deferred reply protocol. The 400-MHz processor system bus uses Source-Synchronous Transfer
(SST) of address and data to improve performance by transferring data four times per bus clock (4X
data transfer rate, as in AGP 4X). 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 3.2
Gbytes/second. The processor system bus uses Advanced Gunning Transceiver Logic (AGTL+)
signal technology, a variant of GTL+ signalling technology with low power enhancements.
Note:
The term AGTL+ has been used for Assisted Gunning Transceiver Logic technology on other
Intel products.
The processor features Enhanced Intel SpeedStep technology, which enables real-time dynamic
switching between multiple voltage and frequency points instead of two points supported on
previous versions of Intel SpeedStep technology. This results in optimal performance without
compromising low power. The processor features the Auto Halt, Stop-Grant, Deep Sleep, and
Deeper Sleep low power states.
The Intel Pentium M processor utilizes socketable Micro Flip-Chip Pin Grid Array
(Micro-FCPGA) and surface mount Micro Flip-Chip Ball Grid Array (Micro-FCBGA) package
technology. The Micro-FCPGA package plugs into a 479-hole,surface-mount, Zero Insertion Force
(ZIF) socket, which is referred to as the mPGA479M socket.
This document includes specifications for the Intel Pentium M processor at Highest Frequency
Mode (HFM) core frequencies of 1.30, 1.40, 1.50, 1.60 and 1.70 GHz, the Low Voltage Intel
Pentium M processor at HFM core frequency of 1.10 and 1.20 GHz and the Ultra Low Voltage Intel
Pentium M processor at HFM core frequency of 900MHz and 1.00 GHz.
B. North Bridge
–
MCH 855PM
Intel
®
Centrino
™
mobile technology with integrated wireless LAN capabilities was designed
specifically for wireless notebook PCs
–
delivering outstanding mobile performance and enabling
extended battery life and thinner, lighter designs
.
The Intel
®
855PM Memory Controller Hub (MCH) is an Intel
®
Centrino
™
mobile technology
component. The MCH manages the flow of information between its four interfaces: the processor
side bus (communication with the Intel
®
Pentium
®
M processor), memory interface, AGP interface,
TECHNICAL SERVICE MANUAL
Prestigio Nobile 159W
1-4
Summary of Contents for NOBILE 159W
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