a. Write sequence of instructions that will input the contents of input port at I/O addresses B016 and jump to the beginning of a service routine identified by the label ACTIVE_INPUT if the least significant bit of the data is 1. b. An 82C54 receives the control word 90h. Explain the configuration set up for the timer. c. Referring to 2164 DRAM structure given , what maximum number of address bits can be applied to this IC and how? d. Design a memory system for 8088 microprocessor consisting of 32KB of R/W memory and 32KB of ROM memory. The following devices are available: 27128 EPROMs 4363 SRAMs Two 74138 decoders R/W memory is to reside in the lowest address space, whereas ROM memory is to reside in the highest address range. 8088 microprocessors bus signals available for use are A0 throughA19, D0 throughD7, RD andWR . You can refer to the IC block diagrams. Answer the following: i. What is the organization of 27128 EPROM? ii. How many 27128 and 4363 devices are required to design this system? [1] iii. Give block diagram for the system showing all relevant connections. Also find address range of the devices connected. [3]

Winte sequence of these will put the comments al patto desde pels confly the ACTIVE_ISET ficat The data 1 131 Referring to 2164 DRAM cene, bet af de besc belied this d. Tegem for coming of 2R Remary ROM memory The Long disant 27129 EPROM 4567 SRAME T74138 doeders RW syistered in the lowes ROMsikin the lighed range 305 croprocessals were AD, DRDRY er the lack diam Are the following What is the ori27125 LPROMETU How 27128 und diese to design this! Geve block diagram the system showing all come to Abe find mange af de conected 131 IC Block Diagrams (supply connections are not shown) 2164 DILAN 27 EPROM 4363 SRAM 0 the 0. A. EN PPO w RAS CAS A OE CE 14138 Joline de Y. Y: OE CE GI GA Y. Va Y. V. Winte sequence of these will put the comments al patto desde pels confly the ACTIVE_ISET ficat The data 1 131 Referring to 2164 DRAM cene, bet af de besc belied this d. Tegem for coming of 2R Remary ROM memory The Long disant 27129 EPROM 4567 SRAME T74138 doeders RW syistered in the lowes ROMsikin the lighed range 305 croprocessals were AD, DRDRY er the lack diam Are the following What is the ori27125 LPROMETU How 27128 und diese to design this! Geve block diagram the system showing all come to Abe find mange af de conected 131 IC Block Diagrams (supply connections are not shown) 2164 DILAN 27 EPROM 4363 SRAM 0 the 0. A. EN PPO w RAS CAS A OE CE 14138 Joline de Y. Y: OE CE GI GA Y. Va Y. V