Peripherals 6
miriac SBC-LS1028A User Manual
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© MicroSys Electronics GmbH 2019
PCIe Root Complex / Endpoint
As mentioned in chapter 7.2 the switch SW2 can be used to change the
configuration of the SBC-
LS1028A from “Root Complex” to “Endpoint”.
Table 6-12 PCIe Root Complex / Endpoint
It is also necessary to adapt the software configuration of the two systems involved in
the setup.
By setting the
“Endpoint” mode without correct software configuration the behaviour
of the SBC-LS1028A may be unpredictable.
Mode
Description
„Root Complex“
(standard)
The CPU module is a PCIe Root Complex.
The SBC-LS1028A drives PCIe lanes and controls reset and clock to any
PCIe addin card plugged in ST7
„Endpoint“
The CPU module is a PCIe Endpoint.
The SBC-LS1028A expects to be controlled by any PCIe Root Complex
connected via ST7. This includes reset, clock and PCIe lanes.
