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Chapter 2
CPU Basics
2.6 Memory Space
2.6.1
Overview
This LSI has 4 GB linear address space in which addresses are expressed with 32 bits. The address space consists
of the internal ROM space which places built-in memory (ROM/RAM) into the chip and the internal RAM space,
the control register space stored various control registers of the microcontroller core, the internal I/O space for the
interface of peripheral circuits. Instruction strings can be placed in the internal ROM space which places the inter-
nal memory (ROM) mainly stored instructions. Also, it is possible to execute by spacing instruction strings in the
internal RAM space temporarily. Data can be stored anywhere in memory, and can be referred via the MOV
instruction. Efficient programming is possible because all addressing modes can be used to access data.
Memory Space
II - 17
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