Electronic Components Datasheet Search
  New Zealand  ▼
ALLDATASHEET.CO.NZ

X  

Preview PDF HTML

ATmega328P Datasheet(PDF) 44 Page - ATMEL Corporation

Part # ATmega328P
Description  8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash
PDF  448 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega328P Datasheet(HTML) 44 Page - ATMEL Corporation

Back Button ATmega328P Datasheet HTML 40Page - ATMEL Corporation ATmega328P Datasheet HTML 41Page - ATMEL Corporation ATmega328P Datasheet HTML 42Page - ATMEL Corporation ATmega328P Datasheet HTML 43Page - ATMEL Corporation ATmega328P Datasheet HTML 44Page - ATMEL Corporation ATmega328P Datasheet HTML 45Page - ATMEL Corporation ATmega328P Datasheet HTML 46Page - ATMEL Corporation ATmega328P Datasheet HTML 47Page - ATMEL Corporation ATmega328P Datasheet HTML 48Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 44 / 448 page
background image
44
8161D–AVR–10/09
ATmega48PA/88PA/168PA/328P
9.11
Register Description
9.11.1
SMCR – Sleep Mode Control Register
The Sleep Mode Control Register contains control bits for power management.
• Bits 7..4 Res: Reserved Bits
These bits are unused in the ATmega48PA/88PA/168PA/328P, and will always be read as zero.
• Bits 3..1 – SM2..0: Sleep Mode Select Bits 2, 1, and 0
These bits select between the five available sleep modes as shown in Table 9-2.
Note:
1. Standby mode is only recommended for use with external crystals or resonators.
• Bit 0 – 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.
9.11.2
MCUCR – MCU Control Register
• Bit 6 – BODS: BOD Sleep
The BODS bit must be written to logic one in order to turn off BOD during sleep, see Table 9-1
on page 39. Writing to the BODS bit is controlled by a timed sequence and an enable bit,
BODSE in MCUCR. To disable BOD in relevant sleep modes, both BODS and BODSE must first
Bit
7
654
32
10
0x33 (0x53)
–
–
–
–
SM2
SM1
SM0
SE
SMCR
Read/Write
R
R
R
R
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Table 9-2.
Sleep Mode Select
SM2
SM1
SM0
Sleep Mode
00
0
Idle
0
0
1
ADC Noise Reduction
0
1
0
Power-down
0
1
1
Power-save
10
0
Reserved
10
1
Reserved
1
1
0
Standby(1)
1
1
1
External Standby(1)
Bit
7
6
5
4
3
2
1
0
0x35 (0x55)
–
BODS
BODSE
PUD
–
–
IVSEL
IVCE
MCUCR
Read/Write
R
R
R
R/W
R
R
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com