The MCU control register contains the control bits for power management.
· Bit7– SE: Sleep Enable:
In order for the MCU to enter sleep mode after executing the SLEEP instruction, SE must be set. To ensure that entering sleep mode is an intentional behavior of the programmer, it is recommended to set SE only in the instruction before the SLEEP instruction. Once the MCU wakes up, SE is cleared immediately.
· Bit 6..4 –SM2..0: Sleep Mode Selection Bits 2, 1 and 0
are shown in Table 13. These bits are used to select the specific sleep mode.
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Recommended ReadingLatest update time:2024-11-16 10:35
ATmega32 EEPROM Data Memory
The ATmega32 contains 1024 bytes of EEPROM data memory. It exists as a separate data space and can be read and written byte by byte. The EEPROM life is at least 100,000 erase cycles. EEPROM access is determined by the address register, data register, and control register. P240 "Memory Programming" covers programming
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ATmega32 Timer/Counter Oscillator
For AVR microprocessors with timer/oscillator pins (TOSC1 and TOSC2), the crystal can be connected directly to these two pins without external capacitors. This oscillator is optimized for 32.768 kHz watch crystals. It is not recommended to input an oscillator signal to the TOSC1 pin.
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