20.3.4 Configuration Change Protection (CCP)

This peripheral has registers that are under Configuration Change Protection (CCP). A given key must first be written to the CPU.CCP register, followed by a write access to the protected bits within four CPU instructions to be able to write to these registers.

Attempting to write to a protected register without following the appropriate CCP unlock sequence leaves it unchanged and returns a Bus error.

The following registers are under CCP:

Table 20-4. RSTCTRL - Registers Under CCP
Register	Key
RSTCTRL.SWRR	IOREG

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