Kontron COMe-cHL6, User Manual

Page: 51 / 113

COMe-cHL6 / System Resources
51
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