Draw pinouts of 8088 or 8086 microprocessor (μp). Also draw schematics of 8088/8086 μp buses with Latch(s) [IC: 74LS373] and Buffer(s) [IC: 74LS245]. Write purpose of using latch and buffer ICs with μp buses.
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Draw pinouts of 8088 or 8086 microprocessor (μp). Also draw schematics of 8088/8086 μp buses with Latch(s) [IC: 74LS373] and Buffer(s) [IC: 74LS245]. Write purpose of using latch and buffer ICs with μp buses.
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- For a microprocessor similar to ATmega328p an 8 bit ADC uses a VREF = 3.3 V. When an analog read is executed the return value is 112. What Voltage is present on the input? Enter the value in the box provided in mV. Round to the nearest mV.4) Design and draw these memory units with their control circuits. Explain operations. a) A single EPROM 2716 is used with an 8088 microprocessor so that this microprocessor will see only X bytes of memory between the address range of DF800 –DFFFF or DD800 - DDFFF instead of 1M byte that it expects. Draw this circuit. What are X bytes? Do not use 74138 decoders. b) Design and show a 16K x 16-bit memory circuit by using 8K x 8-bit RAMS. Explain its operation. Do not use decoder 74138 chip.1. For the Intel 8086 microprocessor interface diagram below chose the suitable ICs to be connected in the three blocks, write the selected IC Name in each block. Draw the generated read and write control signals +Vcc 8282 8-bit latch Dig DI₁2 0₂¹ Di DIA Dis D7 20 VCC 15 000 18001 1700₂ 1600₂ 15 DO 14 005 1300 Oly JE 12 007 GND 10 11 STB с 0 8282 YO Y1 A Y2 B 74LS138 Y3 JaGIWNI8 3-8 Decoder Y4 Y5 Y6 7 Y7 G2A G2B G1 99 CLK READY RESET 2222222 20 A2 A1 An 11 MN/MX 8086 CPU 10 GND 8286 8-bit transceiver A1g-A16 AD15-ADO & & E 19 11,1 H-17 8. 16 B, 15 ALE BHE 070- 00 8205 00- 3-8 DEC 040- DEN DT/R HOLD HLDA INTR INTA 00- 020- 010- O 0 MIO WR RD DIR STB 74LS245 8bit Bidirectional buffer X1 10 X2 DE 8284A Clock Generator GND ₁18 B₂ 17 B 16 15 14 By 12 11 IDD 2D 3D 4D SD 6D 7D 8D 74LS373 8bit latch CLK BHE Address Bus G OC Enable output control 10 20 30 40 50 Data Bus 60 70 30
- The required 7-segmrnt decoder should have 3-inputs (which are the bits of the binary number desired to be designed, call them A,B,C), and 7 outputs (the 7 segments of the display unit which are a, b, c, d, e, f & g). 8. gf a b t la Ob d Dp e d8c Dp The 7-segment to be used is of common anode type. Consequently, any segment will be ON if its input is Low, meaning that for displaying 0 the segments inputs (a,b,c,d,e,f.g) should be (0000001), or g will be OFF while all the others are ON. 1- Make a table explaining the inputs and the corresponding outputs for the 6 combinations input (000.101), assuming the other two combinations as don't care. 2- Find the output as a function of the inputs (A,B,C) using K-map to minimize the expressions 3- Show your design using 2-input, and 3-input NAND gates, and inverter.(a) Consider the flipflop circuits below: (i) Name the 2 circuits given in the figure. Explain how they are different from each other. a. b. (ii) Choose from the list the input that triggers data to travel to the next flipflop in a counter. A: Input at top NAND gate B: Input at bottom NAND gate C: Clock input clk Q(a). If I want to store 4-bit data 0110 and at 4th clock I want to extract all the stored bits, which shift register I should explain it with the help of circuit diagram and table. (b). Write comparison between Diode transistor logic and Transistor Transistor logic
- An Intel 8085 processor is executing the program given below. MVI A, 10H MVI B, 10H BACK NOP : ADD B RLC JNC BACK HLT The number of times that the operation NOP will be executed is equal toI found the answer to this question "10" , if we want to make the design for this circuit by using ROM , how many inputs will the ROM have ?d) Draw the schematics of 4-bit synchronous and asynchronous MOD-8 counters and comment on their pros and cons. e) Calculate the noise margin for a logic gate with the following logic levels: VIL = 1.1 V, VIH = 3.2 V, VOL = 0.6 V, VOH = 4.0 V.
- 8085 microprocessor went through its manipulation operation in the ALU, the results was transferred on the data bus and status of the results was stored in the flag register for indications . With your knowledge and understanding illustrate a complete bit configuration of 8085 flag register and show the functions of the represented bits in the register.The upper 16 -bit binary count value are displayed on the four seven -segemnt displays as four hexadecimal digits. Hexadecimal values aren't good for human perception. How would you suggest the counter design be modified so that only decimal count values are displayed.Draw a block diagram of 8088 along with all the labelling. Secondly write down about the Stack pointer registers and bese pointer registers, also give the examples of LIFO and FIFO which we discussed in the class.