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/* History */
[[Category:Electronic Component]]
== Intro ==
== History ==
The ECB bus was invented in 1977 by the german German company Kontron. '''ECB''' originally stands for "Einfach Europaformat Computer Baugruppen" (Simple or Single Europaformat Computer Modules; where "Europaformat" refers to a standarized circuit board size of 160x100mm160×100mm). ECB is sometimes also referred to as "Europa Bus" or "Europe Card Bus".
Aside from Kontron, other companies like J&K, o+r, ELZET80, Conitec, E-Lab, Marflow, and miro also invented different ECB-bus variants. The CPC Schneiderware series also invented a new variant. There is also an extended 16bit variant (for 68000 processors or so).
Signals in brackets "(...)" aren't available on all ECB variants; the Schneiderware series doesn't support those signals. Moreover, the Schneiderware pin-outs are somewhat customized: Signals HALT, M1, INT, are mapped to wrong pin numbers, -12V complies with some ECB variants, and some non-ECB signals SOUND, CURSOR, LPEN, EXP, ROMEN, ROMDIS, RAMRD, RAMDIS are added, and, UBAT is listed as 5V in Schneiderware (normally it should be 2V..3V) (though UBAT isn't actually used/connected on the Schneiderware boards). Aside from the +5V, +12V, -12V supply voltages, the Schneiderware motherboard also has an "AC" soldering point; it's voltage/purpose and it's ECB-pin number are unknown -- it might possibly refer to the ACCU battery (rather than to a analog current AC voltage). The CPC's two Reset signals (BUSRESET and RESET) are mapped to the corresponding ECB-locations (not sure if they are assigned correctly, or if they should be exchanged with each other).
== Files Documents ==
* [[Media:ECB Bus - Pinout Variants.pdf|ECB Bus - Pinout Variants.pdf]] - comparision of various eight different ECB variants (by Tilmann Reh)* [[Media:Schneiderware Basisplatine Pinouts.png|Schneiderware Basisplatine Pinouts.png]] - the Schneiderware ECB Bus variant
== Weblinks ==
