> > Of course its never that simple. Most "serial" busses are actually > > multiple wires which send information in parallel.. > > More likely > txdata > rxdata > Maybe a pair for the other direction (eg RS0232C) > Ground Actually RS232 has a whole array of wires sending information in parallel (think carrier, flow control, data in, data out, ...). Ethernet has a lot less but is only 1GBit. Internal busses like PCIE use multiple data links but are not parallel in the 'traditional' clocked sense Alan
