Specifications

Memory and I/O Capability
Figures 5-5 and 5-6 show the factory default configuration for non-
DOS systems. Two of the sockets are configured to accept 64 Kbyte
EPROMs, one for the STD ROM software and the other for a user
EPROM. The other two sockets are configured for two 128 Kbyte
RAMs for a total of 256 Kbytes of user RAM. This memory
configuration might be used for an STD ROM system.
FFFFFh
D8000h
D7FFFh
40000h
3FFFFh
0h
32 Kbyte RAM Drive
and Timekeeper
128 Kbytes
w/ 64 Kbyte EPROM
On-board RAM
w/ 128 Kbyte RAMs
Note: Shaded portion represents off-board memory address space.
E0000h
DFFFFh
Figure 5–5. Non-DOS Factory Default Memory Map.
5-8