Question

QUESTION 1

1. 1. Determine the output X, 2-bit register Creg and State at the dotted lines of the following HLSM (High Level State Machine). The initial state is Off (When you write the state for answers, write “on” and “off”). (Hint: Be careful as to the value of Creg; see Lecture 26 slide #9 or p. 254 in the textbook)

   At line 1: Output X = , Creg = (decimal), State =

   At line 2: Output X = , Creg = (decimal), State =

   QUESTION 1 1. Determine the output X, 2-bit register Creg and State at the dotted lines of the following HLSM (High Level State Machine). The initial state is Off (When you write the state for answers, write "on" and "off"). (Hint: Be careful as to the value of Creg; see Lecture 26 slide #9 or p. 254 in the textbook) Inputs: B (bit) Outputs: X (bit) Local storage: Creg (8 bits) - O !(Creg>1) Creg >1 Off on x := '0' x := '1' Creg := 3 Creg := Creg - 1 cikuu At line 1: Output X = At line 2: Output X = Creg = Creg = (decimal), State = (decimal), State =

Answer 1

·Del Cerea>') \req>) (OFFK ON ) B to XO Greg- - Creq=3 state diagramme Greq-1 From the behavior state m, the behaviour of state machine is known as In off state If input = 1 ) Goes to on state In OFF state creg is loaded with 3 If input zo =) remains in off state Output in OFF state = 0

In, ON State: Those It is indepedent of input but depends on value in Creg. for each cycle Creg decreases by it Creg Sl and if Cree is less than moves to Off state and Greg is loaded with 3 Output is ON state is conuerst

ck Next present state I state creg present) Next output (X) 2 درا 3 1 2 I linei a - 3 I o o دم I ON د OFF ON ON Opf OFF a m Oo oo دی www- 4 d linez 5 o OFF 313

State = ON So ato line i Output x =1. (reg=p so at line 2 1. Oulput xoo Crega3 state= OFF