R01UH0823EJ0100 Rev.1.00
Page 322 of 1823
Jul 31, 2019
RX23W Group
17. Memory-Protection Unit (MPU)
17.2.2
Region-n End Page Number Register (REPAGEn) (n = 0 to 7)
This bit enables or disables the settings for the corresponding region.
This bit is cleared to 0 when the region invalidation operation register (MPOPI) invalidates all access-controlled areas.
UAC[2:0] Bits (Access Control Bits in User Mode)
These bits specify the access control in user mode.
REPN[27:0] Bits (Region-End Page Number)
These bits specify the page number where the region ends.
Specify a value that is greater than or equal to the page number where the corresponding region starts. The page specified
by the region-end page number is part of the target region for memory protection.
Address(es): REPAGE0 0008 6404h, REPAGE1 0008 640Ch, REPAGE2 0008 6414h, REPAGE3 0008 641Ch,
REPAGE4 0008 6424h, REPAGE5 0008 642Ch, REPAGE6 0008 6434h, REPAGE7 0008 643Ch
b31
b30
b29
b28
b27
b26
b25
b24
b23
b22
b21
b20
b19
b18
b17
b16
REPN[27:0]
Value after reset:
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
REPN[27:0]
UAC[2:0]
V
Value after reset:
x
x
x
x
x
x
x
x
x
x
x
x
0
0
0
0
x: Undefined
Bit
Symbol
Bit Name
Function
R/W
b0
Valid Bit
0: Region setting invalid
1: Region setting valid
R/W
b3 to b1
Access Control Bits in User
Mode
b3
0: Reading prohibited
1: Reading permitted
b2
0: Writing prohibited
1: Writing permitted
b1
0: Execution prohibited
1: Execution permitted
R/W
b31 to b4
REPN[27:0] Region-End Page Number
Page number where the region ends, for use in region determination R/W