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Chapter 7: BIOS
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 the Static DROM
(SDROM) or to be written into 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 operation. 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 DRM (SDROM)
or written into 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 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 operation. 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 the Static DRM (SDROM)
or written into 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 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 operation. The options are "Uncached", "Write Through", "Write Protect", and
"Write Back".
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