Kontron JRexplus-DC - Manual (Page 66)

KTD-S0008-F Page 61 Appendix A: System Resources
JRexplus-DC User's Guide
A.2 Direct Memory Access (DMA) Channels
DMA # Used for Available Comment
0 Yes Possible channel of LPT - Note (1)
1 Yes Possible channel of LPT - Note (1)
2 Yes
3 Yes Possible channel of LPT - Note (1)
4 Cascade No
5 Yes
6 Yes
7 Yes
Note: 1) Possible setting for LPT if configured for ECP mode.
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
® versions) allow you to address the full memory area directly.
Memory Range Used for Available Comment
C0000h - CFFFFh VGA BIOS No
D0000h - DFFFFh Yes
E0000h - FFFFFh System BIOS No