== ECB Bus Pin-Outs ==
The ECB Bus uses 3x32 pin connectors (96 pins), of which, usually on 2x32 (64 pins) are actually used (the middle row is used only for newer "16bit" cards. On normal cards usually 2x32 (64 pins) are connected.
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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, -12V, RESET are mapped to the "wrong" pin numbers, -12V complies with some ECB variants, and some non-ECB signals SOUND, CURSOR, LPEN, EXP, ROMEN, ROMDIS, RAMRD, RAMDIS, BUSRESET are added, and, UBAT is listed as 5V in Schneiderware (normally it should be 2V..3V). 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 ==