Aaeon SBC-455, Product Manual

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44 SBC-455 User's Manual
Internal Cache:
This option specifies the caching algorithm used for L1 internal
cache memory. The setting are:
Setting Description
Disabled Neither L1 internal cache memory on the
CPU nor L2 secondary cache memory is
enabled.
WriteBack Use the write-back caching algorithm.
WriteThru
Use the write-through caching algorithm.
External Cache
This option specifies the caching algorithm used for L2 secondary
(external) cache memory. The settings are:
Setting Description
Disabled Neither L1 internal cache memory on the
CPU nor L2 secondary cache memory is
enabled.
WriteBack Use the write-back caching algorithm.
WriteThru Use the write-through caching algorithm.
System BIOS Cacheable
When this option is set to Enabled, the contents of the F0000h
system memory segment can be read from or written to L2 second-
ary cache memory. The contents of the F0000h memory segment are
always copied from the BIOS ROM to system RAM for faster
execution.
The settings are
Enabled or Disabled. The Fail-Safe default setting
is Disabled .
Numeric Processor Test
Set this option to Enbable to permit numeric processor to be
tested. The deault setting is Disabled .
Hard Disk Delay
This option allows you to select hard disk delay time from 5 Sec to
15 Sec. The default setting is Disabled .