microprocessor HW-1 2.1 Determine the maximum memory space for 8-bit microprocessors that have the following address word sizes. Express your answers in K bytes: (a) 14 bits (b) 11 bits. (c) 8 bits. (d) 24 bits. (e) 19 bits. 2.2 Given the following memory requirements, determine the minimum number of address bits required. Show, in hexadecimal, the highest addressable location. (a) 27K bytes. (b) 48K bytes. (c) 1.5K bytes. (d) 9K bytes le) 14,800 decimal bytes. 2.3 A microprocessor system requires 4K bytes of ROM and 256 bytes of RAM. Determine the beginning and end addresses of each memory block if the two memories are to occupy contiguous blocks of memory starting at address 0000. Express your answer in hexadecimal notation. Draw a memory map. 2.4 If the microcomputer system in Exercise 2.3 requires four addi- tional to ports, define suitable addresses for the ports, assuming memory-mapped VO. 2.5 A microcomputer has the following memory map: 4000 to 400F VO 2000 to 21FF RAM 0000 to OFFF ROM Determine the amount of ROM and RAM memory and the number of VO ports in the system. 2.6 Determine which address lines are not used in the system shown in Figure 2.5 2.7 Determine the amount of ROM (program storage). RAM, and mem- ory-mapped VO available in the system shown in Figure 2.6. 8 bits Memory address (hex) FFFF Not used 1000 Not used 54.5K RAM 0800-OFFT 0800 2600 25FF RAM 1.5K Program ROM 0300-07FF 2000 1FFF 0800 07FF Not used 6K 0300 0200 0100 0000 VO page Stack Temporary data RAM ROM 2K 0000 Figure 2.5 A Typical Memory Map. , Figure 2.6 A Memory Map