17.2.3.2 Peripheral Usage in Sleep

Some peripherals that can operate in High-Power Sleep mode (VREGPM = ‘b00) will not operate as intended in the Low-Power Sleep modes (VREGPM = ‘b01 and ‘b11). The Low-Power Sleep modes are intended for use with the following peripherals:

• Brown-out Reset (BOR)
• Windowed Watchdog Timer (WWDT)
• External interrupt pin/interrupt-on-change pins

It is the responsibility of the end user to determine what is acceptable for their application when setting the VREGPM settings to ensure correct operation in Sleep.