R01UH0823EJ0100 Rev.1.00
Page 329 of 1823
Jul 31, 2019
RX23W Group
17. Memory-Protection Unit (MPU)
17.2.11
Instruction-Hit Region Register (MHITI)
Address(es): 0008 6528h
b31
b30
b29
b28
b27
b26
b25
b24
b23
b22
b21
b20
b19
b18
b17
b16
—
—
—
—
—
—
—
—
HITI[7:0]
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
—
—
—
—
—
—
—
—
—
—
—
—
UHACI[2:0]
—
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Function
R/W
b0
—
Reserved
The read value is 0. The write value should always be 0.
R/W
b3 to b1
UHACI[2:0] Instruction-Hit Region
Access Control Bits in
User Mode
b3
0: Reading prohibited
1: Read permitted
b2
0: Writing prohibited
1: Writing permitted
b1
0: Execution prohibited
1: Execution is permitted.
R
b15 to b4
—
Reserved
The read value is 0. The write value should always be 0.
R/W
b23 to
b16
Instruction-Hit Region
When the instruction memory-protection error generation bit
(MPESTS.IMPER) = 1, [b23:b16] = 0000 0000b indicates that attempted
access to the background region led to an instruction memory-protection
error.
Other than above
b23
0: Instruction memory-protection error was not generated in region 7.
1: Instruction memory-protection error was generated in region 7.
b22
0: Instruction memory-protection error was not generated in region 6.
1: Instruction memory-protection error was generated in region 6.
b21
0: Instruction memory-protection error was not generated in region 5.
1: Instruction memory-protection error was generated in region 5.
b20
0: Instruction memory-protection error was not generated in region 4.
1: Instruction memory-protection error was generated in region 4.
b19
0: Instruction memory-protection error was not generated in region 3.
1: Instruction memory-protection error was generated in region 3.
b18
0: Instruction memory-protection error was not generated in region 2.
1: Instruction memory-protection error was generated in region 2.
b17
0: Instruction memory-protection error was not generated in region 1.
1: Instruction memory-protection error was generated in region 1.
b16
0: Instruction memory-protection error was not generated in region 0.
1: Instruction memory-protection error was generated in region 0.
R
b31 to
b24
—
Reserved
The read value is 0. The write value should always be 0.
R/W