Why do many systems have a separate cache for code and data, and how does the hardware know whether some set of ones and zeros in memory are bytes of code or bytes of data?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter6: System Integration And Performance
Section: Chapter Questions
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Why do many systems have a separate cache for code and data, and how does the hardware know whether some set of ones and zeros in memory are bytes of code or bytes of data?

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