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8051 Interrupts
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Contrast edge-triggered with level-triggered interrupts Program the 8051 for interrupt-based serial communication Define the interrupt priority of the 8051
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Six interrupts in the 8051
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Step in enabling an interrupt
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PROGRAMMING TIMER INTERRUPTS
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Roll-over timer flag and interrupt JNB TF, target
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Programming external hardware interrupts
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Sampling the low level-triggered interrupt
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Edge-triggered interrupts
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Sampling the edge-triggered interrupt
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RI and TI flags and interrupts
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Use of serial COM in the 8051
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Clearing RI and TI before the RETI instruction CLR TI ; CLR RI
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Interrupt priority upon reset
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Setting interrupt priority with the IP register
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