(c)Draw the state transition diagram (3%)

[Problem 3] (20%) 8-4-2-1 is a useful 4-bit binary code to represent decimal digits, as listed in Table 1. Design a combinational circuit F that can check if the decimal input encoded by 8-4-2-1 is an odd or even number. The output F of the circuit equals 1 if and only if the decimal input is an even number. Otherwise, F equals 0. You need to show the truth table of this circuit and design the two-level NAND- NAND network using the minimum number of logic gates and literals. Please note that the input code words (w, x, y, 2) and their complements can be used directly as fan-in in the final logic diagram, and the unused input code words can be used as don't care conditions for logic simplification.

Problem 4](20%) What are two common storage elernents in a sequential circuit? (4%) What are the differences between the operation conditions of these two elements? (4%) Give some waveforms to explain the meaning of the setup time and the hold time constraints in a synchronous sequential circuit. (6%) Give a general structure of a synchronous sequential circuit and use this structure to explain how the maximum operating frequency of a synchronous sequential circuit is determined. (3%) How can the maximum operating frequency be increased? 3%

(a) Give Verilog/VHDL codes of an asynchronously resettable positive edge-triggered flip-flop. (3%)

(b)Derive the state table for this finite state machine and define each state clearly (6%)

(d)Write RTL Verilog/VHDL codes to implement the finite state machine you designed. (8%)

簡答題 一、經中央主管機關公告類別及規模之食品業者，應設置衛生管理人員，其應執行哪些工作？

二、我國對基因改造食品的管理方式為何？

三、健康食品管理法第二條所稱「保健功效」的意義為何？

四、請列舉 3 種在台灣常見食物中毒危害之病原菌名稱：

五、西式餐飲業在製做玉米濃湯時，在加熱後必需有冷卻的步驟，請列出二段式冷卻的條件。