Address (hex)
00F0-00F0
00F1-00F1
00F8-00FF
0170-0177
01F0-01F7
0278-027A
02E8-02EF
02F8-02FF
0378-037A
03BC-03BE
03F0-03F5
03F6-03F6
03F7-03F7
03F8-03FF
04D0-04D0
04D1-04D1
0CF8-0CFF
Memory Addresses
Address Range (hex)
0000h to 9FFFFh
0A0000h to 0BFFFFh
0C0000h to 0C7FFFh
0C8000h to 0DFFFFh
0E0000h to 0FFFFFh
00100000-FFFFFFFF
FFFE0000-FFFE3FFF
FEC00000-FEC00FFF
FEE00000-FEE00FFF
Description
Clear math co-processor busy
Reset math co-processor
Match co-processor
Secondary PCI bus master EIDE driver (dual FIFO)
Primary PCI bus master EIDE driver (dual FIFO)
Printer port (LPT2)
Communications port (COM4)
Communications port (COM2)
Printer port (LPT1)
Printer port (LPT3)
Standard floppy disk controller
Primary PCI bus master EIDE driver (dual FIFO)
Standard floppy disk controller
Communications port (COM1)
Edge/level control register-INTCNTRL1
Edge/level control register-INTCNTRL2
PCI configure space control register
Size
Assignment
640 KB
Base memory
128 KB
Video Ram
32 KB
Video BIOS
96 KB
BIOS Extension ROM (AT bus used)
128 KB
PnP BIOS/APM BIOS
Extended Memory
16 KB
BIOS Rom Alias
4 KB
APIC
4 KB
APIC
77
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