Memory Space - Fujitsu MB90335 Series Hardware Manual

MB90335 Series
2.2

Memory Space

2
F MC-16LX CPU has the memory space of 16Mbytes.
■ Overview of CPU Memory Space
2
An F MC-16LX CPU has 16Mbytes of memory space where all data program I/Os managed by the F
16LX CPU are located. The CPU accesses the resources by indicating their addresses using a 24-bit address
bus.
Figure 2.2-1 shows a sample relationship between the F
Figure 2.2-1 Sample Relationship between F
2
F MC-16LX device
2
F MC-16LX
CPU
*1: The size of the built-in ROM varies depending on the model.
*2: The size of the built-in RAM varies depending on the model.
*3: Access is not possible in single chip mode.
CM44-10137-6E
Programs
Peripheral circuits
Data
2
EI OS
Peripheral circuits
Interrupts
Peripheral circuits
General-purpose
ports
FUJITSU MICROELECTRONICS LIMITED
2
MC-16LX system and memory map.
2
MC-16LX System and Memory Map
FFFFFF
H
Vector table area
FFFC00
H
Program area
H *1
FF0000
100000
H
External area
010000
H
ROM area
(FF bank image)
008000
H
007900
H
*2
001900
H
Data area
000380
H
General-purpose registers
000180
H
2
EI OS
descriptor area
000100
H
External area
0000F0
H
Peripheral function
control register area
0000C0
H
Interrupt control
register area
0000B0
H
Peripheral function
control register area
000020
H
I/O port control
register area
000000
H
CHAPTER 2 CPU
2.2 Memory Space
ROM area
*3
I/O area
RAM area
*3
I/O area
2
MC-
21