3 Technical Description
G PCIe 6281
14
3.5 Onboard Interfaces
The
G PCIe 6281
Multibus Controller offers the possibility to use a total of eight Automotive Bus interfaces. For
each bus (CAN/ CAN FD, LIN/ K-Line, FlexRay and Automotive Ethernet), transceivers are available that can be
replaced with little effort in accordance with the test requirement (see
). It also sup-
ports up to eight conventional signals (digital in/ out and SENT), four as input and four as output. Each transceiv-
er type is coded and uniquely identifiable. Detailed information about the interfaces and how they are supported
can be found on the following pages in the corresponding chapters.
The interfaces are generally supplied with an
internal 12V voltage
(VBAT
int
). The supply can also be done exter-
nally (further details for the different interfaces can be found in the respective section). Please note that the ex-
ternal power supply always affects the two transceivers connected to one
VBAT
ext
Transceiver
VBAT
ext
0
TRX1/2
VBAT
ext
1
TRX3/4
VBAT
ext
2
TRX5/6
VBAT
ext
3
TRX7/8
Table 3.8 Assignment of transceivers to VBAT
ext
Due to the large number of possible variants, how the various bus interfaces can be connected to the transceiv-
er slots some variants were defined in order to be able to handle these on the firmware side. The
G PCIe 6281
Multibus Controller can be equipped with these variants. On the software side the transceiver slots all have a
unique assignment via which the interfaces are addressed. The interface options supported by the firmware vari-
ants can be found in the following table:
Variant 1
Variant 2
Slot
Bus Interface
Software Interface
Bus Interface
Software Interface
1
CAN_1
ID 1
LIN_1
ID 9
2
CAN_2
ID 2
LIN_2
ID 10
3
CAN_3
ID 3
LIN_3
ID 11
4
CAN_4
ID 4
LIN_4
ID 12
5
CAN_5
ID 5
LIN_5
ID 13
6
CAN_6
ID 6
LIN_6
ID 14
7
CAN_7 or
Ethernet_2
ID 7 (CAN) or
ID 41
LIN_7 or
Ethernet_2
ID 15 (LIN) or
ID 41
8
CAN_8 or
Ethernet_3
ID 8 (CAN) or
ID 42
LIN_8 or
Ethernet_3
ID 16 (LIN) or
ID 42
Host
Ethernet_1
ID 40
Ethernet_1
ID 40
Table 3.9 Interface options of the firmware variants
if you have any questions about the firmware variants.
