Skip to Main Content
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
462 THE x86 MICROPROCESSORS
13.3 | The 8086 and 8089 in a Tightly Coupled Con guration
e 8086 directly supports multiprocessing also with processors called ‘independent processors’.
One such processor is the 8089 I/O processor. It is a processor specially designed by Intel to
handle input/output processing including DMA (Ref. Section. 11.5).  is processor is inde-
pendent in the sense that it is not directed or dependant on the host processor. In a ‘local’ con-
guration, both the processors’ address, data and control signal lines are tied together.  e only
way of communication between the two is by messages stored in their shared memor ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Microprocessors and Microcontrollers  by Pearson

Microprocessors and Microcontrollers by Pearson

Lyla B Das

Publisher Resources

ISBN: 9781282663169