MB89636 Fujitsu Media Devices, MB89636 Datasheet - Page 20

• Manufacturer Part Number: MB89636
• Description: (MB89630 Series) 8-bit Proprietary Microcontroller
• Manufacturer: Fujitsu Media Devices

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DataSheet
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4
MB89630 Series
1. Memory Space
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CPU CORE
The microcontrollers of the MB89630 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 MB89630 series is structured as illustrated below.
Memory Space
*1: The ROM area is an external area depending on the mode.
*2: Addresses 8000
The internal ROM cannot be used on the MB89T635 and MB89T637.
this area for the MB89PV630 and MB89637.
FFFF
0000
0080
0100
0200
0480
8000
8007
H
H
H
H
H
H
H
H
MB89PV630
External ROM
Register
External area
32 KB
RAM
1 KB
I/O
*2
H
to 8006
H
C000
FFFF
0000
0080
0100
0200
0280
for the MB89P637 and MB89W637 comprise an option area, do not use
H
H
H
H
H
H
H
Register
External area
MB89635
MB89T635
ROM*
512 B
16 KB
RAM
I/O
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1
FFFF
A000
0000
0080
0100
0200
0380
H
H
H
H
H
H
H
Register
External area
MB89636
ROM*
768 B
24 KB
RAM
I/O
1
FFFF
0000
0080
0100
0200
0480
8000
8007
H
H
H
H
H
H
H
H
Register
MB89637
MB89T637
MB89P637
MB89W637
External area
ROM*
32 KB
RAM
1 KB
I/O
*2
1