Memory Space - Fujitsu F2MC-8FX Hardware Manual

CHAPTER 3 MEMORY SPACE
3.1

Memory Space

The memory space on the F
data, and program areas. The memory space includes special-purpose areas such as
the general-purpose registers and vector table.
Configuration of Memory Space
I/O area (addresses: 0000
• This area contains the control registers and data registers for on-chip peripheral resources.
• As the I/O area is allocated as part of memory space, it can be accessed in the same way as for memory.
It can also be accessed at higher speed by using direct addressing instructions.
Extended I/O area (addresses: 0F00
• This area contains the control registers and data registers for on-chip peripheral resources.
• As the extended I/O area is allocated as part of memory space, it can be accessed in the same way as for
memory.
Data area
• Static RAM is incorporated as the internal data area.
• The internal RAM capacity is different depending on the product.
• The RAM area from 80
• The area from 100
direct addressing instructions with the direct bank pointer set.
• Addresses 100
Program area
• ROM is incorporated as the internal program area.
• The internal ROM capacity is different depending on the model.
• Addresses FFC0
26
2
MC-8FX family is 64 K bytes, divided into I/O, extended I/O,
to 007F )
H H
to 0FFF
H
to FF can be accessed at higher speed by using direct addressing instructions.
H H
to 47F is an extended direct addressing area. It can be accessed at higher speed by
H H
to 1FF can be used as a general-purpose register area.
H H
to FFFF are used as the vector table.
H H
)
H