ETAS
Functional Description
ES595.1
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User Guide
26
Fig.
5
-
2
Power Supply at the LIN Bus
If there is no access or no possibility to use the LIN_UBATT voltage as refer
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ence and supply voltage, the LIN transceivers of the LIN node of the ES595.1
must be powered by a connectable internal power source of the module
1
. This
internal supply voltage is not routed out via the CAN1/LIN1 or CAN2/LIN2 con
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nectors. The ES595.1 is not designed to power external nodes at the LIN bus.
Internal pull-up resistances can be connected to the LIN interfaces of the
ES595.1 as master resistances. The connection of the master resistance of the
LIN interface can be configured in the application software.
2
5.9
FlexRay Interface (FLX1, FLX2)
The ES595.1 has one FlexRay interface with two channels which is routed to a
8-pin FLX1/ FLX2 connector (Lemo socket) on the front panel.
FLX1 and FLX2 are complete independent FlexRay channels with separated
connections. The FlexRay interfaces produce a simple and direct connection
between the ES595.1 and the FlexRay network.
The interfaces are galvanically isolated from each other and from the other
interfaces of the ES595.1.
5.9.1
Feature
You can find a list of FlexRay applications supported by the ES595.1 in chapter
8.8.2 on
49.
5.9.2
Bus Termination Resistor
The FlexRay specification makes it possible to create different bus topologies,
such as a passive bus, passive star or active star.
Each of the topologies requires the relevant bus termination. The FlexRay ter
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mination designated by the ETAS FlexRay specification is 100
Ohm. To support
the creation in FlexRay networks, ETAS provides FlexRay cables with corre
-
sponding FlexRay terminations. The termination has to be connected to the
cable or to the connector.
1.
INCA support in preparation.
2.
INCA support in preparation.
LIN_GND
9
3
7
LIN
LIN_UBATT
DSUB-9
