Setting The Non-Cache Areas - Epson NX Service Manual

Setting the Non-cache Areas

The computer automatically caches all the system memory except two non-cache address
areas listed in the table below. You can enable or disable caching in any of the six, System
Defined Cache Control Areas and two sets of additional User Defined non-cached Areas (also
listed in the table below).
Note The computer does not cache any RAM that is installed on an option card.
Certain address areas may be disabled to avoid memory conflicts if an option card or other
device uses the same address area.
If you set any user-defined non-cache areas, SETUP automatically sets the high address at
least 4KB higher than the corresponding low address.
To change the setting of a system-defined non-cache area, select the address area and press +
or - to choose enabled or disabled
To disable caching in a user-defined non-cache area, set the beginning address of the range in
the low address option; then set the ending address in the corresponding high address option.
First low address option and press
the addresses in 4KB increments; or press Pg Up or
Once the low address is set, set the corresponding high address in the same manner.
Then press + or - to scroll through
Pg Dn to scroll in 256KB increments.
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