Datasheet

10.8.2. Power Reduction Register
Name: PRR
Offset: 0x64
Reset: 0x00
Property: R/W
Bit 7 6 5 4 3 2 1 0
PRCAN PRPSC PRTIM1 PRTIM0 PRSPI PRLIN PRADC
Access
R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0
Bit 6 – PRCAN: Power Reduction CAN
Writing a logic one to this bit reduces the consumption of the CAN by stopping the clock to this module.
When waking up the CAN again, the CAN should be re initialized to ensure proper operation.
Bit 5 – PRPSC: Power Reduction PSC
Writing a logic one to this bit reduces the consumption of the PSC by stopping the clock to this module.
When waking up the PSC again, the PSC should be re initialized to ensure proper operation.
Bit 4 – PRTIM1: Power Reduction Timer/Counter1
Writing a logic one to this bit shuts down the Timer/Counter1 module. When the Timer/Counter1 is
enabled, operation will continue like before the shutdown.
Bit 3 – PRTIM0: Power Reduction Timer/Counter0
Writing a logic one to this bit shuts down the Timer/Counter0 module. When the Timer/Counter0 is
enabled, operation will continue like before the shutdown.
Bit 2 – PRSPI: Power Reduction Serial Peripheral Interface
If using debugWIRE On-chip Debug System, this bit should not be written to one. Writing a logic one to
this bit shuts down the Serial Peripheral Interface by stopping the clock to the module. When waking up
the SPI again, the SPI should be re initialized to ensure proper operation.
Bit 1 – PRLIN: Power Reduction LIN
Writing a logic one to this bit reduces the consumption of the LIN controller by stopping the clock to this
module. When waking up the LIN controller again, the LIN controller should be re initialized to ensure
proper operation.
Bit 0 – PRADC: Power Reduction ADC
Writing a logic one to this bit shuts down the ADC. The ADC must be disabled before shut down. The
analog comparator cannot use the ADC input MUX when the ADC is shut down.
Atmel ATmega16M1/32M1/64M1 [DATASHEET]
Atmel-8209F-ATmega16M1/32M1/64M1_Datasheet_Complete-10/2016
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