Intel CONTROLLERS 413808 User Manual download pdf (Page 159)

e. Since non prefetchable memory windows can never be placed above the 4 Gbyte address boundary,

when the Prefetchable Indicator is cleared prior to host configuration, the user should also set the

Type Indicator for 32 bit addressability.

f. For compliance to the PCI-X Protocol Addendum to the PCI Local Bus Specification, Revision 2.0,

when the Prefetchable Indicator is set prior to host configuration, the user should also set the Type

Indicator for 64 bit addressability. This is the default for IABAR2.

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Intel CONTROLLERS 413808 User Manual Page 159