User Manual
643
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
LIN Transceiver
20
LIN Transceiver
20.1
Features
General Functional Features
• Compliant to LIN2.2 Standard, backward compatible to LIN1.3, LIN2.0 and LIN 2.1
• Compliant to SAE J2602 (Slew Rate, Receiver hysteresis)
Special Features
• Measurement of LIN Master baudrate via Timer 2
• LIN can be used as Input/Output with SFR bits.
• TxD Timeout Feature (optional, on by default)
• Overcurrent limitation and overtemperature protection
• LIN module fully resettable via global enable bit
Operation Modes Features
• LIN Sleep Mode (LSLM)
• LIN Receive-Only Mode (LROM)
• LIN Normal Mode (LNM)
• High Voltage Input / Output Mode (LHVIO)
Slope Modes Features
• Normal Slope Mode (20 kbit/s)
• Low Slope Mode (10.4 kbit/s)
• Fast Slope Mode (62.5 kbit/s)
• Flash Mode (115 kbit/s, 250 kbit/s)
Wake-Up Features
• LIN Bus wake-up. The wake-up happens on the falling edge of the LIN signal, to allow wake-up and
decoding of the same frame. It is possible to enter the sleep mode also with LIN dominant (e.g. caused by
LIN shorted to GND).
20.2
Introduction
The LIN Module is a transceiver for the Local Interconnect Network (LIN) compliant to the LIN2.2 Standard,
backward compatible to LIN1.3, LIN2.0 and LIN2.1. It operates as a bus driver between the protocol controller
and the physical network. The LIN bus is a single wire, bi-directional bus typically used for in-vehicle networks,
using baud rates between 2.4 kBaud and 20 kBaud. Additionally baud rates up to 62.5 kBaud are
implemented.
The LIN Module offers several different operation modes, including a LIN Sleep Mode and the LIN Normal
Mode. The integrated slope control allows to use several data transmission rates with optimized EMC
performance. For data transfer at the end of line, a Flash Mode up to 115 kBaud is implemented. This Flash