Themis RES-32DCX, Installation Manual

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RES-32DCX Installation Manual
C-10
Themis Computer
C.4.2 X Memory Cache
C.4.2.1 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 write (cache) its 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 “Unchecked” to disable this function
and make this area available for other devices.
C.4.2.2 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 write (cache) its 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 func-
tion and make this area available for other devices.
C.4.2.3 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 oper-
ations. 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 pro-
cessing and operation. The options are Uncached, Write Through, Write Protect, and
Write Back .
C.4.2.4 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 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 512K-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 pro-
cessing and operation. The options are Uncached, Write Through, Write Protect, and
Write Back .