NXP Semiconductors KE1xF Series, Reference Manual, Page: 1290 / 1483

• 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 7-bit, 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:
• Address mark matching
• Idle line address matching
• Address match start, address match end
• Optional 13-bit break character generation / 11-bit break character detection
• Configurable idle length detection supporting 1, 2, 4, 8, 16, 32, 64 or 128 idle
characters
• Selectable transmitter output and receiver input polarity
• Hardware flow control support for request to send (RTS) and clear to send (CTS)
signals
• Selectable IrDA 1.4 return-to-zero-inverted (RZI) format with programmable pulse
width
• Independent FIFO structure for transmit and receive
• Separate configurable watermark for receive and transmit requests
• Option for receiver to assert request after a configurable number of idle
characters if receive FIFO is not empty
48.2.2 Modes of operation
48.2.2.1 Stop mode
The LPUART will remain functional during Stop mode, provided the asynchronous
transmit and receive clock remains enabled. The LPUART can generate an interrupt or
DMA request to cause a wakeup from Stop mode.
Introduction
Kinetis KE1xF Sub-Family Reference Manual, Rev. 4, 06/2019
1290 NXP Semiconductors