engr.waqas
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Considering the following scenario:
A designer wants to connect 3 devices on a PCIe x4 finger edge connector, commonly found on mother boards. All 3 devices will be populated on the same PCIe card. One device has 1 port of 2 lanes i.e (1 x2 PCIe port) Remaining two devices have 1 port of 1 lane (1 x1 PCIe port) each.
Scheme 1:
Scheme 2:
I've seen scheme 1 in the datasheets of some PCIe switches. I want to know if a PCIe switch is really required in this case.
What if we omit the switch and just split the PCIe lanes?
Will it be a legit PCIe network?
If yes then how will bus numbers be assigned?
Kindly ask if there is a need for clarification.
A designer wants to connect 3 devices on a PCIe x4 finger edge connector, commonly found on mother boards. All 3 devices will be populated on the same PCIe card. One device has 1 port of 2 lanes i.e (1 x2 PCIe port) Remaining two devices have 1 port of 1 lane (1 x1 PCIe port) each.
Scheme 1:
Scheme 2:
I've seen scheme 1 in the datasheets of some PCIe switches. I want to know if a PCIe switch is really required in this case.
What if we omit the switch and just split the PCIe lanes?
Will it be a legit PCIe network?
If yes then how will bus numbers be assigned?
Kindly ask if there is a need for clarification.
