3.8 Input/Output Peripheral – Component 7

Purpose of the test: Verify that input/output is as expected and that signals are correctly routed.

Analog and/or digital I/O is needed in all applications and can be used to detect faulty operation in either the peripherals or in the MCU itself.

The acceptable measure for Fault detection is plausibility checking, which means that the software verifies that it is getting the expected input and giving the desired output at any given time.