LS374 DATASHEET PDF

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Create a similar example using different, non-trivial e. Look carefully at the data sheet!

Also, see the course materials repository page. BUT, we expect both of you to understand and participate in the execution of both labs. Pin 2 provides D0 to bus, Pin 5 provides D1, etc. Refer above for details on wiring the circuit. Limit your answer to 40 words. You will be expected to assemble, disassemble, and time code by hand on tests and quizzes.

The term counter limit refers to the maximum value the counter runs datashewt e. For each question below, we suggest that you do the work by hand and check it with an assembler. Machine code is fetched from memory and the instructions described are executed by the processor.

It is OK to use CodeWarrior to check your work and make corrections after you have done datashete by hand. You do not have to use the assembly program or the simulator. This lab uses a flip-flop to hold a datashert value on a bar graph LED.

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Assume the voltage drop across the LED is 1. Paste a copy of the lab portion of the Lab Writeup Checklist into your hand-in materials. Assume that all setup, hold, pulse duration, and propagation times are valid and the outputs have settled for these sample points. The first instruction is done as an example. This lab uses the same circuit as Lab 2 part A. For the questions in part B. You MUST follow these procedures or we will not accept your submissions.

Using a checklist is your best defense against this in general, and in particular is extremely helpful for avoiding unnecessary point losses when handing in assignments for this course. Do this by hand using the reference materials.

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Your program shall meet the following requirements: Circuit Output Connections In the resistor network, each resistor is Ohms.

Do this by hand — do NOT use the simulator since it will give exact execution time and not best case execution time. Embedded Hardware – Part B: For the questions involving the l374 sum, you may find it faster to compute the sum using a formula for an arithmetic sequence, rather than doing the sum iteratively. Confirm the operation using the simulator to make sure you got it right, which datawheet need document only by saying “checked with simulator” in your hand-in.

It is easy to make small mistakes when you are in a hurry. Assume that the output voltage is quiescent i. Think of how embarrassed you will be if you get something wrong after saying you followed the checklist. Put a brief comment at the beginning which describes the overall function of the code.

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For this lab, you will adapt the string hash program from satasheet 1. You will connect the circuit and write a simple program to verify its operation. When you record your answers, use the conventions described in the discussion section. For example, if Q7 is high, and Q6: Scan the printed-out document after you add the dtasheet and upload to the hand-in folder. Be sure to consult the Lab Writeup Checklist for both datashdet prelab and lab writeup!

Briefly comment each line to describe what it does 10 words or fewer per line.

LS Datasheet(PDF) – TI store

Pick an instruction where the exact execution time differs from the best case execution time and explain why in one sentence. The point of this exercise is to actually follow all the steps on the checklist, not just say you followed them.

Why is it valid or invalid? Code files should be submitted separately, per the lab FAQ. Paste a copy of the pre-lab portion of the Lab Writeup Checklist into your hand-in materials.

Please see the course web page for due dates. Note that 74LS labeling of “Q” outputs is in terms of bus bits and not per data sheet for this diagram. To familiarize yourself with the microcontroller assembly instructions and the process of assembly.