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Appendix A
A.4 Memory Map
The MOPSlcdLX processor module can support up to 1 GB memory modules. As the MOPSlcdLX uses Shared
Memory Architecture (SMA) the amount of graphic memory reduces the available amount of system me-
mory. The first 640 kB of DRAM are used as main memory.
Using DOS, you can address 1 MB of memory directly. Memory area above 1 MB (high memory, extended
memory) is accessed under DOS via special drivers such as HIMEM.SYS and EMM386.EXE, which are part of
the operating system. Please refer to the operating system documentation or special textbooks for
information about HIMEM.SYS and EMM386.EXE.
Other operating systems (Linux or Windows versions) allow you to address the full memory area directly.
Upper Memory
A0000h – BFFFFh
C0000h – CBFFFh
CC000h – DFFFFh
E0000h – E7FFFh
E8000h – F0000h
A.5 PCI Devices
All devices follow the Peripheral Component Interconnect 2.2 (PCI 2.2) specification. The BIOS and OS
control memory and I/O resources. Please see the PCI 2.2 specification for details.
PCI Device (IDSEL)
Onboard Host Bridge
Onboard Graphic Controller
Ethernet 82551ER (AD19)
Onboard ISA Bridge
Onboard IDE Controller
Onboard USB Controller 1
Onboard USB Controller 2
Onboard Encryption Controller
Kontron User's Guide MOPSlcdLX
Use
Available
VGA Memory
No
VGA BIOS
No (Yes)
Yes
Yes
System BIOS
No
PCI IRQ
None
INTA#
INTC#
Discrete channel for Ethernet
None
None
INTD#
INTD#
INTA#
51
Comment
Mainly used by graphic adapter cards.
The VGA-BIOS exceeds the standard area of
C0000h - C7FFFh normally used by ISA VGA
cards. Free if VGA-BIOS only use 32 kB (e.g.
Onboard graphic).
Free for ISA bus or shadow RAM in standard
configurations.
If onboard LAN PXE ROM is enabled, or JRC is
used, a block is shadowed for BIOS extensions,
starting with first free area at CC000h or
D0000h, D4000h, D8000hor DC000h. (BIOS
extensions do not use the whole shadow block).
JRC is always starting at DE000h.
Free for ISA bus.
REQ / GNT
Integrated in chipset
-
Integrated in chipset
Integrated in chipset
Integrated in chipset
-
Integrated in chipset
-
Integrated in chipset
-
Integrated in chipset
System Resourcen
Comment
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