Fujitsu CM71-00101-5E User Manual
6
CHAPTER 2 MEMORY ARCHITECTURE
2.1
FR Family Memory Space
The FR family controls memory space in byte units, and provides linear designation of
32-bit spaces. Also, to enhance instruction efficiency, specific areas of memory are
allocated for use as direct address areas and vector table areas.
32-bit spaces. Also, to enhance instruction efficiency, specific areas of memory are
allocated for use as direct address areas and vector table areas.
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Memory Space
Figure 2.1-1 illustrates memory space in the FR family.
For a detailed description of the direct address area, see Section "2.1.1 Direct Address Area", and for the
vector table area, see Section "2.1.2 Vector Table Area".
Figure 2.1-1 FR Family Memory Space
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Unused Vector Table Area
Unused vector table area is available for use as program or data area.
0000 0000
H
0000 0100
H
0000 0200
H
0000 0400
H
000F FC00
H
0010 0000
H
FFFF FFFF
H
Byte data
Half-word data
Word data
Vector table
initial area
initial area
Program or data area
000F FC00
H
TBR
TBR initial value
Direct address area
General addressing