ATMEGA165P-16MUR Atmel, ATMEGA165P-16MUR Datasheet - Page 41
ATMEGA165P-16MUR
Manufacturer Part Number
ATMEGA165P-16MUR
Description
IC MCU AVR 16K 16MHZ 64MLF
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA165P-16MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-VFQFN, Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8.9
8.9.1
8.9.2
8019K–AVR–11/10
Register Description
SMCR – Sleep Mode Control Register
PRR – Power Reduction Register
The Sleep Mode Control Register contains control bits for power management.
• Bits 3, 2, 1 – SM2:0: Sleep Mode Select Bits 2, 1, and 0
These bits select between the five available sleep modes as shown in
Table 8-2.
Note:
• Bit 1 – SE: Sleep Enable
The SE bit must be written to logic one to make the MCU enter the sleep mode when the SLEEP
instruction is executed. To avoid the MCU entering the sleep mode unless it is the programmer’s
purpose, it is recommended to write the Sleep Enable (SE) bit to one just before the execution of
the SLEEP instruction and to clear it immediately after waking up.
• Bit 7:4 - Res: Reserved bits
These bits are reserved and will always read as zero.
• Bit 3 - 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
0x33 (0x53)
Read/Write
Initial Value
Bit
(0x64)
Read/Write
Initial Value
SM2
0
0
0
0
1
1
1
1
1. Standby mode is only recommended for use with external crystals or resonators.
Sleep Mode Select
R
7
–
0
R
7
–
0
SM1
0
0
1
1
0
0
1
1
R
6
–
0
R
6
–
0
R
5
–
0
R
5
–
0
SM0
0
1
0
1
0
1
0
1
R
4
–
0
R
4
–
0
Sleep Mode
Idle
ADC Noise Reduction
Power-down
Power-save
Reserved
Reserved
Standby
Reserved
PRTIM1
R/W
3
0
SM2
R/W
3
0
(1)
PRSPI
R/W
2
0
SM1
R/W
2
0
PRUSART0
R/W
SM0
Table
1
0
ATmega165P
R/W
1
0
8-2.
PRADC
R/W
SE
0
0
R/W
0
0
SMCR
PRR
41
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