Datasheet

XIO2213B

SCPS210F –OCTOBER 2008–REVISED MAY 2013

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3.3.4 PCIe Message Transactions

PCIe messages are both initiated and received by the bridge. Table 3-3 outlines message support within

the bridge.

Table 3-3. Messages Supported by Bridge

MESSAGE SUPPORTED BRIDGE ACTION

Assert_INTx Yes Transmitted upstream

Deassert_INTx Yes Transmitted upstream

PM_Active_State_Nak Yes Received and processed

PM_PME Yes Transmitted upstream

PME_Turn_Off Yes Received and processed

PME_TO_Ack Yes Transmitted upstream

ERR_COR Yes Transmitted upstream

ERR_NONFATAL Yes Transmitted upstream

ERR_FATAL Yes Transmitted upstream

Set_Slot_Power_Limit Yes Received and processed

Unlock No Discarded

Hot plug messages No Discarded

Advanced switching messages No Discarded

Vendor defined type 0 No Unsupported request

Vendor defined type 1 No Discarded

All supported message transactions are processed per the PCI Express Base Specification.

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