Appendix A Configuration Options | 17 |
Memory Options
Default: Mapped, report all
Options: Unmapped
Report MCMaster memory
Mapped, Report all, <16M
Unmapped, <16M
Mapped, report MM, <16M
Mapped, report all
In this configuration, the MCMaster remaps memory so that, from the MCMaster CPU's point of view, its own memory appears "first." This means that DOS applications that run in low memory will be running in the MCMaster's onboard
The disadvantage of mapping is that another busmaster adapter in the system sees memory from the host system's point of view, while the MCMaster has its own viewpoint. We supply drivers to allow mapping to work under Windows 3.0/3.1 or OS/2 1.2/1.3 with busmastering SCSI controllers. Their use is explained in "Special Drivers for SCSI Adapters."
Unmapped
"Unmapped" mode is just what it says. If you select "Unmapped," the MCMaster's memory is at the top of the memory map from its own point of view as well as from the host point of view, thus eliminating the need for special drivers.
Report MCMaster Memory
If you select "Report MCMaster memory," any memory other than the MCMaster's memory is ignored by both the MCMaster and the host CPU. This combines the benefits of "Mapped" and "Unmapped" modes. Your applications are guaranteed to be running in the MCMaster's
MCMaster User’s Guide - Rev. B06 | Kingston Technology Company |