Intel 4 3.40 GHz B80532PG0962M ユーザーズマニュアル
製品コード
B80532PG0962M
Intel
®
Pentium
®
4 Processor on 0.13 Micron Process Datasheet
71
Features
Features
6
6.1
Power-On Configuration Options
Several configuration options can be configured by hardware. The Pentium 4 processor on
0.13 micron process samples hardware configuration at reset, on the active-to-inactive transition of
0.13 micron process samples 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.
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.
NOTE:
1. Asserting this signal during RESET# will select the corresponding option.
6.2
Clock Control and Low Power States
The use of AutoHALT, Stop-Grant, and Sleep states is allowed in Pentium 4 processor on
0.13 micron process-based systems to reduce power consumption by stopping the clock to internal
sections of the processor, depending on each particular state. See
0.13 micron process-based systems 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.
6.2.1
Normal State—State 1
This is the normal operating state for the processor.
Table 6-1. Power-On Configuration Option Pins
Configuration Option
Pin
1
Output tristate
SMI#
Execute BIST
INIT#
In Order Queue pipelining (set IOQ depth to 1)
A7#
Disable MCERR# observation
A9#
Disable BINIT# observation
A10#
APIC Cluster ID (0-3)
A[12:11]#
Disable bus parking
A15#
Disable Hyper-Threading Technology
A31#
Symmetric agent arbitration ID
BR0#