DocID024597 Rev 3 1221/1693
RM0351 Universal synchronous asynchronous receiver transmitter (USART)
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The USART interrupt events are connected to the same interrupt vector (see Figure 407).
• 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.
Figure 407. USART interrupt mapping diagram
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