
CHAPTER 3 CPU FUNCTION
User’s Manual U15905EJ2V1UD
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3.4
Address Space
3.4.1
CPU address space
The CPU of the V850ES/SA2 and V850ES/SA3 has 32-bit architecture and supports up to 4 GB of linear address
space (data space) for operand addressing (data access). It also supports up to 64 MB of linear address space
(program space) for instruction addressing. Note, however, that both the program and data spaces have areas that
are prohibited from being used. For details, refer to Figure 3-2.
Figure 3-1 shows the CPU address space.
Figure 3-1. CPU Address Space
Data area
(4 GB linear)
Program area
(64 MB linear)
CPU address space
FFFFFFFFH
04000000H
00000000H
03FFFFFFH