MB91110 Datasheet, PDF (17/112 Pages) Fujitsu Component Limited. – 32-Bit RISC Microcontroller

MB91110 Series
s MEMORY SPACE
The FR30 series has 4 Gbytes (2³² addresses) of logic address space which the CPU accesses linearly.
1. Memory Map
Internal ROM external bus modes
0000 0000H
I/O
0000 0400H
I/O
0000 0800H
0000 1000H
Access is prohibited
Built-in RAM 5 KB
0000 2400H
Access is prohibited
0001 0000H
External area
0008 0000H
Access is prohibited
000B C000H
I-RAM/ROM 16 KB
000C 0000H
External area
Direct addressing area
(Refer to "I/O MAP")
Operating as the internal ROM.
Reading mode only can be accessed
in the case of I-RAM.
0010 0000H
External area
FFFF FFFFH
Note : MB91110 series only supports internal ROM external bus mode.
• Direct addressing area
The following areas of the address space are used for I/O. This area is called the “direct addressing area” and
the address of the operand can be specified directly during instruction. The direct area differs depending on
data size to be accessed.
• Byte data access
: 0-0FFH
• Half-word data access : 0-1FFH
• Word data access
: 0-3FFH
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