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107
Table A–5 XE–900 SBC memory map
XE–900 SBC memory map
Start Addr (Hex)
End Addr (Hex)
Function
00000000
0009dfff
System Ram
0009e000
0009ffff
Reserved
000a0000
000bffff
Video RAM area
000c0000
000cdfff
Video ROM (virtual / shadow)
000ce000
000dffff
Unused / Available
000E0000
000fffff
BIOS ROM area (shadow)
00100000 (1MB)
Top of SDRAM –
following
System RAM
Top of SDRAM –
following, size
varies
Top of SDRAM –
following
ACPI Tables & Storage structures
Top of SDRAM –
Video RAM size
(set in setup)
Top of SDRAM
Reserved for onboard VGA use
Top of SDRAM
03ffffff
Unused
04000000 (1GB)
09ffffff
Assignable to PCI, Prefetchable memory
0a000000 (2.5GB)
ffefffff
Assignable to PCI, Non-Prefetchable memory
fff00000
ffffffff
Flash ROM (BOIS & Resources)
Switch settings
Table A 6 System configuration switches, Switch 2
Switch 2 – System Configuration
Label
Description
Position
S
System parameters option switch:
On = enable User Setup options*
Off = enable BIOS Setup default
1
X
reserved for future use
2
V
Video switch:
On = enable on-card video*
Off = disable on-card video
3
U1
User switch 1, default On
4
U2
User switch 2, default On
5
* = default
Summary of Contents for XE-900
Page 19: ...19 Figure 2 1 XE 900 SBC component diagram top ...
Page 20: ...20 Figure 2 2 XE 900 SBC component diagram bottom ...
Page 21: ...21 Figure 2 3 XE 900 SBC dimensions without Integrated Conductive Cooling System ...
Page 38: ...38 ...
Page 91: ...91 Figure 15 2 Dimensions for the Integrated Conductive Cooling System ...