
S3FM02G_USER'S GUIDE_REV 1.00
2 EVB DESCRIPTION
2-8
2.2.5 USART Block (LIN / RS-485 Include)
2.2.5.1 Features
Programmable baud rate generator
Parity, framing and overrun error detection
Idle flag for J1587 protocol
Line break generation and detection
Automatic echo, local loopback and remote loopback channel modes
Multi-drop mode: address detection and generation
Interrupt generation
2 dedicated LDMA channels per USART
5 to 9-bit character length
Configurable start bit of data transmission
Support the LIN protocol: LIN1.2 or LIN2.0 configurable release
Smart
–Card protocol: error signaling and re-transmission
Asynchronous mode maximum baud rate: PCLK/16
Synchronous mode maximum baud rate when providing SCK clock: PCLK/2
Synchronous mode maximum baud rate when receiving SCK clock: PCLK/4
Table 2-2 USART Pin Description
Pin Name
Function
I/O Type
Active Level
Comments
USARTTXD [3:0]
USART Transmit Data Line
O
–
–
USARTRXD [3:0]
USART Reception Data Line
I
–
–
USARTCLK [3:0]
USART transmission clock
Bi-Direction
–
–