ETAS ES584.1, Руководство пользователя

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ES584.1 – User’s Guide 18
ETAS Hardware Description
3.6 LIN Interface
The LIN interface is electrically isolated from the other interfaces of the module
and also protected against overload or misuse.
3.6.1 Operating Modes
The two clients of the LIN interface (see chapter "Multi-Client Support"
on page 21) can either be operated in the LIN master operating mode or in the
LIN slave operating mode. The following configurations are possible:
• Client 1: LIN master or LIN slave and
• Client 2: LIN slave
The operating mode is selected in the application software.
3.6.2 Feature
The LIN applications supported by the module are listed in an overview in chapter
6.7.2 on page 39.
3.6.3 Voltage Supply on the LIN Bus
LIN_GND
9
3
7
LIN LIN_UBATT DSUB-9
Fig. 3-3 Voltage supply on the LIN bus (pin assignment on the CBCF100
cable)
12 V LIN systems
In 12 V LIN systems, the LIN node of the ES584.1 module can either be supplied
externally by the LIN bus or internally by the module with the LIN reference volt-
age V
BAT
.
24 V LIN systems
In 24 V LIN systems, the LIN node of the ES584.1 module can only be supplied
externally by the LIN bus with the LIN reference voltage VBAT.
Supplying external LIN nodes
The module is not designed for the supply of external nodes on the LIN bus.
Selecting the voltage supply
An internal pull-up resistance can be switched to the LIN interface of the module
as master resistance. Switching of the master resistance of the LIN interface can
be configured in the application software.