Maximum propagation delay on this bus is 4 ns. The bus master takes 1.5 ns to place an address on the address lines. Slave devices require 3 ns to decode the address and a maximum of 5 ns to place the requested data on the data lines. Input registers connected to the bus have a minimum setup time of 1 ns. Assume that the bus clock has a 50% duty cycle; that is, the high and low phases of the clock are of equal duration. What is the maximum clock frequency for this bus?
Q: Consider the following TLB for with 6-bit VPNS and 8-bit PFNS: VPN PFN valid prot 54 184 1wx 42 197…
A: Since 8-bit processor has 8 bit address size and size of page number is 6 bit, hence number of bits…
Q: the AMAT (in number of clock pulses)?
A: The AMAT (in number of clock pulses)
Q: Suppose that a bus has 16 data lines and requires 4 cycles of 250 nsecs each to transfer data. The…
A: NOTE :- As per our guidelines we are supposed to answer only one question. Kindly repost other…
Q: Examination of the timing diagram of the 8237A indicates that once a block transfer begins, it takes…
A: 8237A is which refers to the direct memory access controllers which is the part of the MCS 85 of the…
Q: What addresses in the output portion of the datapath are mapped to the DSR and DDR respectively?…
A: Solution is:
Q: Let the page fault service time be 10ms in a computer with average memory access time being 20ns. If…
A: Question. Let the page fault service time be 10ms in a computer with average memory access time…
Q: Describe the effect that a single stuck-at-0 fault (i.e., regardless of what it should be, the…
A: The data Path is a drawn of a processor, since it implements the fetch decode execute cycle.
Q: ystems have a single bus that can be controlled by only one bus master at a time( and thus the CPU…
A: Lets see the solution.
Q: Given that a bus has 64 data lines and requires 4 cycles of 125 nanoseconds each to transfer data.…
A: Given data, the system bus has 64-bit data lines means it can transfer 64bit of information in one…
Q: Consider the following two operations: (a) PC = PC + 4; (b) PC = PC + offset (offset is a…
A: MIPS architecture is an estimated proportion of a computer raw handling power. They're often the…
Q: Consider a cache memory with blocks of 23 = words (1 word = 4 bytes) , with a bus Main Memory -…
A: Given Data : Block size = 8 words 1 word = 4 bytes Cache bits = 32 bits Address sending time = 1…
Q: Consider an 8-pin general purpose input/output port memory mapped to address adr_gpio_a. What does…
A: The correct answer of the questions is option("b") "Sets pin 2 as output, the remaining pins (0,1,…
Q: 4. Assume that the state of the 8088´s registers and memory is as follows: Memory [DS:100H] = 0FH…
A: So after executing the each instructions the results prodeuced in the destination operand are given…
Q: (a) Explain the use of TLBs to improve paging efficiency. (b) Consider a paging system with the…
A: A). To overcome this problem a high-speed cache is set up for page table entries called a…
Q: Consider a machine with 4-way set associative data cache of size 32 Kbytes and block size 8 byte.…
A: Given that cache size - 32 Kbytes Block size - 8 bytes Page size - 5 bytes 4- way set…
Q: Consider a system in which bus cycles takes 500 ns. Transfer of bus control in either direction,…
A: Given Time for Bus cycles = 500 ns Transfer of bus control = 250 ns I/0 device data transfer rate =…
Q: Q: If data is to be sent from an input device to a memory buffer starting at address A000H and…
A: Intro DMA Channels The 8237 has four separate DMA channels each channel with two 16 bit registers…
Q: No forwarding is assumed - and assume no hazards are present We will run the following code on the…
A: Since , no hazards are present , Therefore no stalls are present RISC-V pipeline have five stage…
Q: 33. Suppose that a bus has 16 data lines and requires 4 cycles of 250 nsecs each to transfer data.…
A: Question: Suppose that a bus has 16 data lines and requires 4 cycles of 250 nsecs each to transfer…
Q: Draw a timing diagram showing the signals required for the master to send the byte 0x2B and the…
A: Timing diagram is given below We have to send 0x2B for master We have to send 0x47 for slave…
Q: Q1. Consider that the up system consists of two memory sections, the SRAM and the EPROM. The up…
A: Wait state is a delay encountered by a computer processor when accessing external memory or a…
Q: (b) Consider a paging system with the page table stored in memory. If a memory reference takes 200…
A: Ans:- a) If memory access takes 200 nanoseconds, how long does a paged memory reference take?200…
Q: 4. Assume that it takes 100 ns to access memory and when a page number is in TLB, to access a…
A: Answer : Effective memory access time = h (t + m) + (1-h) (t+m+m) h = hit ratio = 95 / 100 t =…
Q: which address lines are generating the selection line A1 A0? A. None B. Selection lines A1 A0…
A: Assembly level language is a low-level programming language, that's used to communicate directly…
Q: Consider a cache memory with blocks of 23 words (1 word = 4 bytes) , with a bus Main Memory - Cache…
A: SUMMARY: -Hence, we discussed all the points
Q: Consider a paging system with the page table stored in memory. 80 percent of all page-table…
A: Here in this question we have given a paging system in which 80 % of all page table reference found…
Q: A virtual address of 32 bits is passed on to the TLB. If the number of entries (number of cache…
A: Please upvote. I am providing you the correct answer below. please. For solving this question we…
Q: 3. Tristate buffers can also be used for bi-directional bus operation. This is the ability to…
A: The answer as given below:
Q: The FSM of the arbiter defined in section 8.8, and reproduced in Figure 2, can cause the third…
A: Answer:
Q: Consider a system whose RTL code is given as follows: assume that j,o,h,n are mutually exclusive…
A: Here I have about a and c answer which i have gave in step 2 and step 3 below, as we assumed that…
Q: QUESTION 3 The effective access time for a machine with a page fault probability of 3%, memory…
A: Given: page fault probability = 3% Memory access time(ta) = 200 ns Page fault time (tf) = 50…
Q: 1. In a non-paged address translation, if the base register contains 0x52000000 and the limit…
A: For non-paged memory, all the framework needs to do is guarantee that an actual page outline is…
Q: Consider a cache memory with blocks of 23 words (1 word = 4 bytes), with a bus Main Memory - Cache…
A: Cache memory is divided into sets of k blocks in a k-way set associate mapping. Size of Cache memory…
Q: Assume a bus is 16 bits wide. The data and address lines are multiplexed, meaning that the bus must…
A: Solution:-
Q: SONET STS-1 SPE is mapped into an STS-1 line. An STS-1 SPE frame consists of 87 columns of 9 bytes,…
A:
Q: Our system is using virtual memory and has 48-bit virtual address space and 32-bit physical address…
A: A. Page size = 8KiB So page offset bits = 13 bits Total # of page table entries required = total…
Q: Consider a bus-based shared memory with two processors P and Q. Assume that X in memory was…
A: Below find the solutionIn this Write-Invalidate Write-Through protocol the memory is always…
Q: What is the biggest drawback of a single data route architecture? Multiplexors are required because…
A: Introduction: In a network or across or across several networks, routing is the process of…
Q: The following paging system has 64KB main memory, which is divided into 16 frames (frame numbers are…
A:
Q: Consider a system with 2-level cache, at 0.6 hit ratio in level 1 memory. The L1 memory is 4 times…
A: There is a decrease of ≈ 44%.
Q: Suppose that a computer has a processor with two L1 caches, one for instructions and one for data,…
A: Basics:- Consider a system with only one level of cache. In this case, the miss penalty consists…
Q: If a memory reference takes 200 ns, how long does a paged memory reference take? Now we add an MMU…
A: a. A paged memory reference requires two memory accesses in memory referencing: one to obtain the…
Q: distributed, synchronous arbitration scheme.
A: In distributed synchronous arbitration scheme, all devices got access the TR(transfer request) line…
Q: s(1 Consider a serial bus (1 bit wide) that runs at 2GHZ, using alternate cycles for control signals…
A: The Answer is in step-2.
Q: Given the following code: add St3, St2. St1 Iw St4, 12(St3) sub $t5, St4, Sto How many clock cycles…
A: Among instruction 1 and instruction 2. $3 is written from instruction 1. This instruction two wants…
Q: Draw a complete datapath for 5 staged (IF, ID, EX, MEM, WB)
A: Step 1: The number of instruction in this case, nine. In the first eight cycles here, the pipeline…
Q: Consider a paging system with the page table stored in memory. Memory access takes 200 nanoseconds.…
A: Introduction :Given , Paging system.Memory access time is = 200 ns page hit rate = 75 %TLB time = 0…
Q: Assume that the base address of 8255-PPI chip is OC00H and the address of port C of the chip is…
A: Assembly level language is a low-level programming language, that's used to communicate directly…
Q: You are given the following data about a virtual memory system: (a) The TLB can hold 512 entries and…
A: The chance of a hit is 0.99 for the TLB and the access time for TLB is 1 nsec. So, the term will be…
Q: Consider a demand-paging system with a paging disk that has an average access/transfer time of 50…
A: In any system that uses demand paging, the operating system copies a disk page into physical memory…
Step by step
Solved in 3 steps with 2 images
- Consider a cache memory with blocks of 23 = words (1 word = 4 bytes) , with a bus Main Memory - Cache of 32 bits, and with 1 clock cycle to send the address, a row cycle time (DRAM) of 17 cycles (5 less clock cycles for the column access time) and 1 clock cycle to return a word. Assuming that each word is in a different DRAM row, calculate the bandwidth of the system in byte per clock cycles (bandwidth = number of bytes per clock cycles) for the transfer of one block from Main Memory to Cache Memory (not interleaved memory system). Provide the solution with at least 2 decimalsQ: If data is to be sent from an input device to a memory buffer starting at address A000H and ending at AFFFH, provide the mode byte for DMA channel 2. Check that p is not totally disconnected from the bus throughout the DMA cycle. Furthermore, the channel is to be reinitialized at the conclusion of each DMA cycle such that the same buffer is filled when the next DMA operation is initiated?Consider a paging system with the page table stored in memory. Memory access takes 200 nanoseconds. If we add associative registers (a TLB), and 75 percent of all page table references are found in associative registers, then the effective memory reference time is__ns Assume that finding a page-table entry in the TLB takes zero time.
- You are given the following data about a virtual memory system:(a)The TLB can hold 1024 entries and can be accessed in 1 clock cycle (1 nsec).(b) A page table entry can be found in 100 clock cycles or 100 nsec.(c) The average page replacement time is 6 msec.If page references are handled by the TLB 99% of the time, and only 0.01% lead to a page fault, what is the effective address-translation time?Analyze the three bus arbitration techniques- daisy chaining, polling and independent request to communication reliability in the event of hardware failure(b) Consider a paging system with the page table stored in memory. If a memory referencetakes 200 nano seconds, how long does a paged memory reference take? If we add a TLB,and 75% of all page references are found in the TLB, what is the effective memory referencetime? (Assume that it takes zero time to find an entry in the TLB if it is already present).
- When it comes to a single data route architecture, what is the most important disadvantage?It is necessary to use several Multiplexors.The clock period is defined by the delay that is the longest.The JUMP instruction is not supported on this platform.Each datapath element can only execute one function at a time, and this is true at all times.A gaming device has to transfer a high definition 1280 x 720 x 3 video frame @ 30 frames/sec. The 32-bit system bus operates at 100MHz clock. It takes one clock cycle to make one transfer through the bus (i.e. D=1) and there is an overhead of ten clock cycles per transfer (i.e. O=10) Is this bus suitable for this system? If not, then what can be done to make it suitable? Explain. What if the bus operates in burst mode (burst size of 4)? Would it be suitable to use? Explain.Suppose a two layer memory hierarchy has a 4 clock pulse hit time, a 35 clock pulse miss penalty, and the miss ratio is 20%. What is the AMAT (in number of clock pulses)?
- Given that many systems have a single bus that can be controlled by only one bus master at a time( and thus the CPU cannot use the bus for other activities during I/O transfers) explain with a diagram how a system that uses DMA for I/O can out perform one in which all I/O done by the CPUGiven a system with separate instruction and data caches, suppose the frequency of data operations is 0.31. Given a HitTime of 1ns for each cache and a miss penalty of 50ns for each cache, calculate the average memory access time (in nsec). Assume that the miss rate for the data cache is 0.08 and the miss rate for the instruction cache is 0.04.Round your answer to two decimal placesThe VAX SBI bus uses a distributed, synchronous arbitration scheme. Each SBIN device (i.e., processor, memory, I/O module) has a unique priority and is assigned a unique transfer request (TR) line. The SBI has 16 such lines (TR0, TR1, . . ., TR15), with TR0 having the highest priority. When a device wants to use the bus, it places a reservation for a future time slot by asserting its TR line during the current time slot. At the end of the current time slot, each device with a pending reservation examines the TR lines; the highest-priority device with a reservation uses the next time slot. A maximum of 17 devices can be attached to the bus. The device with priority 16 has no TR line. Why not?