TM4C1237D5PZ Datasheet, PDF (186/1306 Pages) Texas Instruments – Tiva Microcontroller

Cortex-M4 Peripherals
Bit/Field
4
3
2:0
Name
VALID
reserved
REGION
Type
WO
RO
RW
Reset
0
0
0x0
Description
Region Number Valid
Value Description
0 The MPUNUMBER register is not changed and the processor
updates the base address for the region specified in the
MPUNUMBER register and ignores the value of the REGION
field.
1 The MPUNUMBER register is updated with the value of the
REGION field and the base address is updated for the region
specified in the REGION field.
This bit is always read as 0.
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
Region Number
On a write, contains the value to be written to the MPUNUMBER register.
On a read, returns the current region number in the MPUNUMBER
register.
186
June 12, 2014
Texas Instruments-Production Data