The Intel® 64-bit PCI/PCIX Controller Hub 2, or P64H2, introduces a high-performance PCIX/PCI bus to the enterprise server market in this second-generation component, providing bridging functions between the hub interface
and PCIX/PCI buses. The P64H2 connects to the SIOH through one of the four point-to-point Hub Interface-2 connections delivering a maximum throughput of 1 Gigabyte per second per connection.
Each P64H2 contains two independent 64-bit, 133-Megahertz PCIX interfaces and two PCI hot plug controllers, one for each PCIX interface. These features allow I/O flexibility including platform configuration options with up to
eight high-performance 64-bit, 133 PCIX buses.
The Intel® Gigabit Ethernet controller and the I/O processor can attach to the P64H2 component to provide another layer of I/O configuration flexibility.
The Intel Gigabit Ethernet controller provides the high network throughput of Intel's Gigabit Ethernet products in a single, integrated component. The Ethernet controller also incorporates a 133 Megahertz, 64-bit wide PCIX
interface that matches the I/O bandwidth of the P64H2 component.
The small size and low power consumption of this Ethernet controller make it ideal for LAN on motherboard platform implementations.
The Intel® IOP321 I/O processor brings added value and performance to the Intel E8870 chipset by integrating the Intel® Xscale™ microarchitecture core, a 64-bit PCIX interface, a memory controller unit, and a RAID