Intel D865PERL Guia do Utilizador descarregar pdf (Página 101)

Technical Reference

101

Desktop Board Resources

Memory Map

Table 40. System Memory Map

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

1024 K - 4194304 K 100000 - FFFFFFFF 4095 MB Extended Memory

960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIOS

896 K - 960 K E0000 - EFFFF 64 KB Reserved

800 K - 896 K C8000 - DFFFF 96 KB Available high DOS memory (open to the

PCI bus)

640 K - 800 K A0000 - C7FFF 160 KB Video memory and BIOS

639 K - 640 K 9FC00 - 9FFFF 1 KB Extended BIOS data (movable by

memory manager software)

512 K - 639 K 80000 - 9FBFF 127 KB Extended conventional memory

0 K - 512 K 00000 - 7FFFF 512 KB Conventional memory

DMA Channels

Table 41. DMA Channels

DMA Channel Number Data Width System Resource

0 8 or 16 bits

1 8 or 16 bits Parallel port

2 8 or 16 bits Floppy drive

3 8 or 16 bits Parallel port (for ECP or EPP)

4 8 or 16 bits DMA controller

5 16 bits Open

6 16 bits Open

7 16 bits Open

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Intel D865PERL Guia do Utilizador Página 101