com com is there a hardware standard help i need to implement com and com on a board that i m designing and i m finding it dificult to track down a definition hardware that is of com and com i have the io adresses and the fact that com shares irq with com and com shares irq with com except exactly how this irq sharing is done is not clear especially if the existing com does not allow irq sharing does the standard allow for a different irq to be used and if so how please answer by email to neil stone oz au thanks in advance neil watkinson
