mp-A2, December 2018 6. 15 pts] A) Why internipts is useful? hy interrupts should be prioritized? 5 pts B) W Q How to handle the interrupts 5 pts D) What is the difference between maskable interrupts and nonmaskable interrupts? 5 pts A) What is the name given to a routise that is executed in response to an interrupt? 4pts) pts) B) What are the ndvantages of using interapts to handle data inpats and output? 04 pes Q) What are the requirements of interrupt processing? D) How do you enable other interrupts when the controller is executing an interrupt service toutine? 4 pes E) Why would there be a need to promote one of the maskable interrupts to highest priority among all maskable interrupts? 4 pts 17-Comp-A2/May 2018 Page 8 of 8 1) Circle the letter of the best answer (20 points) 12 pta) 1.1 The abbreviation RTL means A. Relational Timing Logic B. Relative Transfer Latches C.Register Transfer Level when : [2 1.2 Using true/false values, the two-input xor operator gives true A. both inputs are the same B. both inputs are different C. either input is true 1.3 The process statement is one of the: A. Sequential statements B. Design units C. Concurrent statements 2 pes 1.4 The term sequential means A. happening quickly B. happening over and over C. happening in steps, one after the other 1.5 Syntax and semantics refer to what two concepts? 12 pes A. format and structure B. grammar and meaning C. behavior and timing 1.6 Propagation deay is what? 2 pts A. The time to flip-flops initialized B. The time to get input changes to affect outputs C. The time from one clock edge to the next. 1.7 The process sensitivity list normally contains: 2 pts A. Process outputs B. Process inputs C. Both process inputs and outputs 17-Comp-A2/May 2018 Page 2 of 8 May 2018 1.8 Concurrent execution is done by 12 pts A. Executing when triggered B. Executing in the order written C. Executing after a delay 1.9 The following are three sequential statements 2 pts A. Variable assignment; if/then/else; selected concurrent signal assignment B. Case; loop; conditional concurrent signal assignment C. Signal assignment; loop; variable assignment 1.10 Variables are assigned the new value 12 pts] A. Immediately B. After a delay C. When the simulator completes the next cycle P-A2, December 2018 Page 3 of 9 Circle the letter of the best answer (20 points) 1.1 Synchronous digital logie means: 12 pts) A. All gates are triggered at the same time B. All flip-flops are triggered at the same time All events occur at the same time 1.2 Tristate signals can be described as 2 pts) A. having three strong levels of voltage B. having three kinds of circuits C. having two voltages and one high impedance 1.3 A binary counter of four flip-lops has how many states? (2 pts) A. 8 B. 15 C. 16 1.4 A tead-only memory can be used for [2 pts A. implementing a logic function B. implementing a register C implementing a read-write memory 1.5 In synchronous design rules, asynchronous flip-dip inputs are: 2 pts A. never used B. used to help optimize logic C. only used for initialization 1.6 Simulation is primarily used to: 2pts A. Create the circuitry fot the ASICs or FPGAs B. Infer gates and flip-flops from the HDL C. Verify the functionality of the design versus the requirements comp-A2, December 2018 Page 4 of 9 1.7 The term concurrent means 2 pts) A. occurring at different times or places B. occurring at the same time C. occurring at the same place 1.8 What is the primary concurrent statement used in structural architectures? Rp] A. component configuration C. component specification 1.9 The reserved word others does NOT mean: 2 pts) A. All elements of an array B. All remaining values of an object C. All statements in a model 1.10 A sensitivity list fot a process infetring lip-lops contains A. The clock or clock and reset B. All inputs C. All outputs 2 pts)