CPU System Functions
3.4.2 Program and data space
Figure 3-4
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
CPU address space
User's Manual U18743EE1V2UM00
CPU address space
Chapter 3
Data area
(4 GB linear)
Program area
(64 MB linear)
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