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Circuit Description

A simple serial-in parallel-out shift-register.

Use mouse-clicks or type the bindkeys 'c' and 'd' to control the clock and data inputs.

All flipflops are connected to the same clock signal. We need no extra reset signal here, because new data is continually shifted into the register and the controller block guarantees that the output of this register is read-out in the correct moment.

The assignment of the output ports reflects the bit-order used by the RS-232 protocol, with the least-significant bit of the data transmitted first, followed by the next data bits, and finally the parity bit (if any).