Octek BISON II, Руководство пользователя

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GENERAL FEATURES
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In summary, the Pentium processor provides
an ultimate performance levels and retains
compatibility with the existing applications.
Cache Subsystem
The external cache of BISON II is write-back,
direct-mapped with sizes of 64K, 128K, 256K or
512K. It is organized by single or dual bank. Dual
bank is accessed in interleaved manner and it can
support 3-2-2-2 burst read cycle.
DRAM Subsystem
The memory controller is 64 bit wide and has the
following features:
- Hidden refresh is used to increase the CPU
bandwidth. The DRAM can be refreshed in the
background while the CPU is accessing the internal
cache.
- Page Mode is used for faster data access
from the DRAMs.
- Posted-Write to the DRAM improves the write-
cycle timing. One quad-word deep data buffer is
used to hold the data from the CPU without waiting
for the external DRAM cycle.