Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

ATMEGA8515 Datasheet(PDF) 63 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) 63 Page - ATMEL Corporation

Back Button ATMEGA8515_10 Datasheet HTML 59Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 60Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 61Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 62Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 63Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 64Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 65Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 66Page - ATMEL Corporation ATMEGA8515_10 Datasheet HTML 67Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 63 / 257 page
background image
63
ATmega8515(L)
2512K–AVR–01/10
The following code example shows how to set port B pins 0 and 1 high, 2 and 3 low, and
define the port pins from 4 to 7 as input with pull-ups assigned to port pins 6 and 7. The
resulting pin values are read back again, but as previously discussed, a nop instruction
is included to be able to read back the value recently assigned to some of the pins.
Note:
1. For the assembly program, two temporary registers are used to minimize the time
from pull-ups are set on pins 0, 1, 6, and 7, until the direction bits are correctly set,
defining bit 2 and 3 as low and redefining bits 0 and 1 as strong high drivers.
Digital Input Enable and Sleep
Modes
As shown in Figure 30, the digital input signal can be clamped to ground at the input of
the Schmitt Trigger. The signal denoted SLEEP in the figure, is set by the MCU Sleep
Controller in Power-down mode and Standby mode to avoid high power consumption if
some input signals are left floating, or have an analog signal level close to V
CC/2.
SLEEP is overridden for port pins enabled as External Interrupt pins. If the External
Interrupt Request is not enabled, SLEEP is active also for these pins. SLEEP is also
overridden by various other alternate functions as described in “Alternate Port Func-
tions” on page 64.
If a logic high level (“one”) is present on an Asynchronous External Interrupt pin config-
ured as “Interrupt on Rising Edge, Falling Edge, or Any Logic Change on Pin” while the
external interrupt is not enabled, the corresponding External Interrupt Flag will be set
when resuming from the above mentioned sleep modes, as the clamping in these sleep
modes produces the requested logic change.
Assembly Code Example(1)
...
; Define pull-ups and set outputs high
; Define directions for port pins
ldi
r16,(1<<PB7)|(1<<PB6)|(1<<PB1)|(1<<PB0)
ldi
r17,(1<<DDB3)|(1<<DDB2)|(1<<DDB1)|(1<<DDB0)
out
PORTB,r16
out
DDRB,r17
; Insert nop for synchronization
nop
; Read port pins
in
r16,PINB
...
C Code Example
unsigned char
i;
...
/* Define pull-ups and set outputs high */
/* Define directions for port pins */
PORTB = (1<<PB7)|(1<<PB6)|(1<<PB1)|(1<<PB0);
DDRB = (1<<DDB3)|(1<<DDB2)|(1<<DDB1)|(1<<DDB0);
/* Insert nop for synchronization*/
_NOP();
/* Read port pins */
i = PINB;
...


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