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Page 34 Express-IBE2

5. System Resources

5.1. 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 MSI Interrupts

(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 Onboard VGA BIOS

Intel 82579LM PXE option ROM when onboard

LAN boot ROM is enabled.

Marvell 88SE6101 option ROM.

640 K – 768 K A0000 – BFFFF 128 KB Legacy Video Buffer Area

0 K – 639 K 00000 – 9FFFF 640 KB DOS Area

5.2. Direct Memory Access Channels

Channel Number Data Width System Resource

0 8-bits

Parallel port(1)

1 8-bits

Parallel port(1)

2 8-bits

Diskette drive(1)

3 8-bits

Parallel port(1)

Reserved - cascade channel

5 16-bits

Generic

6 16-bits

Generic

7 16-bits

Generic

Notes:

(1) DMA channel 0/1/3 can be selected when using parallel port.

The floppy drive and parallel port cannot be used simultaneously.

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Adlink Express-IBE2 Manuale Utente Pagina 34