Upgrading Cache Memory - TYAN TITAN III Manual

3.12 Upgrading Cache Memory

The S1468 can support either standard SRAM or synchronous pipeline
burst SRAM. The standard SRAM configuration would use either eight
pieces of 32Kx8(256KB cache) or eight pieces of 64Kx8(512KB cache).
For the synchronous pipeline burst cache configuration, a "COAST
Module" is plugged into the "COAST Module" connector that is located
between the CPU and the standard SRAM socket. To enable the
"COAST Moduel", you must set the jumpers to pins 1-2 for J28, J29, J30
and J31.
wRefer to page 9 for the cache jumper settings.
wWhen using the "COAST Module", the standard SRAM sockets must
be empty and the Tag RAM socket must be empty.
wThe "COAST Module" pipline burst cache unit comes in either 256KB
or 512KB sizes and has a built in Tag RAM chip.
wThe "COAST Module" will only fit in the "Coast Socket" one way and
should install easily.
wWhen upgrading standard SRAM to 512KB, you will need to set the
jumpers and use eight 64Kx8 chips.
w w The tag RAM chip doesn't need to be changed when upgrading to
512KB of standard SRAM.
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