Enabling Memory Cache - Teknor Industrial Computers TEK-CPCI-1000 Technical Reference Manual

TEK-CPCI-1000 Technical Reference Manual
6.3

ENABLING MEMORY CACHE

There are two separate caches in the host subsystem: internal cache and external cache. The
cache inside the processor (internal cache) is referred to as the first level cache (also primary
cache or L1).
The external cache (called system cache in this manual) comprises the System Controller's
cache control circuitry and associated external memory array; it is referred to as the second
level cache (also secondary cache or L2). The second level cache is unified, which means that
both CPU data and instructions are stored in the cache.
System cache must be enabled and configured using the Award BIOS setup program (details
in Section 12 - Software Setup).
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