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The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
book

The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition

by Lyla B. Das
May 2024
Intermediate to advanced content levelIntermediate to advanced
665 pages
23h 2m
English
Pearson India
Content preview from The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
580 THE x86 MICROPROCESSORS
Modern PC systems do not use the Motorola chip anymore – instead, they incorporate the
functions of this chip into the motherboard chipset (South Bridge) or Super I/O chip, or they
use a special battery and NVRAM module. Because of the low power capability of CMOS,
the battery life lasts up to ten years.  e memory and
real-time clock are generally powered by a
CR2032 lithium coin cell (See Fig 17.1).
Many newer systems have CMOS RAM with 2KB to 4KB capacity or more.  e extra
room is used to store the Plug and Play information detailing the con guration of adapter cards
and other options in the system. As such,
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Publisher Resources

ISBN: 9781282663169