DS07-16301-4E Datasheet, PDF (19/99 Pages) Fujitsu Component Limited. – 32-bit RISC Microcontroller CMOS FR30 Series

MB91101/MB91101A
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
Address
0000 0000H
0000 0400H
External ROM/external bus mode
I/O area
I/O area
Direct addressing area
See “s I/O MAP”
0000 0800H
0000 1000H
0000 1800H
Access inhibited
Embedded RAM
Access inhibited
0001 0000H
External area
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 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
19