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3.4.2
Image
For instruction addressing, up to 16 MB of linear address space (program space) and an internal RAM area are
supported. Up to 4 GB of linear address space (data space) is supported for operand addressing (data access). In
the 4 GB address space, it seems that there are sixty-four 64 MB physical address spaces. This means that the same
64 MB physical address space is accessed, regardless of the values of bits 31 to 26.
Program space
Use prohibited area
Internal RAM area
Use prohibited area
External memory area
16 MB
Internal ROM area
(external memory area)
CHAPTER 3 CPU FUNCTION
Figure 3-2. Image on Address Space
Image 63
4 GB
Image 1
64 MB
Image 0
Preliminary User's Manual U15905EJ1V0UD
Data space
Peripheral I/O area
Internal RAM area
Use prohibited area
64 MB
External memory area
Internal ROM area
(external memory area)
71
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