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Express-IB Page 35

6. System Resources

6.1. System Memory Map

Address Range (decimal) Address Range (hex) Size Description

(4GB-2MB) FFE00000 – FFFFFFFF 2 MB High BIOS Area

(4GB-18MB) – (4GB-17MB-1) FEE00000 – FEEFFFFF 1 MB FSB Interrupt Memory Space

(4GB-20MB) – (4GB-19MB-1) FEC00000 – FECFFFFF 1 MB APIC Configuration Space

960 K – 1024 K F0000 – FFFFF 64 KB System BIOS Area

896 K – 960 K E0000 – EFFFF 64 KB Extended System BIOS Area

768 K – 896 K C0000 – DFFFF 128 KB PCI expansion ROM area

C0000 – C7FFF: Onboard VGA BIOS

CB800 – CC7FFF: Intel 82566DM PXE option

ROM when onboard LAN boot ROM is enabled.

CC800 – CD7FFF: Marvell 88E805 option ROM

when onboard LAN boot ROM is enabled.

640 K – 768 K A0000 – BFFFF 128 KB Video Buffer & SMM space

0 K – 640 K 00000 – 9FFFF 640 KB DOS Area

6.2. Direct Memory Access Channels

Channel Number Data Width System Resource

0 8-bits Generic

1 8-bits Generic

2 8-bits Generic

3 8-bits Generic

4 Reserved - cascade channel

5 16-bits Generic

6 16-bits Generic

7 16-bits Generic

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 79 80

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Adlink Express-IB Bedienungsanleitung Seite 35