Texas Instruments TravelMate 2000 - Manual (Page 161)

Memory Areas in the TravelMate 2000
Internal Memory: 3 M byte
Boundary Extended Expanded Disable
100000H 0 K byte 2432 K byte 0 K byte
110000H 64 K byte 2368 K byte 0 K byte
140000H 256 K byte 2176 K byte 0 K byte
180000H 512 K byte 1920 K byte 0 K byte
200000H 1024 K byte 1152 K byte 256 K byte
240000H 1280 K byte 1152 K byte 0 K byte
300000H 2048 K byte 128 K byte 256 K byte
340000H 2304 K byte 128 K byte 0 K byte
400000H 2048 K byte 128 K byte 256 K byte
440000H 2304 K byte 128 K byte 0 K byte
Note: At least 128 K byte of memory is always assigned to Expanded memory.
A block of 128 K byte in the reserved memory area can also be assigned to Expanded memory. The
Expanded Memory Manager (EMM) manages the interface between the program and Expanded memory,
bringing data in and out through the page frame as required. Before you can use Expanded memory, you must
install the EMM4J.SYS device driver, as described below.
You do not need to install the Expanded memory driver unless your application program supports use of
Expanded memory.
Device Drivers
Four device drivers used for managing memory are included in ROM. They are:
EMM4J.SYS - device driver that supports LIM-EMS Expanded memory.
HIMEM.SYS - device driver that supports the use of Extended memory for storing a Terminate and Stay
Resident (TSR) program or device driver.
RAMDRIVE.SYS - device driver that supports RAM disks in conventional, Extended and Expanded
memory.
Configuring Memory H-5