Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 335 of 1823
Jul 31, 2019
RX23W Group 17. Memory-Protection Unit (MPU)
Figure 17.3 Flow of Determination for Instruction Access
Instruction access by the CPU
Yes
Access permitted
No
Permit instruction access
Generate an instruction
memory-protection error
Permit instruction access
Generate an instruction
memory-protection error
Access prohibited
(default)
Access permitted
Yes
No
Processor mode? Supervisor mode
Permit instruction access
User mode
Permit instruction access
Note 1. Permission takes priority when the settings lead to overlapping regions overlap and are not the same for the given regions
(this includes the background region).
Is memory protection
enabled?
Is access to an access-
control region?
Determination in accord with
the access-control information
for the given region*
1
Determination in accord with
The access-control information
for the background region
Access prohibited

Renesas RX Series Specifications

General

Brand	Renesas
Model	RX Series
Category	Microcontrollers
Language	English