Specifications

Intel
®
Quark SoC X1000 Core
October 2013 Developer’s Manual
Order Number: 329679-001US 69
Protected Mode Architecture—Intel
®
Quark Core
6.2 Segmentation
6.2.1 Segmentation Introduction
Segmentation is one method of memory management. Segmentation provides the
basis for protection. Segments are used to encapsulate regions of memory that have
common attributes. For example, all of the code of a given program could be contained
in a segment, or an operating system table may reside in a segment. All information
about a segment is stored in an 8-byte data structure called a descriptor. All of the
descriptors in a system are contained in tables recognized by hardware.
Figure 24. Protected Mode Addressing
Figure 25. Paging and Segmentation