Robo India in this presentation present how to perform single bit operation in AVR microcontroller namely Atmel Atmega 16, Atmega 8, Atmega 328, Atmega 32 etc. In This presentation exhibits step by step procedure to perform single bit operation. We welcome all of your query, we are found at- webstie: http://roboindia.com

2. If you have forgotten
AND – Multiply OR – ADD

3. #define SETBIT(ADDRESS,BIT) (ADDRESS |= (1<<BIT))
• Understanding (1<<BIT)
• 1 = 00000001
• BIT = any = 4(Ex)
• 1<<4 = 00000001<<4 (1 is left shifted 4 times)
• (1<<BIT) = 00010000

4. #define SETBIT(ADDRESS,BIT) (ADDRESS |= (1<<BIT))
• ADDRESS = PORTX = 00100100 (suppose)
• ADDRESS |= (1<<BIT))
⇒ ADDRESS = ADDRESS | (1<<BIT)
• ADDRESS | (1<<BIT) ⇒ 00100100 | 00010000
• Updated ADDRESS = 00110100
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5. #define CLEARBIT(ADDRESS,BIT) (ADDRESS &=~ (1<<BIT))
• ADDRESS = PORTX = 00110100 (suppose)
• ADDRESS &= ~(1<<BIT))
⇒ ADDRESS = ADDRESS & INVERTED(1<<BIT)
• ADDRESS & ~ (1<<BIT) ⇒ 00110100 & 11101111
• Updated ADDRESS = 00100100
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