參數(shù)資料
型號(hào): MC80C52XXX-25/883
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CDIP40
文件頁數(shù): 27/83頁
文件大小: 8336K
代理商: MC80C52XXX-25/883
25
8021G–AVR–03/11
ATmega329P/3290P
The next code examples show assembly and C functions for reading the EEPROM. The exam-
ples assume that interrupts are controlled so that no interrupts will occur during execution of
these functions.
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);
}
相關(guān)PDF資料
PDF描述
MQ80C52EXXX-25:R 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44
MR80C32-12P883 8-BIT, 12 MHz, MICROCONTROLLER, CQCC44
MC80C32-36SHXXX 8-BIT, 36 MHz, MICROCONTROLLER, CDIP40
MQ80C32-20:RD 8-BIT, 20 MHz, MICROCONTROLLER, CQFP44
MQ80C52TXXX-16SHXXX:RD 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44
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