Address Space; Cpu Address Space And Physical Address Space - NEC V850ES/F 3-L Series User Manual

32-bit single-chip microcontroller

Table of Contents

CPU System Functions

3.4 Address Space

Afterwards the software can be evaluated using breakpoints and the user

resources (such as memory and I/O can be read or written.

For more information see Chapter 23 on page 723.

In the following sections, the address space of the CPU is explained. Size and

addresses of CPU address space and physical address space are explained.

The address range of data space and program space together with their wrap-

around properties are presented.

The CPU supports the following address space:

• 4 GB CPU address space

With the 32-bit general purpose registers, addresses for a 4 GB memory

can be generated. This is the maximum address space supported by the

• 64 MB physical address space

The CPU provides 64 MB physical address space. That means that a

maximum of 64 MB internal memory can be accessed.

Any 32-bit address is translated to its corresponding physical address by

ignoring bits 31 to 26 of the address. Thus, 64 addresses point to the same

physical memory address. In other words, data at the physical address

can additionally be accessed by addresses 0400 0000

, ..., F800 0000

User's Manual U18743EE1V2UM00

, or FC00 0000