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Introduction and Features
1623
SPNU563A–March 2018
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Copyright © 2018, Texas Instruments Incorporated
Serial Communication Interface (SCI)/ Local Interconnect Network (LIN)
Module
29.1.2 LIN Features
The following are the features of the LIN module:
• Compatibility with LIN 1.3, 2.0, and 2.1protocols
• Configurable Baud Rate up to 20 Kbits/s
• Two external pins: LINRX and LINTX.
• Multi-buffered receive and transmit units
• Identification masks for message filtering
• Automatic master header generation
– Programmable synchronization break field
– Synchronization field
– Identifier field
• Slave automatic synchronization
– Synchronization break detection
– Optional baud rate update
– Synchronization validation
• 2
31
programmable transmission rates with 7 fractional bits
• Wakeup on LINRX dominant level from transceiver
• Automatic wakeup support
– Wakeup signal generation
– Expiration times on wakeup signals
• Automatic bus idle detection
• Error detection
– Bit error
– Bus error
– No-response error
– Checksum error
– Synchronization field error
– Parity error
• Capability to use Direct Memory Access (DMA) for transmit and receive data.
• 2 Interrupt lines with priority encoding for:
– Receive
– Transmit
– ID, error, and status
• Support for LIN 2.0 checksum
• Enhanced synchronizer finite state machine (FSM) support for frame processing
• Enhanced handling of extended frames
• Enhanced baud rate generator
• Update wakeup/go to sleep
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