ATMEGA8515_10 datasheet(22/257 Pages) ATMEL

Part #	ATMEGA8515

Description	8-bit Microcontroller with 8K Bytes In-System Programmable Flash

Download	257 Pages

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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22 / 257 page

22

ATmega8515(L)

2512K–AVR–01/10

Assembly Code Example

EEPROM_write:

; Wait for completion of previous write

sbic

EECR,EEWE

rjmp

EEPROM_write

; Set up address (r18:r17) in address register

out

EEARH, r18

out

EEARL, r17

; Write data (r16) to data register

out

EEDR,r16

; Write logical one to EEMWE

sbi

EECR,EEMWE

; Start eeprom write by setting EEWE

sbi

EECR,EEWE

ret

C Code Example

void

EEPROM_write(unsigned int uiAddress, unsigned char ucData)

{

/* Wait for completion of previous write */

while(EECR & (1<<EEWE))

;

/* Set up address and data registers */

EEAR = uiAddress;

EEDR = ucData;

/* Write logical one to EEMWE */

EECR |= (1<<EEMWE);

/* Start eeprom write by setting EEWE */

EECR |= (1<<EEWE);

}

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ATMEGA8515 Datasheet(PDF) 22 Page - ATMEL Corporation

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