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Chapter 4 CPU Architecture
9.Addressing
9. Addressing
Address space is 32-bit linear.

Map

Figure 9-1 Map
FR60’s logical address space is 4GB (232 addresses), CPU accesses the data linearly.

Direct Addressing Area

The following areas are used for I/O.
These spaces are referred to as direct addressing area where you can specify direct operand address by the
instruction.
These direct areas vary by data size to be accessed.
Byte access : 0 - 0FFH
Half-word access : 0 - 1FFH
Word access : 0 - 3FFH
0000 0000H
0000 0100H
0000 0200H
0000 0400H
Direct addressing area
000F FC00H
000F FFFFH
FFFF FFFFH
Byte data
Half-word data
Word data
Vector table