31.5.1 Baud Rate Generator

The baud rate generator provides the bit period clock named baud rate clock to the receiver.

The baud rate clock is the 32.768 kHz clock from the crystal oscillator, divided by 16 times the value (CD) written in the Baud Rate Generator register (RXLP_BRGR). If RXLP_BRGR is set to 0, the baud rate clock is disabled and the RXLP remains inactive. The maximum allowable baud rate is 32.768 kHz clock divided by 16. The minimum allowable baud rate is 32.768 kHz clock divided by (16 × 3).

Baud Rate = \frac{f_{32.768 kHz clock}}{16 \times CD}