參數(shù)資料
型號： MQ80C52TXXX-16SHXXX:RD
廠商： TEMIC SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44
文件頁數(shù)： 28/83頁
文件大?。?/td> 8336K
26
8021G–AVR–03/11
ATmega329P/3290P
7.6.5
GPIOR2 – General Purpose I/O Register 2
7.6.6
GPIOR1 – General Purpose I/O Register 1
7.6.7
GPIOR0 – General Purpose I/O Register 0
Assembly Code Example
EEPROM_read:
; Wait for completion of previous write
sbic
EECR,EEWE
rjmp
EEPROM_read
; Set up address (r18:r17) in address register
out
EEARH, r18
out
EEARL, r17
; Start eeprom read by writing EERE
sbi
EECR,EERE
; Read data from Data Register
in
r16,EEDR
ret
C Code Example
unsigned char
EEPROM_read(unsigned int uiAddress)
{
/* Wait for completion of previous write */
while(EECR & (1<<EEWE))
;
/* Set up address register */
EEAR = uiAddress;
/* Start eeprom read by writing EERE */
EECR |= (1<<EERE);
/* Return data from Data Register */
return EEDR;
}
Bit
765
43
210
MSB
LSB
GPIOR2
Read/Write
R/W
Initial Value
0
Bit
7
65432
10
MSB
LSB
GPIOR1
Read/Write
R/W
Initial Value
0
00000
00
Bit
765
43
210
MSB
LSB
GPIOR0
Read/Write
R/W
Initial Value
0
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