Kontron ETX-LX2, Manual

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10 Appendix B: System Resources
Kontron User's Guide ETX®-LX2 31
10.3 Memory Area
Upper Memory Used for Available Comment
C0000h
–
C7FFFh VGA BIOS No
C8000h
–
E7FFFh
User Area (128k max)
SATA Controller
PXE OPROM
Yes
If enabled SATA Controller needs 64k
and PXE OPROM 40k
E8000h - FFFFFh System BIOS No
10.4 I/O Address Map
The I/O-port addresses of the ETX®-LX are functionally identical with a standard PC/AT.
The following I/O ports are used:
I/O Address Used for Comment
00h
–
0Fh
C0h
–
DFh
8237DMA Controller
20h, 21h 8259A PIC
2Eh, 2Fh SuperIO Access Port
40h
–
43h(XT/AT)
44h
–
47h(PS/2)
8254PIT
4Eh, 4Fh 85226 LPC to ISA
60h
–
64h KeyBoard Controller
90h
–
96h PS/2 P OS
A0h, A1h 8259A PIC
F0h
–
FFh Math Co-Processor,X87 Unit
1F0h
–
1F7h Primary IDE
200h
–
22Fh GAME I/O
220h
–
22Fh Sound Blaster / AD Lib
295h, 296h HW Monitor Access Port
279h, A79h Plus and Play Configuration Register
2F8h
–
2FFh COM2
330h, 331h MIDI Port
378h
–
37Ah Parallel Printer Port
3B0h
–
3BFh MDA / MGA
3C0h
–
3CFh EGA / VGA
3D4h
–
3D9h CGA/CRT Register, Controller and Palette Register
3F0h
–
3F7h Floppy Diskette
3F6h, 3F7h Enhanced IDE
3F8h
–
3FFh COM1
0CF8h PCI Configuration Register/Address
0CFCh PCI Configuration Register/data