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C2SBA+II/C2SBA+/C2SBA/C2SBE User's Manual
data processing and operation. The options are Uncached, Write Through, Write
Protect, and Write Back.
Cache Extended Memory Area
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 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 extended memory area above 1
MB. Select Write Back to allow the 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 A000-AFFF
Cache B000-BFFF
Cache C800-CBFF
Cache CC00-CFFF
Cache D000-D3FF
Cache D400-D7FF
Cache D800-DBFF
Cache DC00-DFFF
Select Disabled to prevent the data stored in the memory block specied from being
cached into a cache area in the CPU or a buffer in the Static DROM. Select USWC
Caching to use the Uncached, Speculative and Write Combined Mode for the data
in the memory block specied. Select Write Through to allow the data stored in the
memory block specied to be cached into a CPU cache area and written into the
system memory at the same time. Select Write Protect to prevent data from being
written into the memory block specied. Select Write Back to allow the CPU to write
data back directly from the buffer to the memory block specied without writing data
to the System Memory for fast CPU data processing and operation. The options are
Disabled, USWC Caching, Write Through, Write Protect, and Write Back.
Cache E000-E3FF
Cache E400-E7FF
Cache E800-EBFF
Cache EC00-EFFF
Select Disabled to prevent the data stored in the memory block specied from being
cached into a cache area in the CPU or a buffer in the Static DROM. Select USWC
Caching to use the Uncached, Speculative and Write Combined Mode for the data
in the memory block specied. Select Write Through to allow the data stored in the