ATmega16A datasheet(36/352 Pages) ATMEL

tên linh kiện	ATmega16A

Giải thích chi tiết về linh kiện	8-bit Microcontroller with 16K Bytes In-System Programmable Flash

PDF	352 Pages

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nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

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8154B–AVR–07/09

ATmega16A

9.10

9.10.1

MCUCR – MCU Control Register

The MCU Control Register contains control bits for power management.

• Bits 7, 5, 4 – SM2:0: Sleep Mode Select Bits 2, 1, and 0

These bits select between the six available sleep modes as shown in Table 9-2.

Note:

1. Standby mode and Extended Standby mode are only available with external crystals or

resonators.

• Bit 6 – 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 programmers

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

765

432

SM2

SM1

SM0

ISC11

ISC10

ISC01

ISC00

MCUCR

Read/Write

R/W

Initial Value

Table 9-2.

Sleep Mode Select

SM2

SM1

SM0

Sleep Mode

000

Idle

ADC Noise Reduction

010

Power-down

011

Power-save

100

Reserved

101

Reserved

110

Standby(1)

Extended Standby(1)

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