Texas Instruments TMS570LC4357

NMPU Registers www.ti.com
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SPNU563A–March 2018
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System Memory Protection Unit (NMPU)
11.4.13 MPU Region Number Register (MPUREGNUM)
NOTE: MPUREGBASE0-7, MPUREGSENA0-7, MPUREGACR0-7, MPUREGAM0-7, MPUREGTA0-
7, and MPUREGMT0-7 registers are memory-mapped to just six different addresses. Which
region register is selected for read/write access is decided by the REGION field in the MPU
region number register (MPUREGNUM).
Figure 11-16. MPU Region Number Register (MPUREGNUM) [offset = 3Ch]
31 16
Reserved
R-0
15 4 3 0
Reserved REGION
R-0 R/WP-0
LEGEND: R/W = Read/Write; R = Read only; WP = Write in privileged mode only; -n = value after reset
Table 11-16. MPU Region Number Register (MPUREGNUM) Field Descriptions
Bit Field Value Description
31-4 Reserved 0 Reserved. Reads return 0.
3-0 REGION MPU Region Number. This field determines which MPU region registers are accessed. Writing this
register with a value greater than or equal to the number of implemented MPU regions (indicated by
MPUTYPE register) does not affect the NMPU functionality. Behavior will be same as that of reserved
space.
Read: Returns current value of REGION.
Write in Privilege:
0 Access MPU region 0 registers.
1h Access MPU region 1 registers.
2h Access MPU region 2 registers.
3h Access MPU region 3 registers.
4h Access MPU region 4 registers.
5h Access MPU region 5 registers.
6h Access MPU region 6 registers.
7h Access MPU region 7 registers.