82575 Ethernet Controller Design Guide

Note: Sector erase by SW is not supported. In order to delete a sector, the serial (bit bang) interface should be used.

3.2.4.3FLASH Device Information

While Intel does not make specific recommendations regarding FLASH devices, the following devices have been used successfully in previous designs:

Manufacturer

Device

Notes

 

 

 

 

 

Please contact

Intel

Blanshard

your Intel

representative

 

 

 

 

for information

 

 

 

Atmel

AT25F1024

 

 

 

 

Atmel

AT25F2048

 

 

 

 

3.3SMBus and NC-SI

SMB and NC-SI are optional interfaces for pass-through and/or configuration traffic between the BMC and the 82575 Ethernet Controller. Please refer to the 82575 TCO/ System Management Interface Guide for more information.

Note: Intel recommends that the SMBus be connected to the ICH or BMC for the EEPROM recovery solution. If the connection is to a BMC, it will be able to send the EEPROM release command.

The 82575 Ethernet Controller NC-SI interface is a connection to an external BMC. It operates in one of two modes:

NC-SI-SMB mode - In conjunction with an SMB interface, where pass-through traffic passes through NC-SI and configuration traffic passes through SMB

NC-SI mode - As a single interface with an external BMC, where all traffic (other than header redirection) between the 82575 Ethernet Controller and the BMC flows through the interface.

The Clock-out (if enabled) is provided in all power states (unless the device is disabled).

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Intel 317698-001 manual SMBus and NC-SI, Flash Device Information, Manufacturer Device

317698-001 specifications

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