Suppose the cache access time is 1 ns, main memory access time is 40 ns, and the cache hit rate is 97%. Assuming memory access is initiated with cache access, what is the effective memory access time? Note: The Lockdown browser is setup to give you access to a standard calculator.

Figure 1 shows a block diagram of the 8051 microcontroller. Briefly describe thefunction of each of the numbered elements in the diagram as well as the T0, EA,RST, ALE, PSEN, and INT0 input/output pins.

A ROM chip with a 8Kx8 organization has _______ address lines. A. 3 B. 8 C. 13 D. 8K

I need some help with the image provided. This is for microcontroller and embeded system. it seems is related to interrupts and it is providing some logical gates. Can someone explain wherever is happening in the image. I only need to grap the concepts nothing really technical

2. In the NUCLEO-F401RE board, user LED (green one) is connected to PA.5(GPIOA and pin 5), the Bule user button is connected to PC.13(GPIOC and pin 13). Using this information, write a sequence of C instructions that would do the following. a. Configure the GPIO pin connected to the Green LED as an output. b. Write a 1 to the pin to turn on the Green LED by writing to the output data register (ODR) of that GPIO port. c. Configure the GPIO pin connected to the push button as an input. d. Read the state of the button by reading the input data register (IDR) of that GPIO port. Notes: provide the segments of your codes. You do not need to provide an entire declaration of GPIOX address and related registers struct of the GPIO (we assume they are already declared). For example, if you want to read the input data for pin 15 of GPIOC, the following code is sufficient: int a GPIOC->IDR & (1 << 15);

Please answer number 1

you nees Cache(L3) RAM Cache(L2) Cache(L1) Access time 2ns Access time 5ns Hit ratio 75% Hit Ration 85% Access time 10ns Access time 30ns Hit Ration 95% Suppose a program, initially loaded into RAM, contains 1500 instructions. The Hit ratios of L1, L2 and L3 Caches are 75%, 85% and 95% respectively. Calculate average access time. Also calculate total access time. Solution: CPU

answer this question,please