Xycom XVME-653, Manual

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XVME-653/658 Manual
3-6
Memory Cache Submenu
Enabling cache increases CPU performance by holding data most recently accessed in a
special high-speed static RAM area called cache. The XVME-653/658 provides two lev-
els of cache memory; level one is internal to the CPU (see CPU Chip on p. 1-2), and
level two (external cache) is 512 KB of high-speed cache memory.
PhoenixBIOS Setup–Copyright 1985-95 Phoenix Technologies Ltd.
Main
Memory Cache Item Specific Help
External Cache: [Enabled]
Cache System BIOS area: [Enabled]
Cache Video BIOS area: [Enabled]
If the line item you are viewing
has specific help, it will be listed
Cache Memory Region
here.
CC00-CFFF: [Disabled]
D000-D3FF: [Disabled]
D400-D7FF: [Disabled]
D800-DBFF [Disabled]
DC00-DFFF: [Disabled]
F1 Help
↑↓
Select Item -/+ Change Values F9 Setup Defaults
ESC Exit
←→
Select Menu Enter Select
&
Submenu F10 Previous Values
Figure 3-3 Memory Cache Submenu
Table 3-3 Memory Cache Submenu Options
Option Description
External Cache Controls the state of external cache memory. The system BIOS automatically dis-
ables external cache if it is not installed. The default is
Enabled .
Cache System BIOS Area Allows the system BIOS memory area to be cached if Enabled . Enabling also in-
creases system performance. The default is Enabled .
Cache Video BIOS Area Allows the video BIOS memory area to be cached if Enabled . Enabling also in-
creases system performance. The default is Enabled .
Cache Memory Region Caches the corresponding memory when Enabled . Memory in this area is usually
extended BIOS or AT-bus memory. Enabling cache may increase system perform-
ance, depending on how the extended BIOS is accessed. The default is
Disabled .