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A fully 16-bit external data bus 68000-microprocessor is used in the following motor control and instrumentation system. It operates as follows:1. An operator prepares an 8-bit binary value with a dip switch.2. A momentary contact switch (single-pole-single throw) connected to only one end of a cross-coupled NAND latch is activated. This sets the output of the latch to a logic one.3. All this time, the 68000 has been polling the output of the latch.4. When microprocessor detects a logic one at the output of the latch, it resets the latch to a logic zero by sending a low going pulse to the other input leg of the latch.5. The microprocessor then reads the 8-bit data from the dip switch and puts the value in memory starting at location called ‘BUFFER' . This same data is sent to a digital-to-analog converter ( D/A) whose output drives a dc motor.6. The output of the dc motor is connected to a tachometer , whose output is, in turn, connected to an 8-bit microprocessor compatible analog-to-digital converter (A/D). The A/D is connected in a free running configuration.7. The 68000 reads the A/D output, compares it with the original data from the dip switch, sends the hexadecimal number ‘$42' to an 8-bit LED pack if the compared values are different, and sends the hex. value ‘$99' to the same 8-bit LED pack if the compared values are equal.8. Finally, a centronics parallel printer port is polled for a low-true printer ready logic signal, and the A/D data is sent to the printer.A. Provide a hardware design for the system. Partial and simplified decoding is acceptable. Use only the following four addresses for your ports design: $3001 ; $30F1; $30E1; $31F1. Do NOT include interface to memory modules and reset circuits. Design the address decoders, I/O ports (where needed), DTACK circuitry, complete circuit details of dip switch and other switch interconnections, complete circuit details of LED interconnections, input/output ports with appropriate handshaking signals. Clearly label A/D, Printer, D/A signals showing how they connect to other circuits.B. Provide a well-commented 68000 assembly language program to accomplish the tasks indicated in items 1 thru. 8. Clearly identify the specific polling routines and input/output control software for each input/output device.
In a right triangle, the square of the length of one side is equal to the sum of the squares of the lengths of the other two sides. Stephanie has the integer lengths of three sides of a triangle and needs to know if it is a right triangle.
Draw the ROM truth table for the seven segment
The following represent soulution of the transmission line disserential equations for some arbitrary function f(u): V(z, t) =60 cos(1000t -5z) -120 pi f (2t +z/100 +12) V i(z, t) = 2 pi f (2t +(z/100) +12) - cos(1000 t -5z) A a) what is the forward p..
A double-convex lens is to be made of a transparent material with an index of refraction of 1.3. One surface is to have twice the radius of curvature of the other and the focal length is to be 72 mm.
The current entering the positive terminal of a device is i(t)= 6e^-2t mA and the voltage across the device is v(t)= 10di/dtV. ( a) Find the charge delivered to the device between t=0 and t=2 s.
The two blocks in the figureoscillate on a frictionless surface with a period of 1.7 s. The upper block just begins to slip when the amplitude is increased to 32cm. What is the coefficient of static friction between the two blocks
What is the phase relationship between IC and IL at IS minimum. What is the phase relationship between VC and VL at IS maximum.
In an electricity experiment, it was observed that as the potential difference in volts across a thin platinum wire increases the current in amperes changes as follows: (V,I)=(0,0), (1.0,0.112), (3.0,0.337), and (6.1,0.675).
You have a laundry room where the following loads are connected to a 208V circuit: 2500W electric base board heater, 600W wash machine, 3600W dryer, and a 1000W iron. All loads are connected in parallel.
A HCS12 embedded timer is in PWM mode. If the E-clock is 24 MHz, the output period is 35.33 microsec, and a scale factor of 4 is used, what is the value loaded into PWPER
Two men are sliding a 100-kg crate up an incline. If the lower man pushes horizontally with a force of 500 N, and if the coefficient of static friction is 0.30, determine the tension T which the upper man must exert on the rope to get the crate to..
A volume is divided into two equal parts by a partition. The left volume has N atoms. The atoms have a mass m. A hole of area A is made in the partition at time t=0 A)Develop an expression for the number of white atoms on each side of the partition..
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