DS07-16303-3E Datasheet, PDF (17/97 Pages) Fujitsu Component Limited. – 32-bit RISC Microcontroller CMOS FR30 Series

MB91121
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
External ROM/external bus mode
0000 0000H
I/O
Direct addressing area
0000 0400H
I/O
See “s I/O MAP”
0000 0800H
0000 1000H
0000 2000H
0000 2800H
0000 3000H
0000 F000H
0000 F300H
0001 0000H
Access inhibited
Embedded RAM 4 KB
Y-RAM1
Y-RAM1
Access inhibited
DSP Macros
Access inhibited
External area
←Usable as RAM in the DSP Macros YBANK unused mode.
←Usable as RAM when DSP Macros is not used.
FFFF FFFFH
• 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 consist 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
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