• Delay
• _delay_ms(double __ms)
• _delay_us(double __us)
• _delay_loop_1(uint8_t __count)
• _delay_loop_2(uint16_t __count)
• void __builtin_avr_delay_cycles (unsigned long ticks)
• Instruction Set
• Status Register (SREG)
• Registers and Operands
• Interrupt Latency
• AVR Interrupts
• Interrupt Response Time
• Minimizing Interrupt Response Time:
• GCC Inline Assembly
• Constaraints
• AVR GCC ABI
• Register Layout
• Fixed Registers
• R0
• R1
• T
• Call-Used Registers
• R18–R27, R30, R31
• R0, T-Flag
• Call-Saved Registers
• R2–R17, R28, R29
• R1
• Frame Layout
• Calling Convention
• Reduced Tiny