Atmel AVR User Manual

39. CLC – Clear Carry Flag
39.1. Description
Clears the Carry Flag (C) in SREG (Status Register).
Operation:
(i) C ← 0
Syntax: Operands: Program Counter:
(i) CLC None PC ← PC + 1
16-bit Opcode:
1001 0100 1000 1000
39.2. Status Register (SREG) and Boolean Formula
I T H S V N Z C
– – – – – – – 0
C 0
Carry Flag cleared.
Example:
add r0,r0 ; Add r0 to itself
clc ; Clear Carry Flag
Words 1 (2 bytes)
Cycles 1
Atmel AVR Instruction Set Manual [OTHER]
Atmel-0856L-AVR-Instruction-Set-Manual_Other-11/2016
67

Atmel AVR Specifications

General

Architecture	8-bit RISC
SRAM	Up to 16 KB
Clock Speed	Up to 20 MHz
Operating Voltage	1.8V to 5.5V
ADC	10-bit ADC
Communication Interfaces	SPI, I2C, USB
Packages	DIP, SOIC, QFN
Special Features	Watchdog Timer
Flash Memory	1KB to 256KB
EEPROM	64B to 4KB