Datasheet

 2018 Microchip Technology Inc. Data Sheet Complete DS40002059A-page 30
ATxmega32E5/16E5/8E5
12.3.3 Power-save Mode
Power-save mode is identical to power down, with one exception. If the real-time counter (RTC) is enabled, it will keep run-
ning during sleep, and the device can also wake up from either an RTC overflow or compare match interrupt. Low power
mode option of 8MHz internal oscillator enables instant oscillator wake-up time. This reduces the MCU wake-up time or
enables the MCU wake-up from UART bus.
12.3.4 Standby Mode
Standby mode is identical to power down, with the exception that the enabled system clock sources are kept running while
the CPU, peripheral, and RTC clocks are stopped. This reduces the wake-up time. The low power option of 8MHz internal
oscillator can be enabled to further reduce the power consumption.
12.3.5 Extended Standby Mode
Extended standby mode is identical to power-save mode, with the exception that the enabled system clock sources are
kept running while the CPU and peripheral clocks are stopped. This reduces the wake-up time. The low power option of
8MHz internal oscillator can be enabled to further reduce the power consumption.