16.2.2 Frame Format

Communication is based on frames, where the frame format can be customized to accommodate a wide range of standards. A frame consists of a start bit, a number of data bits, an optional parity bit for error detection as well as a configurable length stop bit(s) - see Figure 16-1. Table 16-1 shows the available parameters you can change in a frame.

Table 16-1. USART Frame Parameters

Parameter

Options

Start bit

1

Data bits

5, 6, 7, 8, 9

Parity bit

None, Even, Odd

Stop bits

1, 2

Figure 16-1. USART Frame Overview