1 Manchester Coding Convention

Manchester coding uses logic transitions from ‘0’ to ‘1’ or from ‘1’ to ‘0’ for representing the ‘0’ and ‘1’ bits. There are two coding conventions, presented in the figure below:

Figure 1-1. Manchester Coding Convention

DALI-2 standard uses IEEE 802.3 Manchester convention. This document presents the system composed of PIC16F1779 and DALI-2 click board. This DALI-2 click board uses inverting thermocouples; therefore, the microcontroller implements the inverted Manchester convention.

Figure 1-2. PIC16F1779 and DALI-2 Click Board DALI-2 System