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:
0000000000000000
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
———————————— UHACI[2:0] —
Value after reset:
0000000000000000
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
HITI[7:0] 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
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