TCCR1A – Timer/Counter1 Control Register A
TCCR1B – Timer/Counter1 Control Register B
TCNT1L – Timer/Counter1 Low byte
TCNT1H – Timer/Counter1 High byte
OCR1AL – Output Compare Register 1 A Low byte
OCR1AH – Output Compare Register 1 A High byte
OCR1BL – Output Compare Register 1 B Low byte
OCR1BH – Output Compare Register 1 B High byte
ICR1L – Input Capture Register 1 Low byte
ICR1H – Input Capture Register 1 High byte
TIMSK – Timer/Counter Interrupt Mask Register
TIFR – Timer/Counter Interrupt Flag Register
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