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PDX3-090T DM&P Vortex86DX3 Panel PC with 9” WSVGA TFT LCD
2.6 System Mapping
Table 2-2 Technical Data Sheet
System Mapping
Memory Mapping
Address
Description
Usage
00000000-0009FFFF
System RAM
*
000A0000-000AFFFF
EGA/VGA Video Memory
*
000B0000-000B7FFF
MDA RAM, Hercules Graphics Display RAM
*
000B8000-000BFFFF
CGA Display RAM
*
000C0000-000C7FFF
EGA/VGA BIOS ROM
*
000C8000-000CFFFF
Boot ROM Enable
000CC000-000CFFFF
Console Redirection Enable
000D0000-000DFFFF
Expansion ROM Space
000E0000-000EFFFF
USB Legacy SCSI ROM Space
000F0000-000FFFFF
Motherboard BIOS
*
FEBEE000-FEBEEFFF
Standard OpenHCD USB Host Controller
*
FEBEFC00-FEBEFCFF
On board Ethernet Adapter
*
I/O Mapping
I/O Address
Owner
Usage
0000h - 000Fh
DMA 8237-1
*
0020h - 0021h
PIC 8259-1
*
0022h - 0023h
Indirect Access Registers
( 6117D configuration port )
*
0040h - 0043h
Timer counter 8254
*
0048h - 004Bh
PWM counter 8254
*
0060h
Keyboard / Mouse Data Port
*