DEC DECpc LPx User Manual

Device Mapping Digital DECpc LPx/LPx+
84 MCS Logistics Engineering - Nijmegen
Memory Map (LPx 560/566 Full Range)
Range
Function
Notes
0 KB to 512KB
main memory PC compatibility range
512KB to 1024KB (1MB)
main memory PC compatibility range
EISA/ISA memory lower limit
1MB to 16MB
main memory EISA/ISA memory upper limit
memory space gap PCI memory hole
(4MB max size)
16MB to 128MB
main memory Pentium upper limit
128MB to 4GB
PCI memory
Memory Map (LPx 560/566 PC Compatibility Range)
Address Range
Function
Size
0000 to 7FFFF
Main memory 512 KB
80000 to 9FFFF
Main/PCI/ISA memory 128 KB
A0000 to BFFFF
PCI/ISA video buffer memory 128 KB
C0000 to C7FFF
Video memory BIOS 32 KB
C8000 to DFFFF
PCI/ISA card BIOS and buffer
memory
96 KB
E0000 to EBFFF
ISA/PCI adapter RAM after
POSTUsed by BIOS Setup during
POST
64 KB
(48 KB if SCSI BIOS enabled)
EC000 to EFFFF
SCSI BIOS (if enabled) 16 KB
F0000 to FFFFF
Planar BIOS memory 64 KB

DEC DECpc LPx Specifications

General

Brand	DEC
Model	DECpc LPx
Category	Desktop
Language	English