upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 118

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 3
118
Figure 3-5
Figure 3-6
Caution
(1)
(2)
Wrap-around of data space
If an operand address calculation exceeds 32 bits, only the lower 32 bits of the
result are considered. Therefore, the addresses 0000 0000
are contiguous addresses. This results in a wrap-around of the data space:
Wrap-around of data space
Wrap-around of program space
If an instruction address calculation exceeds 26 bits, only the lower 26 bits of
the result are considered. Therefore, the addresses 0000 0000
03FF FFFF
program space:
Wrap-around of program space
No instruction can be fetched from the 4 KB area of 03FF F000
03FF FFFF
not execute any branch to this area.
Preliminary User’s Manual U17566EE1V2UM00
H
H
are contiguous addresses. This results in a wrap-around of the
because this area is defined as peripheral I/O area. Therefore, do
03FF FFFFH
0000 0000H
0000 0001H
03FF FFFEH
FFFF FFFEH
FFFF FFFFH
0000 0000H
0000 0001H
Program space
Program space
Data space
Data space
direction
direction
(+)
(+)
CPU System Functions
direction
direction
(-)
H
(-)
and FFFF FFFF
H
H
and
to
H