0
If bus clock rate is 250MHz what is duration of each bus cycle?
Wiki User
∙ 14y ago
Cva:As bus cycle is not mentioned, hence assumed that bus cycle = clock rate = 250MHz.Duration of each bus cycle = 1 / 250M = 4ns;
Please, correct me if I am wrong.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is meant by clock pulse in computer organisation?
the timing of all registers in the basic computer is controlled by a master clock generation.the clock pulses are applied to all flip-flops and registers in the system,including the flip-flops and registers in the control unit.the clock pulses donot change the state of register until it recieves an signal from control unit,these control signals are generated in control unit and provide control inputs for multiplexers in common bus to choose a particular process register!
What controls the speed of the CPU?
1. Fab process. 45nm and 32nm allows to pack more transistor in a chip with less charge leakage and heat dissipation. 2. Clock frequency: higher clock frequency increases power consumption </a> as well as thermal dissipation. http://www.datadep.org
What are the features of spi protocol?
ANSWERI find it simplest to think of SPI as a way for two devices to trade the contents of their SPI registers. The master drives the clock (typically 8 or 16 clocks for 8 or 16 bit SPI registers) and when it has finished, the master's SPI register holds the value that the slave placed in its SPI register and the slave's SPI register holds the value that was in the master's SPI register.This requires three connections, a clock (driven by the master) and a data line from each device (master in/slave out, and master out/slave in).There are typically other connections required for practical purposes, such as interrupt and select lines.SPI is a synchronous protocol, so the clock signals do not have to be evenly spaced (constant frequency). The slave is only looking for the correct number of clock transitions.The master and slave must be set up to expect the data to be valid at the correct clock transitions (high-to-low or low-to-high). This is the concept of SPI "modes."Usually a slave device will trigger an internal interrupt when a new value arrives, and if the value is not read before a new value arrives, an overflow flag will be set, indicating the data has been lost.
What does 3Ghz mean?
3.06 GHz is equivalent to 3,060,000,000 Hz, or Hertz, named after Heinrich Hertz. Hz is the standard unit of measure for frequency, or the number of cycles per second. Hz are commonly used as a measure of the clock speed in a CPU.
What are the disadvantages and advantages of dynamic system development method?
Advantages of system development life cycle in terms of waterfall model it only requires minimal resources in implementing this method. But it is hard to go back and change.
Each tick of the system clock equates to a?
Each tick equates to a clock cycle.
What is the duration of the cardiac cycle?
It depends on the heart rate. You take 72 beats per minute. Then the duration of one beat is 75 per minute. Then each beat will take 0.8 second to complete. This is taken duration of the cardiac cycle. You take 100 beats per minute. Then each beat will take 0.6 second to complete. This duration will be the duration of the cardiac cycle.
Consider a 16 bit microprocessor with a 16 bit external data bus driven by an 8 bit MHz input cycleswhat is maximum data transfer rate across the bus that this microprocessor can sustain?
Minimum bus cycle duration = 4 clock cycles Bus clock = 8 MHz Maximum bus cycle rate = 8 M / 4 = 2 M /s Data transferred per bus cycle = 16 bit = 2 bytes Data transfer rate (per second) = Bus cycle rate * data per cycle = 2 M * 2 = 4 M bytes per second
What is pipelining in computers?
Pipelining is based if clock cycles to process a command, in every clock cycle , three or four circuits sat idle, Today these circuts are orginized in a conveyer belt fashoin called pipelining.With pipelining each stage does ots own job with each clock cycle pulse, creating a much more efficient process. The CPU has multiple circuts doing multiple jobs.
Is it true that the faster the machine cycle the faster your computer processes data?
Yes. The faster the computer's internal clock - the quicker it can process each piece of information.
Briefly explain why a CPU requires a number of clock cycles to carry out a single instruction?
A CPU requires a number of clock cycles to carry out a single instruction because the CPU is a state machine, and each state transistion is often a clock cycle. That's the brief answer. Expanding slightly...For instance, the 8085 requires three clock cycles to read or write one byte to or from memory or IO. It then requires one clock cycle to decode and execute the opcode. It requires three additional cycles for each further byte transferred, and sometimes two cycles for certain 16 bit register operations.At a lower level, more generalized for any type of CPU, it might take a clock cycle to load the accumulator with a register, another to add the accumulator to another register, and a third to store the accumulator back to the first register. That's just an example. It depends on the CPU's design.Internally, each clock cycle in the 8085 is actually two cycles with four edges between them. Without knowing Intel's internal design of the 8085, it is possible to think that four different state changes could occur for each external clock cycle. One could take this further, by introducing delay lines which could effect other state changes.
What is the function of READY pin of 8085?
The READY pin on the 8085 microprocessor is used to delay the completion of a bus transfer cycle. It is sampled by the 8085 at the falling edge of clock following ALE. If it is high, the cycle completes. If it is low, the cycle is extended by one clock, with all lines held steady - then it is sampled again at each of the next falling edges of clock until it is high. The purpose of READY is to allow (usually) memory devices to operate at a slower speed than the 8085.
What is the wait state in microprocessor?
The wait state, TWait, is a extra clock cycle added to the machine cycle to allow time for external hardware to respond. During this extra cycle, none of the address, data, or control pins change state. Wait state is entered if READY is false (LOW) on the rising edge of clock following ALE. READY is sampled each rising edge of clock thereafter and wait state will not be exited until READY is true (HIGH).
How many instructions are there in each clock cycle?
If this is a homework assignment, you really should try to answer it on your own first, otherwise the value of the reinforcement of the lesson due to actually doing the assignment will be lost on you.The number of clock cycles per instruction in the 8085 varies between 4 and 18, so the number of instructions per clock cycle varies between 0.25 and 0.056. This does not include wait states.
What is pipelining in pic microcontroller?
In PIC Microcontroller , During the Fatching of instruction no. 1it needs of one clock cycle, then after for the exicution of instruction no. 1 it reqires one extra clock cycle , but at the same time it fatches inst. no. 2 . Similarly, during the execution time of inst. no. 2 , it fatches inst. no. 3 and so on.In other words we can say that, PIC Microcontroller requires 2 clock cycle at starting the after it requires only one clock pulse. In this way we can say that instruction pipelining is done in PIC microcontroller.
What is the function of ready pin of 8085 microprocessor?
The READY pin on the 8085 microprocessor is used to delay the completion of a bus transfer cycle. It is sampled by the 8085 at the falling edge of clock following ALE. If it is high, the cycle completes. If it is low, the cycle is extended by one clock, with all lines held steady - then it is sampled again at each of the next falling edges of clock until it is high. The purpose of READY is to allow (usually) memory devices to operate at a slower speed than the 8085.
What is faradic stimulation?
it is a shor t duration interrupted direct current,with a pulse duration of 0.1-1 ms.a frequecy of 50-100hz. -it is unevenly alterntaing current,each cycle consisting of2 unequal phases,the first one is of low intensity & long duration,second one is high intensity & short duration
