Electronic Components Datasheet Search
Selected language     English  ▼
Part Name
         Description


ATTINY2313 Datasheet(PDF) 33 Page - ATMEL Corporation

Part No. ATTINY2313
Description  8-bit AVR Microcontroller with 2K Bytes In-System Programmable Flash
Download  211 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
Logo 

 33 page
background image
33
ATtiny2313/V
2543C–AVR–12/03
System Control and
Reset
Resetting the AVR
During reset, all I/O Registers are set to their initial values, and the program starts exe-
cution from the Reset Vector. The instruction placed at the Reset Vector must be an
RJMP – Relative Jump – instruction to the reset handling routine. If the program never
enables an interrupt source, the Interrupt Vectors are not used, and regular program
code can be placed at these locations. The circuit diagram in Figure 14 shows the reset
logic. Table 15 defines the electrical parameters of the reset circuitry.
The I/O ports of the AVR are immediately reset to their initial state when a reset source
goes active. This does not require any clock source to be running.
After all reset sources have gone inactive, a delay counter is invoked, stretching the
internal reset. This allows the power to reach a stable level before normal operation
starts. The time-out period of the delay counter is defined by the user through the SUT
and CKSEL Fuses. The different selections for the delay period are presented in “Clock
Sources” on page 23.
Reset Sources
The ATtiny2313 has four sources of reset:
Power-on Reset. The MCU is reset when the supply voltage is below the Power-on
Reset threshold (VPOT).
External Reset. The MCU is reset when a low level is present on the RESET pin for
longer than the minimum pulse length.
Watchdog Reset. The MCU is reset when the Watchdog Timer period expires, the
Watchdog is enabled, and Watchdog Interrupt is disabled.
Brown-out Reset. The MCU is reset when the supply voltage V
CC is below the
Brown-out Reset threshold (VBOT) and the Brown-out Detector is enabled.
Figure 14. Reset Logic
MCU Status
Register (MCUSR)
Brown-out
Reset Circuit
BODLEVEL [2..0]
Delay Counters
CKSEL[3:0]
CK
TIMEOUT
DATA BUS
Clock
Generator
SPIKE
FILTER
Pull-up Resistor
Watchdog
Oscillator
SUT[1:0]
Power-on Reset
Circuit




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



Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
AT90S44338-Bit AVR Microcontroller with 4K Bytes of In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATTINY138-bit AVR Microcontroller with 1K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA165P8-bit AVR Microcontroller with 16K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA85158-bit AVR Microcontroller with 8K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA328-bit AVR Microcontroller with 32K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA168-bit AVR Microcontroller with 16K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
AT90S85158-Bit Microcontroller with 8K bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATTINY258-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
AT90S85158-Bit Microcontroller with 8K bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation

Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com 2003 - 2017    


Mirror Sites
English : Alldatasheet.com  , 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