Intel
®
Celeron
®
Processor 1.66 GHz/1.83 GHz—Introduction
Intel
®
Celeron
®
Processor 1.66 GHz/1.83 GHz
DS
January 2007
6
Order Number: 315876-002
1.0
Introduction
The Intel
®
Celeron
®
Processor 1.66 GHz/1.83 GHz is a single-core, low-power
processor designed for embedded, communications infrastructure and storage
applications. The processor is manufactured on Intel’s advanced 65 nanometer process
technology with copper interconnect.
The following list provides some of the key features on this processor:
• Single core
• Uniprocessor support only
• 36-bit physical addressing
• Address, Data, and Response Parity on the Front Side Bus (FSB)
• Supports Intel Architecture with Dynamic Execution
• On-die, 32 kB Level 1 instruction cache and 32 kB write-back data cache
• On-die, 1 MB, ECC protected, Level 2 cache with Advanced Transfer Cache
Architecture
• Data Prefetch Logic
• Streaming SIMD Extensions 2 (SSE2) and Streaming Single Instruction Multiple
Data (SIMD) Extensions 3 (SSE3)
• 667 MT/s (megatransfers/second), Source-Synchronous FSB
• Digital Thermal Sensor (DTS)
• Intel Thermal Monitor 1 (TM1) and Thermal Monitor 2 (TM2)
• Micro-FCPGA packaging technologies
• Execute Disable Bit support for enhanced security
The Intel
®
Celeron
®
Processor 1.66 GHz/1.83 GHz maintains support for MMX
TM
Technology and Streaming SIMD instructions and full compatibility with IA32 software.
The on-die, 32 kB Level 1 instruction and data caches and the 1 MB Level 2 cache with
Advanced Transfer Cache Architecture enable performance improvement over existing
low power processors. The processor’s Data Prefetch Logic speculatively fetches data to
the L2 cache before an L1 cache request occurs, resulting in reduced bus cycle
penalties and improved performance. The Intel
®
Celeron
®
Processor 1.66 GHz/1.83
GHz includes the Data Cache Unit Streamer, which enhances the performance of the L2
prefetcher by requesting L1 warm-ups earlier. In addition, Write Order Buffer depth is
enhanced to help with write-back latency performance.
In addition to supporting all the existing Streaming SIMD Extensions 2 (SSE2), there
are 13 new instructions, which further extend the capabilities of Intel processor
technology. These new instructions are called Streaming SIMD Extensions 3 (SSE3).
These new instructions enhance the performance of optimized applications such as
video, image processing and media compression technology. 3D graphics and other
video intense applications have the opportunity to take advantage of these new
instructions as platforms with the Intel
®
Celeron
®
Processor 1.66 GHz/1.83 GHz and
SSE3 become available.
