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Define device interface.
The buffer registers DATAIN and DATAOUT and the status flags SIN and SOUT are part of circuitry commonly called as a device interface.
What are the registers generally contained in the processor? MAR-memory address register MDR-memory data register IR-Instruction Register RO-Rn-General purpose registe
Explain what is DTMF signalling. Dual Tone Multi Frequency (DTMF) was initially introduced in 1963 with 10 buttons into Western Electric 1500 -type telephones. Dual Tone Multi
Reduce the following equation using k-map Y = BC‾D‾ + A‾BC‾D + ABC‾D + A‾BCD + ABCD Ans. Multiplying the first term with (A+A') Y = A'BC'D' + ABC'D' + A'BC'D + ABC'D + A'BCD + A
What is bus arbitration? It is method by which the next device to become the bus master is selected and bus mastership is transferred to it. There are two ways for doing this:
The logic 0 level of a CMOS logic device is approximately ? Ans. The low level is 0 volts approx in CMOS logic device.
Eight-stage process - Conjunctive normal forms: Hence we notice the following eight-stage process converts any sentence with CNF as: 1. Eliminate all arrow connectives by
Salient points about addressing mode are: This addressing mode is employed to initialise value of a variable. Benefit of this mode is that no extra memory accesses are
Motorola 68HC11 series is a family of micro controllers , each device contains slightly different functional blocks , however they are all based around the same microprocessor nam
Building the Structure Chart - Processes in the DFD tend to show single module on the structure chart Afferent processes - give inputs to system Central processes -
Q. F' (A, B, C, D) = (A + B + D')(A + C' + D')(A + B' + C') D' (A, B, C, D) = (A + B' + C + D')(A' + C' + D')(A' + B + D) Find the simplified function F and imple
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