let me clarify on that confusion a little bit: multiply the 32Khz clock present on the card there to generate the system clock (at x1/x2) of 8032. On second thoughts it would equally simple to add a 8251(usart) or similar. And A means asynchronous not unsynchronous that is the clocks are present but implicit/ internal. If the synchronous data is character oriented not frame, then this idea may work.