Is'nt this (from memory) exactly how a 6402 UART works..? Just get a data sheet for a 6402 and it will show you all the timing diagrams for a uart. , , , I've seen things you people wouldn't believe. Attack ships on fire off the sholder of Orion. I watched C-beams glitter in the darkness at Tan Hauser Gate. All those moments will be lost in time, like tears in rain. Time to die. Remember now, watch out for the Fairies......!