Cpu; Memory Space; Fig. 2.1 Memory Space Of Mb89950 Series Microcontrollers - Fujitsu F2MC-8L Family series Hardware Manual

CPU

MB89951
0000
H
I/O
0080
H
Reserved
00C0
H
RAM
0100
H
Register
0140
H
Vacant
F000
H
ROM

Fig. 2.1 Memory Space of MB89950 Series Microcontrollers

HARDWARE CONFIGURATION
This chapter describes each block of the CPU hardware.
2.1 CPU
This section describes the memory space and register composing CPU
hardware.

2.1.1 Memory Space

2
F MC-8L CPU has a memory space of 64 Kilobytes. All I/O, data, and
program areas are located in this space. The I/O area is near the lowest
address and the data area is immediately above it. The data area can be
divided into register, stack, and direct-address areas according to the
applications. The program area is located near the highest address, and
the tables of interrupt and reset vectors and vector-call instructions are at
the highest address in this area. Fig.2.1 shows the structure of the
memory space for the MB89950 series of microcontrollers.
MB89953
0000
H
I/O
0080
H
RAM
0100
H
Register
0180
H
Vacant
E000
H
ROM
2– 3
MB89P955
0000
H
I/O
0080
H
RAM
0100
H
Register
0200
H
0280
H
Vacant
C000
H
ROM
MB89PV950
0000
H
I/O
0080
H
RAM
0100
H
Register
0200
H
0480
H
Vacant
8000
H
ROM