Motherboard Resources - Mitsubishi Apricot LS Series Owner's Handbook Manual

Motherboard Resources

Memory Map
Address Range
(Decimal)
1024K-393216K
1008K-1024K
1000K-1008K
996K-1000K
992K-996K
928K-992K
896K - 928K
800K-896K
640K-800K
639K-640K
512K-639K
0K-512K
I/O Map
Address (hex)
0000 - 000F
0020 - 0021
002E - 002F
0040 - 0043
0048 - 004B
0060
0061
0064
Address Range
(hex)
100000-18000000 383MB Extended memory
FC000-FFFFF
FA000-FBFFF
F9000-F9FFF
F8000-F8FFF
E8000-F7FFF
E0000 - E7FFF
C8000-DFFFF
A0000-C7FFF
9FC00-9FFFF
80000-9FBFF
00000-7FFFF
Size Description
16 bytes PIIX4 - DMA 1
2 bytes PIIX4 - Interrupt Controller 1
2 bytes SuperI/O Controller Config. Reg.
4 bytes PIIX4 - Timer 1
4 bytes PIIX4 - Timer 2
1 byte Keyboard Controller Byte - Reset IRQ
1 byte PIIX4 - NMI, speaker control
1 byte Keyboard Controller, CMD/STAT Byte
S y s t e m m o t h e r b o a r d
Size Description
16K Boot Block
8K ESCD (Plug and Play
configuration and DMI)
4K Reserved for BIOS
4K OEM Logo/Scan User Flash
64K POST BIOS
32K POST BIOS (Available as UMB)
96K Available high DOS memory
(open to ISA and PCI bus)
160K Video memory and BIOS
1K Extended BIOS Data
(moveable by memory
management software)
127K Extended conventional
memory
512K Conventional memory
LS700 HANDBOOK 3/17