Figure 266. Usart Interrupt Mapping Diagram - ST STM32L0x3 Reference Manual

RM0367
Idle line detected
Parity error
LIN break
Noise Flag, Overrun error and Framing Error in multibuffer
communication.
Character match
Receiver timeout
End of Block
Wakeup from Stop mode
1. The WUF interrupt is active only in Stop mode.
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/UART)
Table 146. USART interrupt requests (continued)
Interrupt event

Figure 266. USART interrupt mapping diagram

TC
TCIE
TXE
TXEIE
CTSIF
CTSIE
IDLE
IDLEIE
RXNEIE
ORE
RXNEIE
RXNE
PE
PEIE
LBDF
LBDIE
FE
NF
EIE
ORE
CMF
CMIE
RTOF
RTOIE
EOBF
EOBIE
WUF
WUFIE
RM0367 Rev 7
Enable Control
Event flag
IDLE
PE
LBDF
NF or ORE or FE
CMF
RTOF
EOBF
(1)
WUF WUFIE
Figure
bit
IDLEIE
PEIE
LBDIE
EIE
CMIE
RTOIE
EOBIE
266).
USART
interrupt
MSv19820V1
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