
1199:
1196:
1193:
1192:
1188:
1185:
1182:
1179:
1178:
1174:
1171:
1168:
1165:
1164:
1160:
1157:
1154:
1151:
1150:
1146:
1143:
1140:
1137:
1136:
1132:
1129:
1126:
1123:
1122:
1118:
1115:
1112:
1109:
1108:
1104:
1101:
1098:
1095:
1094:
1090:
1087:
1084:
1081:
1080:
1076:
1073:
1070:
1067:
1066:
1062:
1059:
1056:
1053:
1052:
1048:
1045:
1042:
1039:
1038:
1034:
1031:
1028:
1025:
1024:
1020:
1017:
1014:
1011:
1010:
1006:
1003:
1000:
997:
996:
992:
989:
986:
983:
982:
978:
975:
972:
969:
968:
964:
961:
958:
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954:
950:
947:
944:
941:
940:
936:
933:
930:
927:
926:
922:
919:
916:
913:
912:
908:
905:
902:
899:
898:
894:
891:
888:
885:
884:
881:
878:
869:
866:
858:
848:
844:
840:
834:
833:
829:
824:This section
822:
818:
813:
812:
801:
798:
795:
791:
787:
785:
781:
777:
774:
771:
768:
765:
763:
760:
758:
754:
752:
748:
745:
742:
739:
737:
733:
730:
728:
725:
722:
719:
718:
717:
709:
706:
704:
703:bus analyzers
700:
690:
688:
684:
679:
670:
663:
661:
659:
656:
655:
651:
648:
645:
644:
640:
637:
634:
633:
629:
626:
623:
622:
618:
615:
612:
611:
607:
604:
601:
600:
596:
593:
590:
589:
585:
582:
579:
578:
574:
571:
568:
567:
563:
560:
557:
556:
552:
549:
546:
545:
541:
538:
535:
534:
530:
527:
524:
523:
519:
516:
513:
512:
508:
505:
502:
501:
497:
494:
491:
490:
487:
483:
481:
475:
471:
467:
463:
461:
457:
452:
450:
446:
431:
429:
426:
423:
421:
418:
417:
413:
411:
408:
405:
403:
400:
399:
395:
390:
387:
385:
382:
381:
377:
372:
369:
366:
365:
361:
356:
353:
350:
349:
345:
342:
339:
336:
335:
329:
325:
323:
319:
314:
310:
298:
296:
293:
288:
284:
275:
273:
269:
265:
260:
256:
252:
250:
246:
245:plug-and-play
242:
238:
234:
230:
226:
222:
217:
215:
210:
208:
204:
200:
196:
192:
188:
184:
180:
171:
167:
165:
161:
157:
124:
114:
112:
108:
104:
96:
86:
83:
75:
65:
61:
55:
54:
48:
43:
34:
33:
30:
19:
4120:
3916:
3892:
3858:
3807:
3752:
3516:
3489:
3462:
2896:
2278:TURBOchannel
2252:
2068:
1996:
1987:
1975:. Retrieved
1965:
1953:. Retrieved
1925:
1907:
1901:
1889:. Retrieved
1880:
1817:
1348:
879:
876:
861:
852:
837:Please help
825:
715:
707:
696:
675:
664:
657:
498:Explanation
484:
479:
476:
472:
468:
464:
453:
442:
326:
315:
311:
299:
289:
285:
281:
261:
257:
253:
248:
228:
218:
211:
206:
202:
198:
183:Julie Keahey
178:
176:
120:
111:computer bus
106:
102:
101:
78:
69:
50:
29:
3693:legacy mode
2751:CoreConnect
2730:ExpressCard
2658:Thunderbolt
2648:Camera Link
2431:Bus and Tag
2117:Address bus
2112:Control bus
2107:Daisy chain
802:MightyFrame
747:Atari TT030
439:Description
179:VERSAmodule
64:introducing
4146:Categories
4071:Superseded
3142:802 series
2604:ACCESS.bus
2503:Peripheral
2303:InfiniBand
2298:HP GSC bus
2092:System bus
1891:17 January
1873:References
1852:CompactPCI
1063:SYSRESET*
721:HP 743/744
343:Bus cycle
191:Max Loesel
109:bus) is a
72:April 2009
47:references
3946:Bluetooth
2565:Lightning
2515:Atari SIO
2390:SpaceWire
2223:Zorro III
2163:S-100 bus
2158:SS-50 bus
2151:Standards
2071:standards
2064:Technical
1847:Futurebus
1403:RESERVED
1326:+5VSTDBY
1197:IACKOUT*
1035:SYSFAIL*
826:does not
762:Symbolics
755:Motorola
495:Function
492:Hex Code
449:backplane
337:Topology
164:Automatix
4121:See also
4078:754-1985
4035:Proposed
3379:Ethernet
2865:Revision
2791:Category
2766:Wishbone
2739:Embedded
2718:Portable
2638:Profibus
2570:DMX512-A
2456:Parallel
2308:Ethernet
2218:Zorro II
2168:Multibus
2069:de facto
1977:1 August
1955:1 August
1826:See also
1200:SERDAT*
1183:IACKIN*
1046:BG3OUT*
1018:BG2OUT*
990:BG1OUT*
962:BG0OUT*
934:ACFAIL*
855:May 2020
778:Several
769:'s PACE.
734:through
322:parallel
195:Eurocard
187:Sven Rau
18:VERSAbus
4062:P1906.1
3923:Wi-Fi 8
3899:Wi-Fi 7
3865:Wi-Fi 6
3814:Wi-Fi 5
3759:Wi-Fi 4
2838:Current
2771:SLIMbus
2725:PC Card
2709:TOSLINK
2399:Storage
2353:RapidIO
2233:FASTBUS
2188:STD Bus
2085:General
1186:SERCLK
1113:DTACK*
1085:WRITE*
1077:LWORD*
1032:BG3IN*
1029:SYSCLK
1004:BG2IN*
976:BG1IN*
948:BG0IN*
847:removed
832:sources
796:systems
782:-based
741:HP 9000
724:PA-RISC
683:ISA bus
292:US Army
149:⁄
135:⁄
117:History
60:improve
3966:Zigbee
3934:802.15
3674:802.11
2912:1149.1
2704:S/PDIF
2595:1-Wire
2560:RS-485
2555:RS-423
2550:RS-422
2545:RS-232
2406:ST-506
2363:NVLink
2213:STEbus
2173:Unibus
1918:
1820:STEbus
1312:IRQ1*
1298:IRQ2*
1284:IRQ3*
1270:IRQ4*
1256:IRQ5*
1242:IRQ6*
1228:IRQ7*
1169:IACK*
1049:BERR*
920:BCLR*
906:BBSY*
807:Pinout
788:Early
470:bits.
456:32-bit
420:VME320
402:VME64x
318:serial
306:
302:
272:STEbus
264:VXIbus
249:VME64x
237:32-bit
233:64-bit
221:16-bit
201:, for
199:VMEbus
103:VMEbus
49:, but
4057:P1823
4052:P1699
4047:P1619
4042:P1363
3824:WiGig
3688:-1997
3679:Wi-Fi
3388:-1983
3374:802.3
3256:802.1
3132:42010
3127:29148
3122:16326
3117:16085
3112:14764
3107:12207
3102:11073
2699:McASP
2667:Audio
2612:SMBus
2608:PMBus
2590:UNI/O
2530:HP-IL
2483:SATAe
2468:ESCON
2441:HIPPI
2273:NuBus
2228:CAMAC
2198:Q-Bus
2193:SMBus
2178:VAXBI
2075:wired
1857:CAMAC
1329:+12V
1323:−12V
1102:BR3*
1088:BR2*
1074:BR1*
1071:DS0*
1060:BR0*
1057:DS1*
736:Sun-4
732:Sun-2
445:68000
428:2eSST
424:1997
410:2eVME
406:1997
388:1994
384:VME64
370:1987
354:1981
340:Year
304:× 160
295:TACOM
247:) in
229:VME64
4108:1471
4103:1364
4098:1362
4093:1233
4088:1219
3358:LACP
3097:2050
3092:2030
3087:1905
3082:1904
3077:1902
3072:1901
3067:1900
3062:1855
3057:1850
3052:1849
3047:1815
3042:1801
3037:1800
3032:1733
3027:1722
3022:1685
3017:1675
3012:1667
3007:1666
3002:1619
2997:1613
2992:1603
2987:1596
2982:1588
2977:1584
2972:1547
2967:1541
2962:1516
2957:1497
2952:1451
2947:1394
2942:1355
2937:1284
2932:1278
2927:1275
2922:1164
2917:1154
2907:1076
2902:1016
2897:1014
2892:1003
2756:AMBA
2694:MADI
2679:AES3
2540:MIDI
2493:NVMe
2489:AHCI
2451:SCSI
2436:DSSI
2411:ESDI
2288:SBus
2248:EISA
2183:MBus
2073:for
2066:and
2013:VITA
1979:2013
1957:2013
1916:ISBN
1893:2023
1862:FPDP
1809:+5V
1795:GND
1781:D31
1767:D30
1753:D29
1739:D28
1725:D27
1711:D26
1697:D25
1683:D24
1669:GND
1655:D23
1641:D22
1627:D21
1613:D20
1599:D19
1585:D18
1571:D17
1557:D16
1543:+5V
1529:GND
1515:A31
1501:A30
1487:A29
1473:A28
1459:A27
1445:A26
1431:A25
1417:A24
1389:GND
1375:+5V
1355:Pin
1343:+5V
1340:+5V
1337:+5V
1315:A08
1309:A01
1301:A09
1295:A02
1287:A10
1281:A03
1273:A11
1267:A04
1259:A12
1253:A05
1245:A13
1239:A06
1231:A14
1225:A07
1217:A15
1214:GND
1211:AM4
1203:A16
1189:A17
1175:A18
1172:GND
1161:A19
1158:AM3
1155:GND
1147:A20
1144:AM2
1141:AS*
1133:A21
1130:AM1
1127:GND
1119:A22
1116:AM0
1105:A23
1099:GND
1091:AM5
1043:GND
1021:GND
1015:GND
1007:D15
1001:D07
993:D14
987:D06
979:D13
973:D05
965:D12
959:D04
951:D11
945:D03
937:D10
931:D02
923:D09
917:D01
909:D08
903:D00
886:Pin
830:any
828:cite
794:Onyx
773:ETAS
757:MVME
749:and
701:and
658:Note
432:320
414:160
392:MBLT
320:and
266:and
189:and
4083:830
4007:.4z
4002:.4g
3997:.4f
3992:.4e
3987:.4d
3982:.4c
3977:.4b
3972:.4a
3299:Qbb
3294:Qaz
3289:Qay
3284:Qat
3279:Qav
3246:.24
3241:.22
3236:.21
3231:.20
3226:.18
3221:.17
3209:.16
3204:.14
3199:.12
3194:.10
3151:802
2887:896
2882:829
2877:828
2872:854
2860:754
2855:730
2850:693
2845:488
2760:AXI
2689:I²S
2643:USB
2628:D²B
2623:SPI
2618:I3C
2600:I²C
2535:HIL
2520:DCB
2491:or
2478:SSA
2461:SAS
2421:SMD
2416:IPI
2338:AGP
2328:PXI
2318:PCI
2313:UPA
2293:VLB
2283:MCA
2268:VPX
2263:VXS
2258:VXI
2253:VME
2238:LPC
2208:ISA
1842:VXS
1837:VPX
1803:32
1789:31
1775:30
1761:29
1747:28
1733:27
1719:26
1705:25
1691:24
1677:23
1663:22
1649:21
1635:20
1621:19
1607:18
1593:17
1579:16
1565:15
1551:14
1537:13
1523:12
1509:11
1495:10
1349:P2
1334:32
1320:31
1306:30
1292:29
1278:28
1264:27
1250:26
1236:25
1222:24
1208:23
1194:22
1180:21
1166:20
1152:19
1138:18
1124:17
1110:16
1096:15
1082:14
1068:13
1054:12
1040:11
1026:10
880:P1
841:by
687:CPU
678:DMA
646:09
635:0a
624:0b
613:0d
602:0e
591:0f
580:29
569:2d
558:39
547:3a
536:3b
525:3d
514:3e
503:3f
480:its
396:80
378:40
374:BLT
362:40
358:BLT
268:VPX
225:DIN
214:IEC
209:).
140:by
4148::
4022:.7
4017:.6
4012:.5
3962:.4
3957:.3
3952:.2
3942:.1
3918:bn
3913:bk
3910:bi
3907:bh
3904:bf
3894:be
3889:bd
3886:bc
3882:bb
3878:ba
3875:az
3871:ay
3860:ax
3855:aq
3852:ak
3848:aj
3843:ai
3838:ah
3833:af
3829:ae
3820:ad
3809:ac
3804:aa
3664:df
3659:de
3654:dd
3649:db
3644:da
3639:cz
3634:cy
3629:cx
3624:cw
3619:cv
3614:cu
3609:ct
3604:cs
3599:cr
3594:cq
3589:cp
3584:cn
3579:cm
3574:ck
3569:ch
3564:cg
3559:ce
3554:cd
3549:cc
3544:cb
3539:ca
3534:bz
3529:by
3524:bu
3518:bt
3512:ba
3507:az
3502:av
3497:au
3491:at
3485:aq
3480:an
3475:ak
3470:ah
3464:af
3458:ae
3453:ad
3448:ac
3443:ab
3364:BA
3354:AX
3349:AS
3344:aq
3339:ak
3334:ah
3329:ag
3324:AE
3319:ad
3314:AB
3189:.9
3184:.8
3179:.7
3174:.6
3169:.5
3164:.4
3159:.2
2610:,
2606:,
1934:^
1924:.
1910:.
1822:.
1481:9
1467:8
1453:7
1439:6
1425:5
1411:4
1397:3
1383:2
1369:1
1364:c
1361:b
1358:a
1012:9
998:8
984:7
970:6
956:5
942:4
928:3
914:2
900:1
895:c
892:b
889:a
451:.
274:.
241:MB
128:14
3968:)
3964:(
3948:)
3944:(
3925:)
3921:(
3901:)
3897:(
3867:)
3863:(
3826:)
3822:(
3816:)
3812:(
3800:z
3795:y
3790:w
3785:v
3780:u
3775:s
3770:r
3765:p
3761:)
3757:(
3754:n
3748:k
3743:j
3738:i
3733:h
3728:g
3723:f
3718:e
3713:d
3708:c
3703:b
3698:a
3681:)
3677:(
3438:z
3433:y
3428:x
3423:u
3418:j
3413:i
3408:e
3403:d
3398:b
3393:a
3381:)
3377:(
3360:)
3356:(
3309:X
3304:w
3274:Q
3269:p
3264:D
2823:e
2816:t
2809:v
2762:)
2758:(
2614:)
2602:(
2056:e
2049:t
2042:v
1981:.
1959:.
1895:.
868:)
862:(
857:)
853:(
849:.
835:.
667:n
665:A
151:4
147:1
144:+
142:9
137:2
133:1
130:+
126:(
105:(
85:)
79:(
74:)
70:(
56:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
