Rainbow-electronics ATtiny26L Bedienungsanleitung PDF herunterladen (Seite 36)

ATtiny26(L)

1477B–AVR–04/02

Timer/Counter Interrupt Mask

• Bit 7 – Res: Reserved Bit

This bit is a reserved bit in the ATtiny26/L and always reads as zero.

• Bit 6 – OCIE1A: Timer/Counter1 Output Compare Interrupt Enable

When the OCIE1A bit is set (one) and the I-bit in the Status Register is set (one), the

Timer/Counter1 compare match A, interrupt is enabled. The corresponding interrupt at

vector $003 is executed if a compare match A occurs. The Compare Flag in

Timer/Counter1 is set (one) in the Timer/Counter Interrupt Flag Register.

• Bit 5 – OCIE1B: Timer/Counter1 Output Compare Interrupt Enable

When the OCIE1B bit is set (one) and the I-bit in the Status Register is set (one), the

Timer/Counter1 compare match B, interrupt is enabled. The corresponding interrupt at

vector $004 is executed if a compare match B occurs. The Compare Flag in

Timer/Counter1 is set (one) in the Timer/Counter Interrupt Flag Register.

• Bit 4..3 – Res: Reserved Bits

These bits are reserved bits in the ATtiny26/L and always read as zero.

• Bit 2 – TOIE1: Timer/Counter1 Overflow Interrupt Enable

When the TOIE1 bit is set (one) and the I-bit in the Status Register is set (one), the

Timer/Counter1 Overflow interrupt is enabled. The corresponding interrupt (at vector

$005) is executed if an overflow in Timer/Counter1 occurs. The Overflow Flag (Timer1)

is set (one) in the Timer/Counter Interrupt Flag Register – TIFR.

• Bit 1 – TOIE0: Timer/Counter0 Overflow Interrupt Enable

When the TOIE0 bit is set (one) and the I-bit in the Status Register is set (one), the

Timer/Counter0 Overflow interrupt is enabled. The corresponding interrupt (at vector

$006) is executed if an overflow in Timer/Counter0 occurs. The Overflow Flag (Timer0)

is set (one) in the Timer/Counter Interrupt Flag Register – TIFR.

• Bit 0 – Res: Reserved Bit

This bit is a reserved bit in the ATtiny26/L and always reads as zero.

Bit 76543210

$39 ($59) – OCIE1A OCIE1B ––TOIE1 TOIE0 – TIMSK

Read/Write R R/W R/W R R R/W R/W R

Initial Value 0 0 0 0 0 0 0 0

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 150 151

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Rainbow-electronics ATtiny26L Bedienungsanleitung Seite 36