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Chapter 1 23
Material Housing: MG-AL
Panel : Plastic
Indications Power LED, Sleep LED, Media Activity, Battery Charge, Caps Lock
Switch Power
Memory Address Map
Memory Address Size Function
00000000-0009FFFF 640 KB Base memory
000A0000-000BFFFF 128 KB Video memory
000C0000-000C9FFF 40 KB Video BIOS
000CA000-000CBFFF 8 KB I/O ROM
000E0000-000FFFFF 128 KB System BIOS
00100000-top limited
04301000-04301FFF
04302000-04302FFF
0430000-04300FFFF
--
4 KB
4 KB
64 KB
Extended (DIMM) memory
PCMCIA controller (slot 1)
PCMCIA controller (slot 2)
USB controller
FFFF0000-FFFFFFFF 64 KB System board extension for PnP
BIOS
I/O Address Map
I/O Address Function
000-00F DMA controller-1
020-021 Interrupt controller-1
040-043 Timer 1
060, 064 Keyboard controller 8742 chip select
061 System speaker out
040B DMA controller-1
061 System speaker
070-071 Real-time clock and NMI mask
080-08F DMA page register
0A0-0A1 Interrupt controller-2
0C0-0DF DMA controller-2
0F0-0FF Numeric data processor
120-13F
180-18F
Power management controller
170-177 2nd EIDE device (CD-ROM) select
1F0-1F7 1st EIDE device (hard drive) select
220-22F Audio
240-24F Audio (optional)
278-27F Parallel port 3
2E8-2EF COM4
2F8-2FF COM2 or FIR (optional)
378, 37A Parallel port 2
3BC-3BE Paraller port 1
3B0-3BB
3C0-3DF
Video Controller
Mechanical Specification
Item Specification
340SG.book Page 23 Thursday, October 28, 1999 10:51 AM