How many operating modes are available in 8253 programmable interval timer?
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The timer has three counters, numbered 0 to 2. Each channel can be programmed to operate in one of six modes. Once programmed, the channels operate independently. Each counter has two input pins – "CLK" (clock input) and "GATE" – and one pin, "OUT", for data output.
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Answer:
The timer has three counters, numbered 0 to 2. Each channel can be programmed to operate in one of six modes. Once programmed, the channels operate independently. Each counter has two input pins – "CLK" (clock input) and "GATE" – and one pin, "OUT", for data output.
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