
133
ATmega64A [DATASHEET]
8160D–AVR–02/2013
16.11.18 ETIMSK – Extended Timer/Counter Interrupt Mask Register Note:
1. This register is not available in ATmega103 compatibility mode.
Bit 7:6 – Reserved Bits
These bits are reserved for future use. For ensuring compatibility with future devices, these bits must be set to zero
when ETIMSK is written.
Bit 5 – TICIE3: Timer/Counter3, Input Capture Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally enabled), the
57) is executed when the ICF3 flag, located in ETIFR, is set.
Bit 4 – OCIE3A: Timer/Counter3, Output Compare A Match Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally enabled), the
Timer/Counter3 Output Compare A Match interrupt is enabled. The corresponding Interrupt Vector
(see “Inter- Bit 3 – OCIE3B: Timer/Counter3, Output Compare B Match Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally enabled), the
Timer/Counter3 Output Compare B Match interrupt is enabled. The corresponding Interrupt Vector
(see “Inter- Bit 2 – TOIE3: Timer/Counter3, Overflow Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally enabled), the
executed when the TOV3 flag, located in ETIFR, is set.
Bit 1 – OCIE3C: Timer/Counter3, Output Compare C Match Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally enabled), the
Timer/Counter3 Output Compare C Match interrupt is enabled. The corresponding Interrupt Vector
(see “Inter- Bit 0 – OCIE1C: Timer/Counter1, Output Compare C Match Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally enabled), the
Timer/Counter1 Output Compare C Match interrupt is enabled. The corresponding Interrupt Vector
(see “Inter-16.11.19 TIFR – Timer/Counter Interrupt Flag Register Note:
1. This register contains flag 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
7654
3210
–
TICIE3
OCIE3A
OCIE3B
TOIE3
OCIE3C
OCIE1C
ETIMSK
Read/Write
R
R/W
Initial Value
0000
Bit
765
43210
OCF2
TOV2
ICF1
OCF1A
OCF1B
TOV1
OCF0
TOV0
TIFR
Read/Write
R/W
Initial Value
000
00000