TEE-Watchdog: Mitigating Unauthorized Activities within Trusted Execution Environments in ARM-Based Low-Power IoT Devices

Table 1

MPU_RBAR bits and description of individual register bits.

Bits	Bit name	Description
[0]	XN	1 = allow code execution from this region
		0 = do not allow code execution from this region
[2 : 1]	AP	Access permissions
		00 = read/write by privileged code only
		01 = read/write by any privilege code
		10 = read-only by privileged code only
		11 = read-only by any privilege code
[4 : 3]	SH	Shareability of the region
		00 = non-shareable
		01 = outer-shareable
		10 = inner-shareable
[31 : 5]	Base	Base address of the MPU-protected region