本文深入探讨了ARM LPC2148处理器中数据中止异常的触发条件，包括执行未对齐内存访问、写入ROM空间和访问保留区域等情况。文章提供了详细解释和实例，帮助开发者更好地理解和处理此类异常。
How to use ARM's data-abort exception --- good article about data abort
http://www.embedded.com/shared/printableArticle.jhtml?articleID=192202641
(som excerpt)
How exceptions are raised
When can we expect a data-abort exception to be raised on the LPC 2148? These are the three general classes:
- When executing an unaligned memory access using instructions summarized in Table 1
- While performing a write to ROM (flash) space
- When accessing any of the Reserved Areas defined in the LPC 2148 User Manual4
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