TMC211-PA20 TRINAMIC [TRINAMIC Motion Control GmbH & Co. KG.], TMC211-PA20 Datasheet - Page 25

• Manufacturer Part Number: TMC211-PA20
• Description: Micro Stepping Stepper Motor Controller / Driver with LIN Interface
• Manufacturer: TRINAMIC [TRINAMIC Motion Control GmbH & Co. KG.]

TMC211 DATASHEET (V. 1.04 / January 7, 2005)
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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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 V
Copyright © 2004-2005 TRINAMIC Motion Control GmbH & Co. KG
LIN
HW0
HW1
HW2
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
R=30KΩ
bb
.
V
bb
R
R
Figure 14: LIN Physical Layer
Driver +
Slope Control
Receiver
RxD
EN
TxD
LIN Protocol
Handler
Wake-Up
INH Ctrl
to control
block
regulator
to 5V
INH
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