I/O Map
The following table lists the main I/O definitions of the Quest Super Elf in a simple configuration, using a hex keypad, Pixie (CDP 1861) video and speaker connected to the Q flag. Note that I/O would off course only work if specified HW is connected.
| Q | Speaker, where frequency of switching Q gives a square wave tone |
| EF1 | CDP 1861 display: display status |
| EF4 | If EF4=0 IN button is pressed |
| INP & OUT 1 | CDP 1861 display: display on |
| INP & OUT 2 | CDP 1861 display: display off |
| OUT 4 | TIL 311 data display |
| INP 4 | Hex panel input |
This configuration will run ElfOs.