Direct Memory Access (Dma) Channels; Memory Map - Kontron MOPS/386A User Manual

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Direct Memory Access (DMA) Channels

20.2
DMA # Use
0
1
2 FDC
3 LPT1
4 Cascade
5
6
7
Notes:
(1) If the Used For device is disabled in setup, the corresponding DMA channel is
available for other devices.
(2) The DMA channel is only used in ECP mode; it is free in other modes.

Memory Map

20.3
The MOPS/386A processor module can come with up to 8MB of memory. The first 640KB of
DRAM are used as main memory.
Using DOS, you can address 1MB of memory directly. Memory area above 1MB (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.
MOPS/386A User's Guide
Available Comment
Yes
Yes
No Note (1)
No Note (2)
No
Yes
Yes
Yes
45 System-Resource Allocations