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Intel® 6702PXH 64-bit PCI Hub DatasheetThe Intel® 6702PXH 64-bit PCI Hub are peripheral chips that perform PCI* bridging functions between the PCI Express*
interface and the PCI Bus. The Intel® 6702PXH 64-bit PCI Hub contains a single PCI bus interface that can be configured to operate in PCI (33 or 66 MHz) or PCI-X
Mode 1 (66, 100, or 133 MHz). The Intel® 6702PXH 64-bit PCI Hub further support the new PCI Standard Hot-Plug Controller and Subsystem Specification, Revision
1.0. Each PCI interface contains an I/OxAPIC with 24 interrupts and a standard hot plug controller. PCI Express Interface (Primary Bus) The primary bus
interface between the Intel® 6702PXH 64-bit PCI Hub and the core logic chipset component is the PCI Express interface. Maximum realized bandwidth on this
interface is 2 GB/s in each direction simultaneously, for an aggregate of 4 GB/s. The PCI Express interface is compatible with the PCI Express Base Specification,
Revision 1.0a. The Intel® 6702PXH 64-bit PCI Hub supports X1, X4, and X8 widths for PCI Express. X4 width is supported on 3:0 (with 3 being lane 3) and 4:7 (with
4 being lane 3), and X1 width is supported on lanes 7, 4, 3, and 0. The Intel® 6702PXH 64-bit PCI Hub also supports X8 lane reversal, plus X4 lane reversal on the
lower 4 lanes only. PCI/PCI-X Bus Interfaces (Secondary Bus) The Intel® 6702PXH 64-bit PCI Hub has a single PCI Bus interface (PCI Bus A). In this
document these buses are referred to as the secondary buses. These interfaces can be independently configured as either a PCI Bus or PCI-X Bus. The Intel® 6702PXH
64-bit PCI Hub support conventional PCI and PCI-X Mode 1. PCI Bus extensions are also supported; these include 64-bit addressing outbound, with the capability to
assert DAC, and full 64-bit addressing inbound. The inbound packet size is based on cache line size of the platform. The PCI Bus interface is compliant with the
PCI Local Bus Specification, Revision 2.3. The PCI-X* interface on the Intel® 6702PXH 64-bit PCI Hub is compliant with the PCI-X Addendum to the PCI Local Bus
Specification, Revision 1.0b as well as the Mode 1 section of the PCI-X Electrical and Mechanical Addendum to the PCI Local Bus Specification, Revision 2.0a and
the PCI-X Protocol Addendum to the PCI Local Bus Specification, Revision 2.0a. For conventional PCI Mode, the Intel® 6702PXH 64-bit PCI Hub supports PCI bus
frequencies of 33 MHz and 66 MHz. For the PCI-X Mode 1, the Intel® 6702PXH 64-bit PCI Hub supports PCI bus frequencies of 66 MHz, 100 MHz, and 133 MHz.Read
the full Intel® 6702PXH 64-bit PCI Hub Datasheet.
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