IXB28504XGBEFS Intel, IXB28504XGBEFS Datasheet - Page 107

• Manufacturer Part Number: IXB28504XGBEFS
• Manufacturer: Intel

Specifications of IXB28504XGBEFS

• Lead Free Status / Rohs Status: Compliant

Network Processor Firmware—IXB2850
Figure 35.
Table 47.
January 2007
Document Number: 05-2443-006
Logical NPU flash memory layout
The NPU flash contains two types of regions:
NPU flash memory system regions
Sector
Initial Loader
Boot Monitor
Diagnostics
System Log partition
Boot Configuration
partition
FIS directory
• System Space – These flash sectors are occupied by system blocks necessary for
IXB2850 board operation and cannot be used for other purposes. See
details.
Linux root file system #1
Linux root file system #2
Boot Configuration
Contains information on all flash entries.
Purpose
Stored in the first FIS partition. The partition should not exceed one or two flash blocks
and should be locked to prevent accidental erase and program operations. It is
responsible for preliminary board initialization, selecting Boot Monitor image, loading it
to RAM memory and starting it. By default the Initial Loader does not provide CLI,
however it is possible to stop the booting procedure and use the loader’s command
line to update a Boot Monitor image for example. This is done mostly in emergency
cases.
Responsible for board initialization and for selecting and starting the Linux Kernel. The
Boot Monitor provides CLI. In case of any error, the user can perform additional
diagnostics and recovery actions.
Allows the performing of detailed hardware tests and is helpful in determining the
overall condition of the board.
A local data storage for Boot Monitor and Diagnostics.
Handles all necessary information that is used during system start, for example,
IP address configuration (static IP configuration or configuration using BOOTP
requests) and run-time image loading script.
Target Image #1
Target Image #2
Boot Monitor #1
Boot Monitor #2
Linux kernel #1
Linux kernel #2
Initial Loader
FIS directory
Diagnostics
System Log
JFFS
Intel NetStructure
System regions
User regions
®
IXB2850 Packet Processing Boards
Table 47
for
TPS
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