Ems Mode Configuration - Everex EV-159 Owner's Manual And Reference Manual

3.3.2 EMS Mode Configuration
You can configure the RAM 3000 Deluxe for up to three
megabytes of RAM memory under the Lotus/In-
tel/Microsoft (LIM) Expanded Memory Specification
(Version 3.20). This EMS memory is a special type of
memory that allows specially-written software to access
program data far larger than the 640KB limit imposed by
DOS.
To configure the RAM 3000 Deluxe for EMS mode, you
need to perform the following three-step process.
Step One: Enabling EMS Mode
Before enabling the EMS mode on the RAM 3000 Deluxe,
make sure the contiguous memory space defined in Section
3.3.1: Memory Configuration (Part Three) is less than the
amount of memory chips installed on the RAM 3000
Deluxe.
The RAM 3000 Deluxe has two 110 ports available for EMS
data transfer; since each EMS I/O port accesses up to two
megabytes of EMS memory, enabling both EMS 110 ports
will allow access of up to three megabytes of EMS memory
on the RAM 3000 Deluxe.
To enable the EMS I/O ports, switch OFF either SWl
position 5 (EMS I/O Port 1) and/or SWl position 10 (EMS
I/O Port 2). (See Figure 1 for location of the SWl dipswitch).
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