AT90PWM81_14 Datasheet, PDF (49/327 Pages) ATMEL Corporation – Data and non-volatile program memory

AT90PWM81/161
6.8.2
PRR - Power Reduction Register
Bit
Read/Write
Initial Value
7
6
PRPSC2 -
R/W
R
0
0
5
4
3
PRPSCR PRTIM1 -
R/W
R/W
R
0
0
0
2
1
PRSPI
-
R/W
R
0
0
0
PRADC
R/W
0
PRR
• Bit 7 - PRPSC2: Power Reduction PSC2
Writing a logic one to this bit reduces the consumption of the PSC2 by stopping the clock to this
module. When waking up the PSC2 again, the PSC2 should be re initialized to ensure proper
operation.
• Bit 6 - Reserved
• Bit 5 - PRPSCR: Power Reduction PSC reduced
Writing a logic one to this bit reduces the consumption of the PSCR by stopping the clock to this
module. When waking up the PSCR again, the PSCR should be re initialized to ensure proper
operation.
• Bit 4 - PRTIM1: Power Reduction Timer/Counter1
Writing a logic one to this bit reduces the consumption of the Timer/Counter1 module. When the
Timer/Counter1 is enabled, operation will continue like before the setting of this bit.
• Bit 3 - Reserved
• Bit 2 - PRSPI: Power Reduction Serial Peripheral Interface
Writing a logic one to this bit reduces the consumption of the Serial Peripheral Interface by stop-
ping the clock to this module. When waking up the SPI again, the SPI should be re initialized to
ensure proper operation.
• Bit 1 - Reserved
• Bit 0 - PRADC: Power Reduction ADC
Writing a logic one to this bit reduces the consumption of the ADC by stopping the clock to this
module. The ADC must be disabled before using this function. The analog comparator cannot
use the ADC input MUX when the clock of ADC is stopped.
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