MB89656AR FUJITSU [Fujitsu Component Limited.], MB89656AR Datasheet - Page 20

• Manufacturer Part Number: MB89656AR
• Description: 8-bit Proprietary Microcontroller
• Manufacturer: FUJITSU [Fujitsu Component Limited.]

20
MB89650AR Series
1. Memory Space
CPU CORE
The microcontrollers of the MB89650AR series offer a memory space of 64 Kbytes for storing all of I/O, data,
and program areas. The I/O area is located at the lowest address. The data area is provided immediately above
the I/O area. The data area can be divided into register, stack, and direct areas according to the application.
The program area is located at exactly the opposite end, that is, near the highest address. Provide the tables of
interrupt reset vectors and vector call instructions toward the highest address within the program area. The
memory space of the MB89650AR series is structured as illustrated below.
Memory Space
0000
0080
0100
01FF
0480
8006
FFFF
*: This is an internal PROM on the MB89P657A.
Since addresses 8000
for the MB89PV650A.
H
H
H
H
H
H
H
MB89PV650A
Not available
MB89P657A
External
32 KB
ROM*
RAM
1 KB
I/O
Register
0000
0080
0100
0180
FFFF
E000
H
H
H
H
H
H
H
to 8005
MB89653AR
Not available
256 B
RAM
ROM
8 KB
I/O
H
Register
for the MB89P657A comprise an option area, do not use this area
0000
0080
0100
01FF
0280
C000
FFFF
H
H
H
H
H
H
H
MB89655AR
Not available
512 B
16 KB
RAM
ROM
I/O
Register
0000
0080
0100
01FF
0380
FFFF
A000
H
H
H
H
H
H
H
MB89656AR
Not available
768 B
24 KB
RAM
ROM
I/O
Register
0000
0080
0100
01FF
0480
8006
FFFF
H
H
H
H
H
H
H
MB89657AR
Not available
32 KB
RAM
1 KB
ROM
I/O
Register