Intel Pentium M 730 RH80536GE0252M User Manual

Product codes
RH80536GE0252M
Page of 97
Electrical Specifications
14
  
 
Mobile Intel
 Pentium
 4 Processor-M Datasheet
affect the long term reliability of the processor. For further information and design guidelines, refer 
to the Mobile Intel
 Pentium
 4 Processor-M and Intel
 845MP/845MZ Chipset Platform Design 
Guide. 
2.3.1
V
CC 
Decoupling
Regulator solutions need to provide bulk capacitance with a low Effective Series Resistance (ESR) 
and keep a low interconnect resistance from the regulator to the socket. Bulk decoupling for the 
large current swings when the part is powering on, or entering/exiting low-power states, must be 
provided by the voltage regulator solution. For more details on decoupling recommendations, 
please refer to the Mobile Intel
 Pentium
 4 Processor-M and Intel
 845MP/845MZ Chipset 
Platform Design Guide.
2.3.2
System Bus AGTL+ Decoupling
The Mobile Intel Pentium 4 Processor-M integrates signal termination on the die and incorporates 
high frequency decoupling capacitance on the processor package. Decoupling must also be 
provided by the system motherboard for proper AGTL+ bus operation. For more information, refer 
to the Mobile Intel
 Pentium
 4 Processor-M and Intel
 845MP/845MZ Chipset Platform Design 
Guide.
2.3.3
System Bus Clock (BCLK[1:0]) and Processor Clocking
BCLK[1:0] directly controls the system bus interface speed as well as the core frequency of the 
processor. As in previous generation processors, the Mobile Intel Pentium 4 Processor-M core 
frequency is a multiple of the BCLK[1:0] frequency. Refer to 
 for the Mobile Intel Pentium 
4 Processor-M supported ratios.
NOTES:
1. Ratio is used for debug purposes only.
Table 2.  Core Frequency to System Bus Multipliers
Core Frequency
Multiplication of System Core Frequency 
to System Bus Frequency
Notes
2
800 MHz
1/8 
1
1.2 GHz
1/12
1.4 GHz
1/14
1.5 GHz
1/15
1.6 GHz
1/16
1.7 GHz
1/17
1.8 GHz
1/18
1.9 GHz
1/19
2.0 GHz
1/20
2.2 GHz
1/22
2.4 GHz
1/24
2.5 GHz
1/25
2.6 GHz
1/26