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Explain the various modes in which DMAC works.
Working of Direct memory access controller:
The modes of operation has demand mode, block mode, single mode and cascade mode. Demand mode transfers data till an external EOP is input or till the DREQ input becomes inactive. Particular mode releases the HOLD after all byte of data transferred. Block mode automatically transfers the no. of bytes specified by the county register for the channel. Cascade mode is used while more than one 8237 is present into a system.
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how does the kb come across the sheet charge in the amperian sheet?
#I want to get lecture notes on Electronic device.and circuits .
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Q. Determine v o /v i for the circuit shown in Figure if the op amps are ideal.
Peak inverse Voltage Peak inverse voltage is important parameter in the design of rectifier circuit. PIV is the maximum voltage that appears across the device during its
what is emitter efficiency
ADI Add Immediate Instruction The bit data specified in the instruction is directly added with contents of accumulator and result of operation is stored in the accum
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