TMC211 DATASHEET (V. 1.04 / January 7, 2005)
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6 LIN Interface
6.1 General Description
The LIN (Local Interconnect Network) is a serial communication protocol that is used mainly for
distributed mechatronic systems in automotive applications. The LIN implementation in the TMC211
corresponds to one slave node which follows to LIN specification rev. 1.2.
Features:
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•
•
•
•
•
•
•
•
Single master / multiple-slave communication
Self synchronizing slave nodes / no quartz or ceramics resonator necessary
Deterministic latency times for signal transmission
Single-wire communication
Transmission speed 19.2 kbit/s
Selectable length of Message Frame: 2, 4, and 8 bytes
Configuration flexibility
Data checksum security and error detection
Detection of defective nodes in the network
For more information about the LIN protocol please refer to the official website and the LIN Protocol
Specification. Both can be found at http://www.lin-subbus.org/.
6.2 Physical Layer
The physical layer is a single wire with pull-up resistor in every node. The bus is directly powered from
the vehicle power net Vbb.
Vbb
INH
Wake-Up
R
to 5V
INH Ctrl
regulator
R=30K
Ω
R
Receiver
EN
RxD
LIN
LIN Protocol
Handler
to control
block
Driver +
Slope Control
TxD
HW0
HW1
HW2
Figure 14: LIN Physical Layer
Copyright © 2004-2005 TRINAMIC Motion Control GmbH & Co. KG
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
