Terms and Abbreviations

Table 1. Terms and Abbreviations
Phrase/Abbreviation Explanation
CPU Central Processing Unit. Commonly used for the microcontroller core.
ISR Interrupt Service Routine
Signal strobe Short pulse or signal
CCL LUT Configurable Custom Logic Look-up Table. The AVR CCL module contains LUTs.
Measurement window The set of positions that the encoder shall measure
Gray code A way of encoding a digital signal where only one bit in the signal value changes between two values in the signal sequence
Event Internal signal on the device that can be routed directly between peripherals by the Event System
RTC Real-Time Counter