Kontron COMe-bCD2 - Manual (Page 54)

11 BIOS Setup
Kontron User's Guide ETXexpress® CD 54
11.3.2 Cache Memory Submenu
Feature Option Description
Memory Cache
Disabled
Enabled
Sets the state of the memory cache
Cache System BIOS area
Uncached
Write Protect
Controls caching of system BIOS area
Cache Video BIOS area
Uncached
Write Protect
Controls caching of video BIOS area
Cache Base 0-512k
Uncached
Write Through
Write Protect
Write Back
Controls caching of 512k base memory
Cache Base 512k-640k
Uncached
Write Through
Write Protect
Write Back
Controls caching of 512k 640k base memory
Cache Extended Memory Area
Uncached
Write Through
Write Protect
Write Back
Controls caching of system memory above
one megabyte
Cache A000-AFFF
Disabled
USWC caching
Write Through
Write Protect
Write Back
Disabled – This block is not cached.
USWC – Uncached Speculative Write
Combined.
Write Through – Writes are cached and sent
to main memory at once.
Write Protect – Writes are ignored.
Write Back – Writes are cached but not sent
to main memory until necessary
Cache B000-BFFF
Disabled
USWC caching
Write Through
Write Protect
Write Back
Cache C800-CBFF
Disabled
Write Through
Write Protect
Write Back
Disabled – This block is not cached.
Write Through – Writes are cached and sent
to main memory at once.
Write Protect – Writes are ignored.
Write Back – Writes are cached but not sent
to main memory until necessary
Cache CC00-CFFF
Disabled
Write Through
Write Protect