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PCIe/104 and PCI/104-Express Specification Revision 3.0 February 17, 2015 Page 58

A.1 Bridge Module Configurations

The PCI-to-ISA Bridge module has three possible configurations: Basic, Stack-UP only, and Stack-DOWN Only.

Because of the heights of the Q2 (PCI/104-Express and PCIe/104) connectors and the ISA Bus (PC/104-Plus) connector

and because they reside in the same general location, interference can occur if a PCI-to-ISA Bridge module is placed next

to PCI/104-Express or PCIe/104 module.. In this case a Stack-UP Only or a Stack-DOWN Only version must be used. If

there is a PCI-104 module between the PCI-to-ISA Bridge module and a PCI/104-Express or PCIe/104 module then a

Basic configuration can be used.

Figure 6-19: Basic Configuration of the PCI-to-ISA Bridge Module

Figure 6-20: Stack-DOWN Configuration of the PCI-to-ISA Bridge Module

Figure 6-21: Stack-UP Configuration of the PCI-to-ISA Bridge Module

A.2 Stack Configuration Examples

PC/104-Plus Brid

e Module

PCI Device

PCI

ISA

PC/104-Plus Brid

e Module

PCI Device

PCI

ISA

PC/104-Plus Brid

e Module

PCI Device

PCI

ISA

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Maxim /MAX4889A Spezifikationen Seite 69