SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
MPU Region Number (MPUNUMBER), offset 0xD98
NOTE
This register can only be accessed from privileged mode.
The MPUNUMBER register selects which memory region is referenced by the MPU Region Base Address (MPUBASE) and MPU Region Attribute and Size (MPUATTR) registers. Normally, the required region number should be written to this register before accessing the MPUBASE or the MPUATTR register. However, the region number can be changed by writing to the MPUBASE register with the VALID bit set (see Section 2.6.4). This write updates the value of the REGION field.
MPUNUMBER is shown in Figure 2-30 and described in Table 2-45.
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| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| RESERVED | |||||||||||||||
| R-0x0 | |||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RESERVED | NUMBER | ||||||||||||||
| R-0x0 | R/W-0x0 | ||||||||||||||