Digi 90031300 Manual Do Utilizador
T1 Modem Bank
86
Figure 30
Typical PC Memory Usage - 1st Megabyte
A0000h
AFFFFh
B0000h
BFFFFh
C0000h
C8000h
D8000h
CFFFFh
C7FFFh
D7FFFh
D0000h
DFFFFh
E0000h
EFFFFh
F0000h
FFFFFh
ESDI Hard Disk Drive
SCSI Interface
EGA/VGA ROM BIOS
System BIOS
BIOS Extensions (EBIOS)
EMM, LIM 4.0
Color Video Memory
System Memory (RAM)
System Memory (RAM)
in 640K systems
Can be used for peripherals
in 512K systems
Monochrome Video Memory
EGA/VGA Text Memory
512K
640K
1024K
(1 Meg)
0
00000h
80000h
90000h
7FFFFh
8FFFFh
9FFFFh
SCSI Interface
Ethernet
LAN Adapters
32K
64K
128K