I/O Address Map; Table 3-2. Memory Map; Table 3-3. I/O Address Map - Ampro Little Board 700 Reference Manual

Chapter 3

Table 3-2. Memory Map

Base Address
00000000h -
000A0000h -
000B0000h -
000B8000h -
000C0000h -
000F0000h -
00100000h -
FFF80000h -

I/O Address Map

Table 3-3 shows the I/O address map.

Table 3-3. I/O Address Map

Address (hex)
000-00F
020-021
040-043
060-06F
070-07F
080-09F
092
094
102
0A0-0BF
0C0-0DF
0F0-0FF
170-177
1F0-1F8
278-27F
2E8-2FF
2F8-2FF
378-37F
3C0-3DF
3E8-3EF
3F0-3F7
3F8-3FF
778-77A
CF8-CFF
24
Function
0009FFFFh Conventional Memory
000AFFFFh Graphics Memory
000B7FFFh Mono Text Memory
000BFFFFh Color Text Memory
000C7FFFh Standard Video BIOS
000FFFFFh System BIOS Area (Storage and RAM Shadowing)
04000000h Extended Memory (If onboard VGA is enabled, then the amount
of memory assigned is subtracted from extended memory)
FFFFFFFFh System Flash
Subsystem
Primary DMA Controller
Master interrupt Controller
Programmable Interrupt Timer (Clock/Timer)
Keyboard Controller
CMOS RAM, NMI Mask Reg, RT Clock
DMA Page Registers
Fast A20 gate and CPU reset
Motherboard enable
Video subsystem register
Slave Interrupt Controller
Slave DMA Controller #2
Math Coprocessor
Secondary IDE Hard Disk Controller
Primary IDE Hard Disk Controller
Parallel Printer
Serial Port 4 (COM4)
Serial Port 2 (COM2)
Parallel port (Standard and EPP)
VGA
Serial Port 3 (COM3)
Floppy Disk Controller
Serial Port 1 (COM1)
Parallel Port (ECP Extensions) (Port 378+400)
PCI bus Configuration Address and Data
Reference Manual
Hardware
LittleBoard 700