PPT Slide
7 – Sequential Logic Examples
Door combination lock:
- punch in 3 values in sequence and the door opens; if there is an error the lock must be reset; once the door opens the lock must be reset
- inputs: sequence of input values, reset
- outputs: door open/close
- memory: must remember combination or always have it available
- open questions: how do you set the internal combination?
- stored in registers (how loaded?)
- hardwired via switches set by user