2 memory area, 3 i/o address map, Memory area – Kontron COMe-cHL6 User Manual
Page 51: I/o address map, Come-chl6 / system resources
COMe-cHL6 / 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 infor- mation 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
Comment
A0000h – BFFFFh
VGA Memory
No
Mainly used by graphic controller
D0000h – DFFFFh
-
Yes
Free for shadow RAM in standard
configurations.
E0000h – FFFFFh
System BIOS
No
Fixed
E0000000h–FEAFFFFFh
PCIe/IGFX
No
Fixed
FEC00000 - FECFFFFF
IOAPIC/PCIe
No
Fixed
FED00000h-FED003FFh
HPET
No
Fixed
FED10000h-FED17FFFh
MCH
No
Fixed
FED18000h-FED18FFFh
DMI
No
Fixed
FED19000h-FED19FFFh
EPBA
No
Fixed
FED1C000h-FED1FFFFh
RCBA
No
Fixed
FED20000h FED3FFFFh
TXT
No
Fixed
FED40000h FED44FFFh
TPM
No
Fixed
FED45000h FED8FFFFh
TPM
No
Fixed
FED90000h-FED93FFFh
VT-d
No
Fixed
FEE00000h-FEEFFFFFh
MSI area
No
Fixed
FF000000h-FFFFFFFFh
BIOS Flash
No
Fixed
5.3
I/O Address Map
The I/O-port addresses of the are functionally identical to a standard PC/AT. All addresses not mentioned in this table
should be available. We recommend that you do not use I/O addresses below 0100h with additional hardware for
compatibility reasons, even if available.
I/O Address
Used for
Available
Comment
0000 - 001F
System Ressources
No
Fixed
0020 - 002D
Interrupt Controller
No
Fixed
002E - 002F
LPC SIO
No
Fixed
0030 - 003D
Interrupt Controller
No
Fixed
0040 - 0042
Timer, Counter
No
Fixed
0043
Reserved
No
Fixed
004E - 004F
LPC SIO
No
Fixed
0050 - 0052
Timer, Counter
No
Fixed
0053
Reserved
No
Fixed
0060 - 006F
Micro-, NMI controller
No
Fixed
0070
Reserved
No
Fixed
0071 - 0077
RTC Controller
No
Fixed
0080
BIOS Postcode
No
Fixed
0081 - 009F
Reserved
No
Fixed
00A0 - 00BD
Interrupt Controller
No
Fixed
00C0 - 00DF
Reserved
No
Fixed
00F0
Interrupt Controller
No
Fixed
0170 - 01F7
Sata Controller
No
Fixed
0200 - 020F
Game Port (LPC)
No
Fixed
0376
Sata Controller
No
Fixed
03F6
Sata Controller
No
Fixed
04D0 - 04D1
Interrupt Controller
No
Fixed
0CF9
Reset Generator
No
Fixed
0A00 - 0A0F
LPC
Yes
Routed to LPC
0A80 - 0A8F
CPLD
No
Fixed
0A90 - 0AFF
LPC
Yes
Routed to LPC
0CF8 - 0CFF
Chipset
No
Fixed
1000 - 13FF
Chipset, GPIO
No
Fixed
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