How many bytes does a 64 KB microprocessor memory contain? Note: 1 KB = 2^10 bytes 1 MB = 2^20 bytes 1 GB = 2^30 bytes
How many bytes does a 64 KB microprocessor memory contain? Note: 1 KB = 2^10 bytes...
a) A memory unit has 28-bit address lines and 64-bit input/output data lines. How many bytes of data can this memory hold? How many words does it contain, and how large is each word? b) A memory unit consists of 32M words of 16-bit each. How many bits wide address lines and input-output data lines are needed to access this memory? c) A memory unit consists of 512K bytes of data. How many bits wide address lines are needed to...
A computer system has a 64 KB main memory and a 4 KB (data area only) cache. There are 8 bytes/cache line. Determine (1) the number of comparators needed and (2) the size of the tag field, for each of the following mapping schemes: a. Fully associative A computer system has a 64 KB main memory and a 4 KB (data area only) cache. There are 8 bytes/cache line. Determine (1) the number of comparators needed and (2) the size...
A computer system has a 64 KB main memory and a 4 KB (data area only) cache. There are 8 bytes=cache line. Determine (1) the number of comparators needed and (2) the size of the tag field, for the following mapping scheme: Direct.
How many address lines are required for a memory containing a total at (a) 256 kB (b) 2 MB (c) 4 GB Fill in the blanks with one of IR, ALU, PC, ACC, MEMORY, FETCH PHASE or EXECUTE PHASE: (a) Data is stored in the __________ (b) Programs are stored in the ___________ (c) To be executed, an instruction is loaded into the ____________ (d) The address of an instruction to be executed is held in ______________ (e) Instructions are...
Please refer the following memory system : Main memory : 64 MB Cache memory: 64 KB Block size of 1 KB 1. Direct Mapping Offset bits? Number of lines in cache? Line number bits? Tag size? 2. Fully Associative Mapping Offset bits? Tag size? 3. 2-way set-associative mapping Offset bits? Number of lines in cache? Set number bits? Tag size? 4. 4-way set-associative mapping Offset bits? Number of lines in cache? Set number bits? Tag size?
Assume the cache can hold 64 kB. Data are transferred between main memory and the cache in blocks of 4 bytes each. This means that the cache is organized as 16K=2^14 lines of 4 bytes each. The main memory consists of 16 MB, with each byte directly addressable by a 24-bit address (2^24 =16M). Thus, for mapping purposes, we can consider main memory to consist of 4M blocks of 4 bytes each. Please show illustrations too for all work. Part...
Suppose we have 2^20 bytes of virtual memory and 216 bytes of physical main memory. Suppose the page size is 2^8 bytes. a) How many pages are there in virtual memory? b) How many page frames are there in main memory? c) How many entries are in the page table for a process that uses all of virtual memory?
Exercise 1. What is the size of the memory for the microprocessor if it has 24-bit address lines (bus)? Furthermore, give the starting address and the last address of the memory. 2. List the operation modes of the ARM Cortex-M3. 3. What is the function of register R13? Register R14? Register R15? 4. On an ARM Cortex-M3, in any given mode, how many registers does a programmer see at one time? 5. Which bits of the ARM Cortex-M3 status registers...
Exercise l: Suppose that we have a virtual memory space of 28 bytes for a given process and physical memory of 4 page frames. There is no cache. Suppose that pages are 32 bytes in length. 1) How many bits the virtual address contain? How many bits the physical address contain? bs Suppose now that some pages from the process have been brought into main memory as shown in the following figure: Virtual memory Physical memory Page table Frame #...
3. (15 Pts.) In this problem you are given a microprocessor with 24-bit address bus and 8-bit data bus. a. What is the addressing space of this microprocessor? 113 16 MB b. how many bytes are contained in the sub-space starting at address C00 000h and ending at address DFF FFFH? Express your answer in KB and MB. DFFFEE CoO DOU - TFFFFF in ke 20 4SKe c. You would like to interface a single 4 MB memory IC to...