Portwell ROBO-8914VG2AR, Руководство пользователя

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Appendix A
ROBO-8914VG2AR User’s Manual
System Memory Address Map
Each On-board device in the system is assigned a set of memory addresses, which
also can be identical of the device. The following table lists the system memory
address used.
Memory Area Size Device Description
0000-003F 1K Interrupt Area
0040-004F 0.3K BIOS Data Area
0050-006F 0.5K System Data
0700-0483 16K DOS
0484-053F 2.9K Program Area
0540-9EFE 614K [Available]
9EFE-9EFE 0.1K Unused
= Conventional memory ends at 640K =
9F00-9FBF 3K Extended BIOS Area
9FC0-9FFF 1K Unused
A000-AFFF 64K VGA Graphics
B000-B7FF 32K Unused
B800-BFFF 32K VGA Text
C000-CAFF 44K Video ROM
CB00-CC49 5.2K Unused
CC4A-CFFF 14K High RAM
D000-DFFF 64K Page Frame
E000-EEFF 60K Unused
EF00-EFFF 4K ROM
F000-FFFF 64K System ROM
HMA 64K First 64K Extended