Intel E5400 AT80571PG0682ML Data Sheet

Datasheet

85

Several configuration options can be configured by hardware. The processor samples 

the hardware configuration at reset, on the active-to-inactive transition of RESET#. For 

specifications on these options, refer to 

The sampled information configures the processor for subsequent operation. These 

configuration options cannot be changed except by another reset. All resets reconfigure 

the processor; for configuration purposes, the processor does not distinguish between 

a "warm" reset and a "power-on" reset.

NOTE:
1.

Asserting this signal during RESET# will select the corresponding option.

2.

Address signals not identified in this table as configuration options should not be asserted 
during RESET#.

3.

Disabling of any of the cores within the processors must be handled by configuring the 
EXT_CONFIG Model Specific Register (MSR). This MSR will allow for the disabling of a 
single core per die within the processor package. 

The processor allows the use of AutoHALT and Stop-Grant states to reduce power 

consumption by stopping the clock to internal sections of the processor, depending on 

each particular state. See 

 for a visual representation of the processor low 

power states.

Output tristate

SMI#

Execute BIST

A3#

Disable dynamic bus parking

A25#

Symmetric agent arbitration ID

BR0#

RESERVED

A[24:4]#, A[35:26]#