i'm a software guy trying to solve a little A/D problem i have... i hve a daq that has a small number of I/O's and i have an A/D that i need to get data from. is there a chip in existence that can stream over one data line? my idea was to use one line to use as the data stream and the other line to step through the A/D value. so if the output is 110101 i could change the state of a control line and when that state changes, the bit stream line would represent the next bit. does this exist? and if so how does it work... does the control line listen for just a state change or only when it goes from low to high thanks everyone in advnace!!