Appendix D Memory Map - IBM 4840-563 System Reference Manual

Appendix D Memory Map

ADDRESS ADDRESS
RANGE (DEC) RANGE
(HEX)
0 to 639K 00000 to
9FC00
639K 9FC00 to
9FFFF
640K to 767K A0000 to
BFFFF
768K to 815K C0000 to
CBFFF
816K to 895K CC000 to
DFFFF
896K to 1MB E0000 to
FFFFF
1MB to 16MB 100000 to
FFFFFF
16MB to 4GB- 1000000 to
20M FEBFFFFF
4GB-20M to FEC00000 to
4GB-19M FECFFFFF
4GB-19M to FED00000 to
4GB-18M FEDFFFFF
4GB-18M to 4GB FEE00000 to
- 17M FEEFFFFF
4GB-17M to 4GB FEF00000 to
- 2M FFDFFFFF
4GB -2M to 4GB FFE00000 to
FFFFFFFF
SurePOS 500 Model XX3 Technical Reference, v 1.3
SIZE ISA BUS
DECODE
512K positive,
subtractive
1K positive,
subtractive
128K positive,
subtractive
48K positive,
subtractive
80K positive,
subtractive
128K positive,
subtractive
15MB positive,
subtractive
4060MB subtractive only
1MB subtractive only
1MB subtractive only
1MB subtractive only
15MB subtractive only
2MB subtractive only
81
DESCRIPTION
Conventional DOS memory
EBDA (Extended BIOS Data)
moveable by HIMEM, QEMM,
386MAX
Intel 82845GVLegacy Video
Buffer
Intel 82845GV Video ROM BIOS
(shadowed)
PCI/ISA Space, DOS memory
managers
System ROM BIOS (ISA Bus,
main memory shadowed) and
USB Legacy space
PCI/ISA Space
PCI Space
APIC Configuration space
PCI - hub interface
APIC Configuration space
PCI - hub interface
System ROM BIOS, extended
BIOS for PCI devices, A20 Alias
of System BIOS
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