Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

ATMEGA8515 Datasheet(PDF) 24 Page - ATMEL Corporation

Part # ATMEGA8515
Description  8-bit Microcontroller with 8K Bytes In-System Programmable Flash
Download  257 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA8515 Datasheet(HTML) 24 Page - ATMEL Corporation

Back Button ATMEGA8515_10 Datasheet HTML 20Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 21Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 22Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 23Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 24Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 25Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 26Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 27Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 28Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 24 / 257 page
background image
24
ATmega8515(L)
2512K–AVR–01/10
Preventing EEPROM
Corruption
During periods of low V
CC, the EEPROM data can be corrupted because the supply volt-
age is too low for the CPU and the EEPROM to operate properly. These issues are the
same as for board level systems using EEPROM, and the same design solutions should
be applied.
An EEPROM data corruption can be caused by two situations when the voltage is too
low. First, a regular write sequence to the EEPROM requires a minimum voltage to
operate correctly. Secondly, the CPU itself can execute instructions incorrectly, if the
supply voltage is too low.
EEPROM data corruption can easily be avoided by following this design
recommendation:
Keep the AVR RESET active (low) during periods of insufficient power supply volt-
age. This can be done by enabling the internal Brown-out Detector (BOD). If the
detection level of the internal BOD does not match the needed detection level, an
external low V
CC Reset Protection circuit can be used. If a Reset occurs while a
write operation is in progress, the write operation will be completed provided that the
power supply voltage is sufficient.
I/O Memory
The I/O space definition of the ATmega8515 is shown in “Register Summary” on page
239.
All ATmega8515 I/Os and peripherals are placed in the I/O space. The I/O locations are
accessed by the IN and OUT instructions, transferring data between the 32 general pur-
pose working registers and the I/O space. I/O Registers within the address range $00 -
$1F are directly bit-accessible using the SBI and CBI instructions. In these registers, the
value of single bits can be checked by using the SBIS and SBIC instructions. Refer to
the instruction set section for more details. When using the I/O specific commands IN
and OUT, the I/O addresses $00 - $3F must be used. When addressing I/O Registers as
data space using LD and ST instructions, $20 must be added to these addresses.
For compatibility with future devices, reserved bits should be written to zero if accessed.
Reserved I/O memory addresses should never be written.
Some of the Status Flags are cleared by writing a logical one to them. Note that the CBI
and SBI instructions will operate on all bits in the I/O Register, writing a one back into
any flag read as set, thus clearing the flag. The CBI and SBI instructions work with reg-
isters $00 to $1F only.
The I/O and Peripherals Control Registers are explained in later sections.


Similar Part No. - ATMEGA8515_10

ManufacturerPart #DatasheetDescription
logo
ATMEL Corporation
ATMEGA8515-16AC ATMEL-ATMEGA8515-16AC Datasheet
2Mb / 254P
   8-bit AVR Microcontroller with 8K Bytes In-System Programmable Flash
ATMEGA8515-16AC ATMEL-ATMEGA8515-16AC Datasheet
235Kb / 21P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
ATMEGA8515-16AI ATMEL-ATMEGA8515-16AI Datasheet
2Mb / 254P
   8-bit AVR Microcontroller with 8K Bytes In-System Programmable Flash
ATMEGA8515-16AI ATMEL-ATMEGA8515-16AI Datasheet
235Kb / 21P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
ATMEGA8515-16AU ATMEL-ATMEGA8515-16AU Datasheet
2Mb / 254P
   8-bit AVR Microcontroller with 8K Bytes In-System Programmable Flash
More results

Similar Description - ATMEGA8515_10

ManufacturerPart #DatasheetDescription
logo
ATMEL Corporation
ATMEGA48V ATMEL-ATMEGA48V_06 Datasheet
3Mb / 374P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
ATMEGA88 ATMEL-ATMEGA88_1 Datasheet
369Kb / 10P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT89LP51 ATMEL-AT89LP51 Datasheet
4Mb / 113P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT89S52 ATMEL-AT89S52_08 Datasheet
576Kb / 38P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
ATMEGA88 ATMEL-ATMEGA88 Datasheet
210Kb / 20P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
ATTINY25B ATMEL-ATTINY25B Datasheet
254Kb / 7P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT90PWM3 ATMEL-AT90PWM3 Datasheet
3Mb / 365P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT90PWM1 ATMEL-AT90PWM1 Datasheet
399Kb / 20P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT89S52 ATMEL-AT89S52_05 Datasheet
478Kb / 39P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT90S8515 ATMEL-AT90S8515_01 Datasheet
2Mb / 112P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
More results


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




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   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