Answer / anya

The 8051 has an internal RAM of 128 bytes,a total of 32
locations of this internal RAM kept aside for the purpose of
general(working)registers. these 32 bytes are divided into 4
banks each bank has eight registers,R0-R7. these are also
addressed by 00 H to 1F H.They access by choosing a
particular bank(B-0,B-1,B-2,B-3)using D4 and D3 bits of
Program status word(SFR). Actually when power is given to
8051, Bank-0 is selected.

as i m an electronics engineer,and doing testing course,if interviewer ask me a question that after being an engineer,why u choose testing field,what should i answer?

2 Answers   IBM, Nokia,

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What is the duty cycle in on-off control method?

0 Answers  

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Dear concern Plz provide me the solved papers of Railway section engineer in signal...

0 Answers  

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Explain the operation of 3φ bridge inverter for 1200 degree mode of operation with aid of relevant phase and line voltage waveforms?

0 Answers  

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What are the characteristics of an Ideal voltage source?

2 Answers   Bhel, Microsoft,

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What is a pn junction?

0 Answers  

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What are the main components used for isolating the power circuits, power semiconductor from the low-power circuit?

0 Answers  

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Telecom BSS related ques: For cascaded 1800 BTS with master 900 BTS,if 900 master BTS is down for its own equipment fault,cascaded slave 1800 BTS gets down/stop carrying traffic without any fault as BCCH and other controllong channels are in master 900 BTS.Is there any technology/system to turn the slave 1800 BTS to a single 1800 BTS autometcally when 900 master BTS is down for its own equipment fault???It is possible to make the slave 1800 BTS single live BTS manually.But I want to know the autometic system/process.if there is any....if not available, how can we generate the system??

3 Answers   Ericsson, Grameen Phone, Nokia, TATA, Telecom,

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What are the key inputs and factors considered to plan the number of SGSN/GGSN if you have to set up a Greenfield network?

0 Answers   Ooredoo,

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Explain what are the basic logic elements?

0 Answers  

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what is the difference between pre-emphasis and modulation?

0 Answers  

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disadvantages of delta modulation?

3 Answers   TCS,

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