MB91F109PF データシートの表示（PDF） - Fujitsu

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MB91F109PF

32-bit RISC Microcontroller

Fujitsu 

MB91F109

s CPU CORE

1. Memory Space

The FR family has a logical address space of 4 Gbytes (232 bytes) and the CPU linearly accesses the memory

space.

• Memory space

• Memory Space

Address Single chip mode

0000 0000H

I/O Area

0000 0400H

I/O Area

0000 0800H

0000 1000H

0000 1800H

Access inhibited

RAM 2 Kbytes

Access inhibited

0001 0000H

Access inhibited

0008 0000H

Access inhibited

000C 0000H

RAM 2 Kbytes

000C 0800H

FLASH ROM

0010 0000H 254 Kbytes

Access inhibited

FFFF FFFFH

Internal ROM/

External ROM/

external bus mode external bus mode

I/O Area

I/O Area

I/O Area

I/O Area

Direct

addressing

area*

Access inhibited

RAM 2 Kbytes

Access inhibited

RAM 2 Kbytes

Access inhibited

Access inhibited

External area

Access inhibited

RAM 2 Kbytes

FLASH ROM

254 Kbytes

External area

External area

See “sI/O MAP”

*: Direct addressing area

The following areas on the memory space are assigned to direct addressing area for I/O. In these areas, an

address can be specified in a direct operand of a code.

Direct areas consists of the following areas dependent on accessible data sizes.

Byte data access: 000H to 0FFH

Half word data access: 000H to 1FFH

Word data access: 000H to 3FFH

Notes: Access to the external area can be execute in the single chip mode.

To access to the external area, select internal ROM external bus mode via mode resistor.

Never execute data access to the instruction ROM area.

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