IXB28504XGBEFS Intel, IXB28504XGBEFS Datasheet - Page 11

• Manufacturer Part Number: IXB28504XGBEFS
• Manufacturer: Intel

Specifications of IXB28504XGBEFS

• Lead Free Status / Rohs Status: Compliant

Introduction—IXB2850
Figure 1.
1.4.3
January 2007
Document Number: 05-2443-006
The SPI-4.2 bus is a 16-bit wide bus (in each direction), dedicated to high-speed
network forwarding tasks. Signal conversion and distribution occurs inside the Media
Access Module. The Media Access Module is comprised of a SPI-3/4 Bridge chip and
Fork FPGA set used to convert SPI-4.2 from the network processor into four SPI-3 lines
routed to the backplane access module and to personality mezzanine cards. See
Section 3.2.1, “Media Access Module” on page 28
and more detail.
IXB2850 board functional block diagram
Backplane Access Module
This module connects to the main backplane communication channels, the base
interface and the fabric interface, each of which is described below.
Base Interface
This interface is used to access the AdvancedTCA base interface, which is defined as a
1000BASE-T Ethernet by PICMG 3.0. Ports 0 and 1 of the Intel
Gigabit Ethernet Controller together with two PHY 0 and 1 devices are used to connect
to the base interface. This interface, in a PICMG 3.1 scenario supported by IXB2850
boards, is used for control traffic only. Data traffic is routed through the fabric
interface.
(PMC Site)
Processor
Optional
Adjunct
Forwarding
NP
Gigabit Ethernet Interfaces
Interface
AdvancedTCA Backplane
Quad Gigabit Ethernet
Base
Intel NetStructure
Backplane Access
Mezzanine Card
(Front Panel)
for a block diagram of the circuitry
Module
Access
Module
Media
®
Interface
IXB2850 Packet Processing Boards
Fabric
®
82546 Dual Port
TPS
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