S2600GZ and S2600GL

Intel® Server Board S2600GZ/GL TPS Product Architecture Overview
3.2.5
Processor Integrated I/O Module (IIO)
The processor integrated I/O module provides features traditionally supported through chipset components.
The integrated I/O module provides the following features:
 PCI Express Interfaces: The integrated I/O module incorporates the PCI Express interface supporting
up to 40 PCI Express bus lanes via three PCIe ports.
 DMI2 Interface to the PCH: The platform requires an interface to the legacy Southbridge (PCH) which
provides basic, legacy functions required for the server platform and operating systems. Since only one
PCH is required and allowed for the system, any sockets which do not connect to PCH would use this
port as a standard x4 PCI Express 2.0 interface.
 Integrated IOAPIC: Provides support for PCI Express devices implementing legacy interrupt messages
without interrupt sharing
 Non Transparent Bridge: PCI Express non-transparent bridge (NTB) acts as a gateway that enables
high performance, low overhead communication between two intelligent subsystems; the local and the
remote subsystems. The NTB allows a local processor to independently configure and control the local
subsystem, provides isolation of the local host memory domain from the remote host memory domain
while enabling status and data exchange between the two domains.
 Intel
®
QuickData Technology: Used for efficient, high bandwidth data movement between two
locations in memory or from memory to I/O.
Figure 16. Functional Block Diagram of Processor IIO Sub-system
The following sub-sections describe the server board I/O features supported by the PCIe interface of the
processor IIO module. Features and functions of the Intel
®
C600 Series chipset will be described in its own
dedicated section.
Revision 2.4
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