10 sw4: pci interrupt routing select, 11 sw3: pci voltage level selection – ADLINK ETX-BT User Manual

Page 37

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Page 37

6.10 SW4: PCI Interrupt Routing Select

Standard PCI routing is compliant with ETX specification rev 3.02, as below

In some cases (e.g. real time OS) PCI routing needs to be modified. This can be done with
the SW4 switch. Note that ABCD is the default, standard ETX compliant setting

Switch Settings

PCI IRQ

Postion 1

Postion 2

Comment

ABCD ON OFF default

DABC ON

ON

CDAB OFF OFF

BCDA OFF

ON

6.11 SW3: PCI Voltage Level Selection

Switch Settings

PCIR

Postion 1

Postion 2

Comment

+5V ON OFF default

3.3V OFF ON

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