Information

• Transmitter data buffer at or below watermark
• Transmission complete
• Receiver data buffer at or above watermark
• Idle receiver input
• Receiver data buffer overrun
• Receiver data buffer underflow
• Transmit data buffer overflow
• Noise error
• Framing error
• Parity error
• Active edge on receive pin
• LIN break detect
• Receiver framing error detection
• Hardware parity generation and checking
• 1/16 bit-time noise detection
• DMA interface
45.1.2 Modes of operation
The UART functions in the same way in all the normal modes.
It has the following two low power modes:
• Wait mode
• Stop mode
45.1.2.1 Run mode
This is the normal mode of operation.
Chapter 45 Universal Asynchronous Receiver/Transmitter (UART)
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
Freescale Semiconductor, Inc. 1041