Jameco Electronics 3000 User Manual
24
Rabbit 3000 Microprocessor
Figure 3-3. Example of Memory Mapping Operation
The names given to the segments in the figure are evocative of the common uses for each
segment. The root segment is mapped to the base of flash memory and contains the startup
code as well as other code that may happen to be stored there. The data segment usage
varies depending on the overall strategy for setting up memory. It may be an extension of
segment. The root segment is mapped to the base of flash memory and contains the startup
code as well as other code that may happen to be stored there. The data segment usage
varies depending on the overall strategy for setting up memory. It may be an extension of
10000
E000
D000
7000
0000
16-bit
address space
address space
XPC
segment
segment
stack segment
data segment
root segment
7
D
20-bit
address space
address space
00000
07000
07000
79
80000
79
80000
0D000
80
8D000
80
8D000
0E000
85
93000
85
93000
SEGSIZE
register
register
10000
85
80
79
XPC register
STACKSEG register
DATASEG register