IPC/RSL8xxx-XxxxE: user documentation
DOC/IPC_RSL8-E; V1.9
© Syslogic Datentechnik AG, Switzerland, http://www.syslogic.com
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3.2.
Memory and I/O Resources
3.2.1.
General Memory Layout and Configuration
The RSL8 uses the same memory layout as a standard desktop PC. Three onboard devices ,
DRAM, graphics controller, and BIOS, make use of the 4 Gbyte (32-bit mode) / 64Gbyte (64-
bit mode) adressable memory space.
Address
Device / Register
Remarks
0000’0000..0009’FFFFH
640 kbyte Main Memory (DRAM)
000A’0000..000B’FFFFH
VGA Video Memory
000C’0000..000F’FFFFH
Configurable memory range (BIOS,
BIOS Extensions, DRAM or redirected
to PC/104 bus)
0010’0000.. FFFF’FFFF
H
2-4 Gbyte Main Memory (DRAM)
including graphics memory
(UMA)
0000’0001‘0000’0000..
0000’0001‘FFFF’FFFFH
optional 4 Gbyte Main Memory
(DRAM)
64-bit mode only
0000’00
02
‘0000’0000..
0000’00
0F
‘FFFF’FFFFH
up to top
64-bit mode only
Tab. 3 Physical Memory Address Space Layout
