2 memory area, 3 i/o address map, Memory area – Kontron COMe-mSP1 User Manual
Page 51: I/o address map, Come-msp1 / system resources
COMe-mSP1 / System Resources
5.2
Memory Area
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
Used for
Available
A0000h – BFFFFh
VGA Memory
No
C0000h – CFFFFh
VGA BIOS
No
D0000h – DFFFFh
-
Yes
E0000h – FFFFFh
System BIOS
No
5.3
I/O Address Map
I/O Address
Used for
Available
Comment
0000 - 001F
System Resources
No
Fixed
0020 - 003F
Interrupt Controller 1
No
Fixed
0040 - 005F
Timer, Counter
No
Fixed
0060 - 006F
Keyboard controller
No
Fixed
0070 - 007F
RTC and CMOS Registers
No
Fixed
0080
BIOS Postcode
No
Fixed
0084 - 008F
DMA Page Register
No
Fixed
0090 - 009F
System Control
No
Fixed
00A0 - 00BF
Interrupt Controller 2
No
Fixed
00E0 - 00EF
System Control
No
Fixed
00F0 - 00FF
Math Coprocessor
No
Fixed
0170 – 0177; 0376
Fixed Disk
No
Available if IDE port 1 is disabled
01F0 - 01F7; 03F6
Fixed Disk
No
Available if IDE port 1 is disabled
274 - 279
PnP Port
No
Fixed
03B0 - 03DF
VGA
No
Fixed
0400 - 043F
Chipset
No
Fixed
0480 - 04BF
Chipset
No
Fixed
04D0 - 04D1
Chipset
No
Fixed
0900 - 091F
Power Management
No
Fixed
09C0 - 09FF
GPE
No
Fixed
0A05 – 0A06
WB83627HG Hardware Monitor
No
Fixed if WB83627HG is in system
0A80 – 0A81
CPLD
No
Fixed
0CF8 - 0CFF
PCI Configuration
No
Fixed
D880 - D887
PCI LAN Controller
No
Dynamic (BIOS default address)
E080 - E09F
PCI USB Controller
No
Dynamic (BIOS default address)
E480 - E49F
PCI USB Controller
No
Dynamic (BIOS default address)
E880 - E887
VGA
No
Dynamic (BIOS default address)
EF00 - EF1F
PCI USB Controller
No
Dynamic (BIOS default address)
FFA0 - FFAF
PCI IDE Controller
No
Dynamic (BIOS default address)
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