Program And Data Space - NEC V850E/Dx3 Preliminary User's Manual

CPU System Functions
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3.4.2 Program and data space

The CPU allows the following assignment of data and instructions to the CPU
address space:
• 4 GB as data space
The entire CPU address space can be used for operand addresses.
• 64 MB as program space
Only the lower 64 MB of the CPU address space can be used for instruction
addresses. When an instruction address for a branch instruction is
calculated and moved to the program counter (PC), then bits 31 to 26 are
set to zero.
Figure 3-4 shows the assignment of the CPU address space to data and
program space.
FFFF FFFFH
0400 0000H
03FF FFFFH
0000 0000H
Figure 3-4 CPU address space
Preliminary User's Manual U17566EE1V2UM00
CPU address space
Data area
(4 GB linear)
Chapter 3
Program area
(64 MB linear)
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