A memory clock frequency is 100 MHz. With data being transferred 64 bits a time over...
A memory clock frequency is 100 MHz. With data being transferred 64 bits a time over the bus,
what is the transfer rate in MB per second for DDR2 and DDR3 .
Homework Answers
Answer:-
-->With a memory clock frequency of 100MHz,DDR2 gives a maximum transfer of 3200MB/s
-->With a memory clock frequency of 100MHz,DDR3 gives a maximum transfer of 6400MB/s
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A memory clock frequency is 100 MHz. With data being transferred
64 bits a time over...
1. Fill in the blanks to configure the SCII module of HCS12 with the following settings 14400 baud (Bus clock is 24 MHz) SCI enabled in wait mode One start bit, 8 data bits, one stop bit Enable trans...
1. Fill in the blanks to configure the SCII module of HCS12 with the following settings 14400 baud (Bus clock is 24 MHz) SCI enabled in wait mode One start bit, 8 data bits, one stop bit Enable transmit and receive Enable TDRE (TX data register empty) interrupt Enable RDRF (RX data register full) interrupt No loop back Enablc parity checking and use odd parity ; ; 14400 baud SCI enabled in wait mode; enable parity and use odd parity...
Computer Architecture 2) (10 points) Consider a microprocessor driven by an 8-MHz input clock, with a...
Computer Architecture
2) (10 points) Consider a microprocessor driven by an 8-MHz input clock, with a 16-bit external data bus. Assume that this microprocessor has a bus cycle whose minimum duration equals 4 input clock cycles. A bus cycle is the number of clock cycles required to accomplish a task (such as data transfer). What is the maximum data transfer rate across the bus that this microprocessor can sustain, in bytes?
A byte-addressable memory system contains four memory modules each of which is 32 bits wide by...
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1. A hard disk drive transfers data 8 bytes at a time and has a peak data rate of 8 MB/s. To make sure old data is n...
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Question 4 - [25 Points] Part (a) - Average Access Time (AMAT) The average memory access time for a microprocessor with One (1) level (L1) of cache is 2.4 clock cycles - If data is present and val...
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1. Cache memory (8pts) Consider adding cache to a processor-memory system design. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it take...
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1. Cache memory (8pts) Consider adding cache to a processor-memory system desigrn. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it takes o...
1. Cache memory (8pts) Consider adding cache to a processor-memory system desigrn. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it takes only 4 clock cycles if the data happens to be in the cache and a total 20 clock cycles including the cache misses a. What is the performance ratio of the cache system to the non-cache system given a hit rate of 80%? b. For what hit rate...
Assume the cache can hold 64 kB. Data are transferred between main memory and the cache...
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Problem #3: Assume you have a 4.332 MHz master clock as an input to your counter,...
Problem #3: Assume you have a 4.332 MHz master clock as an input to your counter, and you need to generate evenly-spaced single-cycle pulses to enable a digital audio circuit at a target rate of 44,100 Hz. How many master clock cycles occur for every output pulse? Show your calculation. a) b) Since the result is fractional, round it to the nearest whole number. Assuming you use a Modulo-N counter to generate the single-cycle pulses, what is the minimum counter...
Consider the organization of address bus and data bus in the following two ways • The...
Consider the organization of address bus and data bus in the following two ways • The address bus operates in parallel with the data bus • The address bus is multiplexed with the data bus i) Compare and contrast the two modes of operations. You should briefly explain their advantages and disadvantages. ii) With the aid of a diagram, explain what is burst mode and how burst mode can improve the efficiency of address buses. b) A machine is running...
1. Fill in the blanks to configure the SCII module of HCS12 with the following settings 14400 baud (Bus clock is 24 MHz) SCI enabled in wait mode One start bit, 8 data bits, one stop bit Enable transmit and receive Enable TDRE (TX data register empty) interrupt Enable RDRF (RX data register full) interrupt No loop back Enablc parity checking and use odd parity ; ; 14400 baud SCI enabled in wait mode; enable parity and use odd parity...
Computer Architecture
2) (10 points) Consider a microprocessor driven by an 8-MHz input clock, with a 16-bit external data bus. Assume that this microprocessor has a bus cycle whose minimum duration equals 4 input clock cycles. A bus cycle is the number of clock cycles required to accomplish a task (such as data transfer). What is the maximum data transfer rate across the bus that this microprocessor can sustain, in bytes?
1. A hard disk drive transfers data 8 bytes at a time and has a peak data rate of 8 MB/s. To make sure old data is not overwritten by new data in the device buffer during an input operation, the processor must sample the buffer at a rate of 8 MB/81000 K times per second Assume that each such interrogation and the associated data transfer takes 800 clock cycles in a processor with a 2.5 GHz. What fraction of...
Question 4 - [25 Points] Part (a) - Average Access Time (AMAT) The average memory access time for a microprocessor with One (1) level (L1) of cache is 2.4 clock cycles - If data is present and valid in the cache, it can be found in 1 clock cycle If data is not found in the cache, 80 clock cycles are needed to get it from off- chip memory Designers are trying to improve the average memory access time to...
1. Cache memory (8pts) Consider adding cache to a processor-memory system design. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it takes only 4 clock cycles if the data happens to be in the cache and a total 20 clock cycles including the cache misses. a. What is the performance ratio of the cache system to the non-cache system given a hit rate of 80%? b. For what hit rate...
1. Cache memory (8pts) Consider adding cache to a processor-memory system desigrn. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it takes only 4 clock cycles if the data happens to be in the cache and a total 20 clock cycles including the cache misses a. What is the performance ratio of the cache system to the non-cache system given a hit rate of 80%? b. For what hit rate...
Problem #3: Assume you have a 4.332 MHz master clock as an input to your counter, and you need to generate evenly-spaced single-cycle pulses to enable a digital audio circuit at a target rate of 44,100 Hz. How many master clock cycles occur for every output pulse? Show your calculation. a) b) Since the result is fractional, round it to the nearest whole number. Assuming you use a Modulo-N counter to generate the single-cycle pulses, what is the minimum counter...
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