Figure 407. Usart Interrupt Mapping Diagram - ST STM32L4x6 Reference Manual

RM0351
The USART interrupt events are connected to the same interrupt vector (see
•
During transmission: Transmission Complete, Clear to Send, Transmit data Register
empty or Framing error (in Smartcard mode) interrupt.
•
During reception: Idle Line detection, Overrun error, Receive data register not empty,
Parity error, LIN break detection, Noise Flag, Framing Error, Character match, etc.
These events generate an interrupt if the corresponding Enable Control Bit is set.
Universal synchronous asynchronous receiver transmitter (USART)

Figure 407. USART interrupt mapping diagram

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Figure 407).
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