10.07.2015 Views

Download - Intel

Download - Intel

Download - Intel

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

5.2 PCI Express Link Characteristics - Link Training,Bifurcation, Downgrading and Lane Reversal Support .............................................915.2.1 Link Training ..........................................................................................915.2.2 Port Bifurcation ......................................................................................915.2.2.1 Port Bifurcation via BIOS ............................................................915.2.3 Degraded Mode ......................................................................................925.2.4 PCI Express Port Mapping ........................................................................935.2.5 Lane Reversal ........................................................................................935.2.6 PCI Express Gen1/Gen2 Speed Selection....................................................945.2.7 Form-Factor Support ...............................................................................945.3 IOH Performance Policies ....................................................................................945.3.1 Max_Payload_size...................................................................................945.3.2 Virtual Channels .....................................................................................945.3.3 Non-Coherent Transaction Support............................................................945.3.3.1 Inbound ...................................................................................945.3.3.2 Outbound.................................................................................945.3.4 Completion Policy ...................................................................................945.3.4.1 Read Completion Combining .......................................................955.3.5 Read Prefetching Policies .........................................................................955.3.6 Error Reporting ......................................................................................955.3.7 <strong>Intel</strong> Chipset-Specific Vendor-Defined Messages..........................................955.3.7.1 ASSERT_GPE / DEASSERT_GPE ...................................................955.3.8 Configuration Retry Completions ...............................................................965.4 Inbound Transactions .........................................................................................965.4.1 Inbound Memory, I/O and Configuration Transactions Supported ..................965.4.2 PCI Express Messages Supported..............................................................975.4.2.1 Error Reporting .........................................................................985.4.3 <strong>Intel</strong> Chipset-Specific Vendor-Defined........................................................985.4.3.1 ASSERT_GPE / DEASSERT_GPE ...................................................995.5 Outbound Transactions .......................................................................................995.5.1 Memory, I/O and Configuration Transactions Supported ...............................995.5.2 Lock Support..........................................................................................995.5.3 Outbound Messages Supported.................................................................995.5.3.1 Unlock ...................................................................................1005.5.3.2 EOI ....................................................................................... 1005.6 32-/64-Bit Addressing ......................................................................................1005.7 Transaction Descriptor...................................................................................... 1005.7.1 Transaction ID...................................................................................... 1015.7.2 Attributes ............................................................................................ 1025.7.3 Traffic Class (TC) .................................................................................. 1025.8 Completer ID .................................................................................................. 1025.9 Miscellaneous .................................................................................................. 1035.9.1 Number of Outbound Non-Posted Requests ..............................................1035.9.2 MSIs Generated from Root Ports and Locks .............................................. 1035.9.3 Completions for Locked Read Requests ....................................................1035.10 PCI Express RAS..............................................................................................1035.10.1 ECRC Support ......................................................................................1035.10.2 Completion Time-Out (CTO) ...................................................................1035.10.3 Data Poisoning ..................................................................................... 1045.10.4 Role-Based Error Reporting .................................................................... 1045.11 Link Layer Specifics.......................................................................................... 1045.11.1 Ack/Nak .............................................................................................. 1045.11.2 Link Level Retry....................................................................................1055.11.2.1 Retry Buffer............................................................................1055.11.3 Ack Time-Out ....................................................................................... 1055.11.4 Flow Control.........................................................................................1065.11.4.1 Flow Control Credit Return by IOH ............................................. 1076 <strong>Intel</strong> ® 5520 Chipset and <strong>Intel</strong> ® 5500 Chipset Datasheet

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!