Analyse the interfacing circuit shown in Figure 3 and answer the questions given below when the...
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Analyse the interfacing circuit shown in Figure 3 and answer the questions given below when the 8253/54 timer is interfaced using 8085: i) Identify the interfacing technique used. [2 marks] ii) Identify the various counter and control register addresses. [8 marks] ii) Develop an assembly language program to initialize the counter 2 for binary count of mode 3 to divide CLK2 by the number FFEEH. [8 marks] iv) Calculate the frequency of OUT2, if CLK2 is divided by FFEEH when CLK2 is 2 MHz and if CLK2 is 3 MHz [4 marks] v) Outline the output waveform for OUT1, if the COUNTER1 is programmed for MODE 3 operation such that CLK1 is 3 MHz, GATE1 is 1 and the count value N is 2000. [3 marks] Analyse the interfacing circuit shown in Figure 3 and answer the questions given below when the 8253/54 timer is interfaced using 8085: i) Identify the interfacing technique used. [2 marks] ii) Identify the various counter and control register addresses. [8 marks] ii) Develop an assembly language program to initialize the counter 2 for binary count of mode 3 to divide CLK2 by the number FFEEH. [8 marks] iv) Calculate the frequency of OUT2, if CLK2 is divided by FFEEH when CLK2 is 2 MHz and if CLK2 is 3 MHz [4 marks] v) Outline the output waveform for OUT1, if the COUNTER1 is programmed for MODE 3 operation such that CLK1 is 3 MHz, GATE1 is 1 and the count value N is 2000. [3 marks]
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