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Chapter 7: BIOS
Memory Cache
Cache System BIOS Area
This setting allows you to designate a reserve area in the system memory to be used
as a System BIOS buffer to allow the BIOS to write (cache) data into this reserved
memory area. Select Write Protect to enable this function, and this area will be
reserved for BIOS ROM access only. Select Uncached to disable this function and
make this area available for other devices.
Cache Video BIOS Area
This setting allows you to designate a reserve area in the system memory to be
used as a Video BIOS buffer to allow the BIOS to write (cache) data into this
reserved memory area. Select Write Protect to enable the function and this area
will be reserved for Video BIOS ROM access only. Select Uncached to disable this
function and make this area available for other devices.
Cache Base 0-512K
If enabled, this feature will allow the data stored in the base memory area block 0-
512K to be cached (written) into a buffer, a storage area in Static DROM (SDROM)
or to be written into the L1, L2 cache inside the CPU to speed up CPU operations.
Select Uncached to disable this function. Select Write Through to allow data to be
cached into the buffer and written into the system memory at the same time. Select
Write Protect to prevent data from being written into the base memory area of Block
0-512K. Select Write Back to allow CPU to write data back directly from the buffer
without writing data to the System Memory for fast CPU data processing and opera-
tion. The options are Uncached, Write Through, Write Protect, and Write Back.
Cache Base 512K-640K
If enabled, this feature will allow the data stored in the memory area 512K-640K
to be cached (written) into a buffer, a storage area in the Static DROM (SDROM)
or written into the L1, L2, L3 cache inside the CPU to speed up CPU operations.
Select Uncached to disable this function. Select Write Through to allow data to be
cached into the buffer and written into the system memory at the same time. Select
Write Protect to prevent data from being written into the base memory area of Block
512-640K. Select Write Back to allow CPU to write data back directly from the buffer
without writing data to the System Memory for fast CPU data processing and opera-
tion. The options are Uncached, Write Through, Write Protect and Write Back.
Cache Extended Memory
If enabled, this feature will allow the data stored in the extended memory area to
be cached (written) into a buffer, a storage area in Static DROM (SDROM) or writ-
ten into the L1, L2, L3 cache inside the CPU to speed up CPU operations. Select
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