Intel L2400 LE80539LF0282M User Manual

Product codes
LE80539LF0282M
Page of 91
Datasheet
7
Introduction
1
Introduction
The Intel®
 
Core
TM
 Duo processor and the Intel®
 
Core
TM
 Solo processor are built on 
Intel’s next generation 65 nanometer process technology with copper interconnect. The 
Intel
 
Core Solo processor refers to a single core processor and the Intel
 
Core
 
Duo 
processor refers to a dual core processor. This document provides specifications for all 
Intel
 
Core Duo processor and Intel
 
Core Solo processor in standard voltage (SV), low 
voltage (LV) and ultra low voltage (ULV) products. 
Note:
All instances of the “processor” in this document refer to the Intel Core Duo processor 
and Intel Core Solo processor with 2-MB L2 cache, unless specified otherwise.
Intel processor numbers are not a measure of performance. Processor numbers 
differentiate features within each processor family, not across different processor 
families. See www.intel.com/products/processor_number for details.
The following list provides some of the key features on this processor:
• First dual core processor for mobile
• Supports Intel® Architecture with Dynamic Execution
• On-die, primary 32-KB instruction cache and 32-KB write-back data cache
• On-die, 2-MB second level cache with Advanced Transfer Cache Architecture
• Data Prefetch Logic
• Streaming SIMD Extensions 2 (SSE2) and Streaming SIMD Extensions 3 (SSE3)
• The  Intel
 
Core Duo processor and Intel
 
Core Solo processor standard voltage and 
low voltage processors are offered at 667-MHz FSB 
• The Intel Core Duo processor and Intel Core Solo processor ultra low voltage are 
offered at 533-MHz FSB
• Advanced power management features including Enhanced Intel SpeedStep® 
Technology 
• Digital thermal sensor (DTS)
• The  Intel
 
Core Duo processor and Intel
 
Core Solo processor standard voltage are 
offered in both the Micro-FCPGA and the Micro-FCBGA packages 
• Intel
 
Core Duo processor low voltage is offered only in the Micro-FCBGA package
• The  Intel
 
Core Duo processor and Intel
 
Core Solo processor ultra low voltage are 
offered only in Micro-FCBGA package 
• Execute Disable Bit support for enhanced security
• Intel® Virtualization Technology
• Intel® Enhanced Deeper Sleep and Dynamic Cache Sizing
The processor maintains support for MMX™ technology, Streaming SIMD instructions, 
and full compatibility with IA-32 software. The processor features on-die, 32-KB, Level 
1 instruction and data caches and a 2-MB level 2 cache with Advanced Transfer Cache 
Architecture. The processor’s Data Prefetch Logic speculatively fetches data to the L2 
cache before the L1 cache requests occurs, resulting in reduced bus cycle penalties. 
The processor includes the Data Cache Unit Streamer which enhances the performance 
of the L2 prefetcher by requesting L1 warm-ups earlier. In addition, the Writer Order 
Buffer depth is enhanced to help with the write-back latency performance.