Intel D915PSY Product Specification - Page 57
DMA Channels, Memory Map
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Technical Reference 2.2.2 Memory Map Table 12 lists the system memory map. Table 12. System Memory Map Address Range (decimal) 1024 K - 4194304 K 960 K - 1024 K 896 K - 960 K 800 K - 896 K Address Range (hex) 100000 - FFFFFFFF F0000 - FFFFF E0000 - EFFFF C8000 - DFFFF 640 K - 800 K 639 K - 640 K 512 K - 639 K 0 K - 512 K A0000 - C7FFF 9FC00 - 9FFFF 80000 - 9FBFF 00000 - 7FFFF Size 4095 MB 64 KB 64 KB 96 KB 160 KB 1 KB 127 KB 512 KB Description Extended memory Runtime BIOS Reserved Potential available high DOS memory (open to the PCI Conventional bus). Dependent on video adapter used. Video memory and BIOS Extended BIOS data (movable by memory manager software) Extended conventional memory Conventional memory 2.3 DMA Channels Table 13. DMA Channels DMA Channel Number 0 1 2 3 4 5 6 7 Data Width 8 or 16 bits 8 or 16 bits 8 or 16 bits 8 or 16 bits 8 or 16 bits 16 bits 16 bits 16 bits System Resource Open Parallel port Diskette drive Parallel port (for ECP or EPP) DMA controller Open Open Open 57