VME (VERSAmodule Eurocard) P2

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VME P2 - 96 pin DIN (41612, Type C) 3 rows x 32 pins VME P2 Connector - 96 pin DIN (41612, Type C) 3 rows x 32 pins [Pitch 2.54mm (.100”)] @ IEEE 1014-1987

VMEbus is a computer architecture. The term ‘VME’ stands for VERSAmodule Eurocard and was first coined in 1980 by the group of manufacturers who defined it. This group was composed of people from Motorola, Mostek and Signetics corporations who were cooperating to define the standard. The term ‘bus’ is a generic term describing a computer data path, hence the name VMEbus. Actually, the origin of the term ‘VME’ has never been formally defined. Other widely used definitions are VERSAbus-E, VERSAmodule Europe and VERSAmodule European. However, the term ‘Eurocard’ tends to fit better, as VMEbus was originally a combination of the VERSAbus electrical standard, and the Eurocard mechanical form factor. VERSAbus was first defined by Motorola Corporation in 1979 for its 68000 microprocessor.

Pin # Signal Name Signal Name Signal Name
Row A Row B Row C
1 User Defined +5v User Defined
2 User Defined GND User Defined
3 User Defined RETRY User Defined
4 User Defined A24 User Defined
5 User Defined A25 User Defined
6 User Defined A26 User Defined
7 User Defined A27 User Defined
8 User Defined A28 User Defined
9 User Defined A29 User Defined
10 User Defined A30 User Defined
11 User Defined A31 User Defined
12 User Defined GND User Defined
13 User Defined +5v User Defined
14 User Defined D16 User Defined
15 User Defined D17 User Defined
16 User Defined D18 User Defined
17 User Defined D19 User Defined
18 User Defined D20 User Defined
19 User Defined D21 User Defined
20 User Defined D22 User Defined
21 User Defined D23 User Defined
22 User Defined GND User Defined
23 User Defined D24 User Defined
24 User Defined D25 User Defined
25 User Defined D26 User Defined
26 User Defined D27 User Defined
27 User Defined D28 User Defined
28 User Defined D29 User Defined
29 User Defined D30 User Defined
30 User Defined D31 User Defined
31 User Defined GND User Defined
32 User Defined +5V User Defined

Notes

  • The VMEbus signal types are listed below:
    • Open collector signals which require Open Collector drivers and receivers: ACFail, BBSY, BERR, DTACK, IACK, SERDAT, SYSFAIL, SYSRESET, [IRQ1 - IRQ7], and [BR0 - BR3].
    • Three-State signals which require 3-State drivers and receivers: AS, DS0, DS1, DTACK, RETRY, IACK, LWORD, WRITE, [AM0 - AM5], [A01 - A31], and [D00 - D31].
    • Totem-Pole signals which require Totem-Pole drivers and receivers: BCLR, SYSCLK, SERCLK, IACKIN, IACKOUT, [BG0IN - BG3IN], [BG0OUT - BG3OUT].

References

Category:Buses Connectors

 

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