Datasheet 9
Introduction
1 Introduction
The Intel
®
Core™2 Duo processor E8000 series , like the previous Intel
®
Core
™
2 Duo
processors, are based on the Intel
®
Core
TM
microarchitecture. The Intel Core
microarchitecture combines the performance of previous generation Desktop products
with the power efficiencies of a low-power microarchitecture to enable smaller, quieter
systems. The Intel
®
Core™2 Duo processor E8000 series are 64-bit processors that
maintain compatibility with IA-32 software.
Note: In this document, the Intel
®
Core™2 Duo processor E8000 series may be referred to
simply as "the processor."
Note: In this document, unless otherwise specified, the Intel
®
Core™2 Duo processor E8000
series refers to the Intel
®
Core™2 Duo processors E8500, E8400, E8200, and E8190.
The processors use Flip-Chip Land Grid Array (FC-LGA6) package technology, and plugs
into a 775-land surface mount, Land Grid Array (LGA) socket, referred to as the
LGA775 socket.
The processors are based on 45 nm process technology. The processors feature the
Intel
®
Advanced Smart Cache, a shared multi-core optimized cache that significantly
reduces latency to frequently used data. The processors feature a 1333 MHz front side
bus (FSB) and 6 MB of L2 cache. The processors support all the existing Streaming
SIMD Extensions 2 (SSE2), Streaming SIMD Extensions 3 (SSE3), Supplemental
Streaming SIMD Extension 3 (SSSE3), and the Streaming SIMD Extensions 4.1
(SSE4.1). The processors support several Advanced Technologies: Execute Disable Bit,
Intel
®
64 architecture, Enhanced Intel SpeedStep
®
Technology, Intel
®
Virtualization
Technology (Intel
®
VT), and Intel
®
Trusted Execution Technology (Intel
®
TXT).
The processor's front side bus (FSB) use a split-transaction, deferred reply protocol.
The FSB uses Source-Synchronous Transfer of address and data to improve
performance by transferring data four times per bus clock (4X data transfer rate).
Along with the 4X data bus, the address bus can deliver addresses two times per bus
clock and is referred to as a "double-clocked" or 2X address bus. Working together, the
4X data bus and 2X address bus provide a data bus bandwidth of up to 10.7 GB/s.
Intel has enabled support components for the processor including heatsink, heatsink
retention mechanism, and socket. Manufacturability is a high priority; hence,
mechanical assembly may be completed from the top of the baseboard and should not
require any special tooling.
1.1 Terminology
A ‘#’ symbol after a signal name refers to an active low signal, indicating a signal is in
the active state when driven to a low level. For example, when RESET# is low, a reset
has been requested. Conversely, when NMI is high, a nonmaskable interrupt has
occurred. In the case of signals where the name does not imply an active state but
describes part of a binary sequence (such as address or data), the ‘#’ symbol implies
that the signal is inverted. For example, D[3:0] = ‘HLHL’ refers to a hex ‘A’, and
D[3:0]# = ‘LHLH’ also refers to a hex ‘A’ (H= High logic level, L= Low logic level).
“Front Side Bus” refers to the interface between the processor and system core logic
(a.k.a. the chipset components). The FSB is a multiprocessing interface to processors,
memory, and I/O.