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Appendices
Appendices
A.1
Hardware Configuration
The following data explains the design of the I/O Map, Memory Map and Inter-
rupt Map, as well as additional hardware design items including the RAS feature.
A.1.1 I/O Map
0000H - 001FH
0020H - 003FH
0040H - 005FH
0060H - 006FH
0070H - 007FH
0080H - 009FH
00A0H - 00BFH
00C0H - 00DFH
00F0H - 00FFH
01F0H - 01FFH
0200H - 0207H
0290H - 0297H
0298H - 029FH
02E8H - 02EFH
02F8H - 02FFH
03B0H - 03BBH
03BCH - 03BFH
03C0H - 03DFH
03E8H - 03EFH
03F0H - 03F7H
03F8H - 03FFH
PL-B900/B910 Series Users Manual
Address
DMA controller (8237)
Interrupt controller (8259A)
System timer (8254)
Keyboard Controller
Real-time clock, NMI mask
DMA page register
Interrupt controller 2 (8259A)
DMA controller 2 (8237)
Numeric data processor
Hard disk (IDE)
Game I/O
Reserved
Reserved
Reserved
Serial port 2 (COM2) : General Use
Video controller (VGA)
Parallel port 1 (LPT1)
Video controller (VGA)
Reserved
Floppy disk controller
Serial port 1 (COM1) :General Use
A-1 Hardware Configuration
A-2 RAS Feature
AT System Device
System Device
System Monitor
RAS
Touch Panel Serial
Port 4 (COM4 ) (for
Standard monitor)
Serial port 3 (COM3)
App-1
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