a) Explain the concept of 'interrupt' in the context of the CPU and some external 1/0...

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a) Explain the concept of 'interrupt' in the context of the CPU and some external 1/0 device, clearly outlining the micro-operations that take place before the Interrupt Service Routine is actually invoked. b) A device is of medium speed and always need to exchange 16KBytes (1KByte = 1024 bytes) of data with the system which must be done within 1 millisecond. A cycle stealing DMA scheme can provide approximately one cycle every four clock cycles to be 'stolen'. Estimate the minimum clock speed required in multiples of 100 MHz. a) Explain the concept of 'interrupt' in the context of the CPU and some external 1/0 device, clearly outlining the micro-operations that take place before the Interrupt Service Routine is actually invoked. b) A device is of medium speed and always need to exchange 16KBytes (1KByte = 1024 bytes) of data with the system which must be done within 1 millisecond. A cycle stealing DMA scheme can provide approximately one cycle every four clock cycles to be 'stolen'. Estimate the minimum clock speed required in multiples of 100 MHz.

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Part a Interrupt An interrupt is a signal to the CPU from a hardware device or software program that requires immediate attentionWhen an interrupt occursthe CPU saves its current state and jumps to a ... View the full answer