Direct Memory Access (Dma) Channels; Memory Area - Kontron MOPSlcdLX User Manual

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KTD-S0005-0
A.2

Direct Memory Access (DMA) Channels

DMA #
0
1
2
3
4
5
6
7
Note:
If the Used for device is disabled in the BIOS Setup the corresponding DMA channel is free.
1)
16 bit DMA channels not available.
2)
A.3

Memory Area

The first 640 kB of DRAM are used as main memory. DOS 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.
Other operating systems (Linux or Windows
Memory Range
C0000h - C7FFFh
C8000h - CFFFFh
D0000h - DFFFFh
E0000h - E7FFFh
E8000h - FFFFFh
Page 39
Used for
Available
Yes
Yes
Floppy Controller
No
Yes
Cascade
No
No
No
No
®
versions) allow you to address the full memory area directly.
Used for
Available
VGA BIOS
No
Yes
Yes
Yes
System BIOS
No
MOPSlcdLX User's Guide
Appendix A: System Resources
Comment
Note (1)
Note (2)
Note (2)
Note (2)
Comment
if onboard graphic controller is used
Free for ISA bus

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