47.7.9 LIN Mode

The LIN mode provides host node and client node connectivity on a LIN bus.

The LIN (Local Interconnect Network) is a serial communication protocol which efficiently supports the control of mechatronic nodes in distributed automotive applications.

The main properties of the LIN bus are:

• Single host/multiple clients concept
• Low-cost silicon implementation based on common UART/SCI interface hardware, an equivalent in software, or as a pure state machine.
• Self synchronization without quartz or ceramic resonator in the client nodes
• Deterministic signal transmission
• Low cost single-wire implementation
• Speed up to 20 kbit/s

LIN provides cost efficient bus communication where the bandwidth and versatility of CAN are not required.

The LIN mode enables processing LIN frames with a minimum of action from the microprocessor.