CONSIDERATIONS FOR USING TIMER INTERRUPTS

1.

Enable Interrupt by Setting Enable Bit in TMSK1 or TMSK2 -
LEAVE OTHER BITS UNCHANGED

• TMSK1 = TMSK1 | 0x40;

2.

Clear Timer Flag by Writing 1 to Flag Bit in TFLG1 or TFLG2 -
WRITE 0 TO ALL OTHER BITS

• TFLG1 = 0x40;

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Bill Rison
2000-02-23