A. memory & i/o maps, A.1 memory mapping – Kontron AT8050 User Manual
Page 137
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A-1
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A. Memory & I/O Maps
A.1
Memory Mapping
Address
Function
00000-9B7FF
0-622 KB DRAM
9B800-9FFFF
622KB - 640 KB XBDA; USB Legacy / BIOS Stack
A0000-BFFFF
Video DRAM
C0000-DBFFF
Optional ROM (Free)
LAN BIOS around 30KB if activated, address may vary
External Fiber Channel BIOS 18KB-64KB , address may vary
E0000-FFFFF
System BIOS
100000-PCI Memory
DRAM available
1MB to top of DRAM
System BIOS
See detailed map
to the right
0 - 622KB DRAM
Optional ROM (free)
Video DRAM
SAS BIOS
(18KB at runtime)
(if activated)
LAN BIOS (if activated) (~30KB)
100000h
A0000h
FFFFFh
E0000h
See Note 1
C0000h
A0000h
Note 1 : LAN BIOS address may vary
Note2: SAS BIOS address may vary.
Size is only 2KB if no device.
Optional ROM (Free)
See Note 2
XBDA; USB Legacy / BIOS Stack
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