Atmel ATmega8535L - Timer;Counter Interrupt Mask Register - TIMSK(1)

115
ATmega8535(L)
2502K–AVR–10/06
Timer/Counter Interrupt Mask
Register – TIMSK
(1)
Note: 1. This register contains interrupt control bits for several Timer/Counters, but only
Timer1 bits are described in this section. The remaining bits are described in their
respective timer sections.
• Bit 5 – TICIE1: Timer/Counter1, Input Capture Interrupt Enable
When this bit is written to one and the I-flag in the Status Register is set (interrupts glo-
bally enabled), the Timer/Counter1 Input Capture interrupt is enabled. The
corresponding Interrupt Vector (see “Interrupts” on page 46) is executed when the ICF1
Flag, located in TIFR, is set.
• Bit 4 – OCIE1A: Timer/Counter1, Output Compare A Match Interrupt Enable
When this bit is written to one and the I-flag in the Status Register is set (interrupts glo-
bally enabled), the Timer/Counter1 output compare A match interrupt is enabled. The
corresponding Interrupt Vector (see “Interrupts” on page 46) is executed when the
OCF1A Flag, located in TIFR, is set.
• Bit 3 – OCIE1B: Timer/Counter1, Output Compare B Match Interrupt Enable
When this bit is written to one and the I-flag in the Status Register is set (interrupts glo-
bally enabled), the Timer/Counter1 output compare B match interrupt is enabled. The
corresponding Interrupt Vector (see “Interrupts” on page 46) is executed when the
OCF1B Flag, located in TIFR, is set.
• Bit 2 – TOIE1: Timer/Counter1, Overflow Interrupt Enable
When this bit is written to one and the I-flag in the Status Register is set (interrupts glo-
bally enabled), the Timer/Counter1 overflow interrupt is enabled. The corresponding
Interrupt Vector (see “Interrupts” on page 46) is executed when the TOV1 Flag, located
in TIFR, is set.
Bit 76543210
OCIE2 TOIE2 TICIE1 OCIE1A OCIE1B TOIE1 OCIE0 TOIE0 TIMSK
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Initial Value 0 0 0 0 0 0 0 0