Appendix C
Specifications of the input and output devices
Summary
Device: Toggle Switches
Data port address: SWS = 0x90
Function:
This device is a bank of eight toggle switches. When the data port SWS is read, this device returns a byte of data each bit of which indicates the state of a switch. The current value of the data port is shown in the ‘Output’ box. A switch toggles when clicked.
Example:
Device: Keypad
| Data port address: |
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