Intel X3330 AT80580KJ0676M Data Sheet

Product codes
AT80580KJ0676M
Page of 102
Dual-Core Intel® Xeon® Processor 3000 Series Datasheet
89
Features
6
Features
6.1
Power-On Configuration Options
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 reset purposes, the processor does not distinguish between a 
"warm" reset and a "power-on" reset.
6.2
Clock Control and Low Power States
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.
Table 6-1.
Power-On Configuration Option Signals
Configuration Option
Signal
1
,
2
,
3
Notes:
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 processor must be handled by configuring the
EXT_CONFIG Model Specific Register (MSR). This MSR will allow for the disabling of a single
core. 
Output tristate
SMI#
Execute BIST
A3#
Disable dynamic bus parking
A25#
Symmetric agent arbitration ID
BR0#
RESERVED
A[8:5]#, A[24:11]#, A[35:26]#