NXP Semiconductors K32 L2A Series, Reference Manual, Page: 807 / 1379

Chapter 31
Low Power Universal Asynchronous Receiver/
Transmitter (LPUART)
31.1 Introduction
31.1.1 Features
Features of the LPUART module include:
• Full-duplex, standard non-return-to-zero (NRZ) format
• Programmable baud rates (13-bit modulo divider) with configurable oversampling
ratio from 4x to 32x
• Transmit and receive baud rate can operate asynchronous to the bus clock:
• Baud rate can be configured independently of the bus clock frequency
• Supports operation in Stop modes
• Interrupt, DMA or polled operation:
• Transmit data register empty and transmission complete
• Receive data register full
• Receive overrun, parity error, framing error, and noise error
• Idle receiver detect
• Active edge on receive pin
• Break detect supporting LIN
• Receive data match
• Hardware parity generation and checking
• Programmable 8-bit, 9-bit or 10-bit character length
• Programmable 1-bit or 2-bit stop bits
• Three receiver wakeup methods:
• Idle line wakeup
• Address mark wakeup
• Receive data match
• Automatic address matching to reduce ISR overhead:
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 807