B&R Industries Automation PC 620, Руководство пользователя

Страница: 282 / 512

282
Software • Automation PC 620 with BIOS
Automation PC 620 User's Manual V 1.90
Cache base 512-
640k Set whether the memory content should
be mapped in the cache (512-640k), and
when necessary, written in the main
memory. Uncached No mapping.
Write through Memory content is simultaneously mapped in the
cache and written to the main memory.
Write protect Memory content is mapped in the cache.
Write back Memory content is mapped only when necessary.
Cache extended
memory area Configure how the memory content of the
system memory above 1MB should be
mapped. Uncached No mapping.
Write through Memory content is simultaneously mapped in the
cache and written to the main memory.
Write protect Memory content is mapped in the cache.
Write back Memory content is mapped only when necessary.
Cache D000 - D3FF Configure how the memory content of
D000-D3FF should be mapped. Uncached No mapping.
Write through Memory content is simultaneously mapped in the
cache and written to the main memory.
Write protect Memory content is mapped in the cache.
Write back Memory content is mapped only when necessary.
Cache D400 - D7FF Configure how the memory content of
D400-D7FF should be mapped. Uncached No mapping.
Write through Memory content is simultaneously mapped in the
cache and written to the main memory.
Write protect Memory content is mapped in the cache.
Write back Memory content is mapped only when necessary.
Cache D800 - DBFF Configure how the memory content of
D800-DBFF should be mapped. Uncached No mapping.
Write through Memory content is simultaneously mapped in the
cache and written to the main memory.
Write protect Memory content is mapped in the cache.
Write back Memory content is mapped only when necessary.
Cache DC00 - DFFF Configure how the memory content of
DC00-DFFF should be mapped. Uncached No mapping.
Write through Memory content is simultaneously mapped in the
cache and written to the main memory.
Write protect Memory content is mapped in the cache.
Write back Memory content is mapped only when necessary.
BIOS setting Description Setting options Effect
Table 198: 855GME - memory cache - setting options (cont.)