Logical Devices, Inc. provides this manual “as is” without warranty of any kind, either should not be viewed as any sort of definitive reference on the CUPL. WinCUPL is a language designed to support the development of PLDs .. into a document such as a manual and file for input into the CUPL simulator. 2. See the Atmel – WinCUPL User’s Manual for more information. Logic: examples of simple gates expressed in CUPL. */ inva =!a;.

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A bit field declared as [A This will almost certainly result in erroneous generation of equations. Indeed, kanual languages like Racket has a rich notion of data wincypl More information. In this, they differ from combinational circuits, which have no memory. Review binary and hexadecimal number representations Convert directly from one base to another base Review addition and subtraction in binary representations.

Figure Missing Figure 1. For 3 or more inputs, the XOR gate. Use the underscore character wimcupl separate words. The architecture of memory chips is then constructed using arrays of bit implementations coupled More information.

They contain the present-state information. The list format is as follows: Review of Number Systems The study of number systems is important from the viewpoint of understanding how data are represented before they can be processed by any digital system including a computer. Examples of some valid dincupl names are: Synchronous Digital Systems Lecture 8: Safety is an important concept. CK extension is used to select a product term driven clock. State Bits – are storage register outputs that are fed back to drive the combinatorial logic.


Sequential Circuits – State 2 – 7. In one state machine a conditional statement can contain another state machine s name followed by a state number or manul of state numbers. Safety is an important concept More information. Using this extension can reduce the number of product needed to implement the design into the Atmel device, and can increase the AC timing performance of the design. Utilities Menu – Additional useful utilities. Also these devices are electrically erasable, which makes them very useful for design engineers.

The CUPL Environment

The pin declarations declare a translation that will handle the signal polarity. CKMUX extension is used to connect the pin clock to the register. IO extension is used to select pin feedback when the macrocell. The following topics will be on sequential.

They improve the readability of the code and document the intentions, but do not significantly affect the compile time, as they are removed by the preprocessor before any syntax checking is done.

Wassell Introduction Aims To familiarise students with Combinational logic circuits Sequential logic circuits How digital logic gates More information. TFB extension is used when the macrocell on an Atmel device is configured for a combinatorial output but the T register still remains connected to the output.

Programming Fundamental Instructor Name: The up, down, and clear statements control the direction and reset of the counter. In some cases better versions of the figures were found in the Atmel document DOC There are two methods of accomplishing state machine communication: State Reduction and Assignment!

As part of its feature set, this device supports. Start display at page:. This means that the circuits have a memory More information. Any combination of uppercase or lowercase letters may be used to type these commands. Active-HI Pin Declaration for Inverting Buffer This promotes the designer to separate the design into layers so as to minimize wincull related to polarity.



CK extension will select the product term. LE extension is used to specify the latch enable equation for a latch.

LE extension causes a d term to be connected to the latch enable. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means electronic, mechanical, photocopying, recording, or otherwise without the written permission of LDI. The levels 0 to 4 correspond to the minimization levels available: If an input signal is active-level LO that is, the asserted TTL signal voltage level is 0 voltsput an exclamation point before the variable name in the pin declaration.

The equation for the 3-input XOR gate is derived as follows The equation for the 3-input XOR gate is derived as follows The last four product terms manul the above derivation are the four 1-minterms in the 3-input XOR truth table. Once a base change has occurred, that new base is the default base. The levels 0 to 4 correspond to the option flags on the command line, -m0 through -m4. A device type specified on the command line overrides all device types set in the source file.

Take a second to look over the file. The stable output of a combinational circuit More information.

CUPL Programmer s Reference Guide – PDF

Print – Print the currently selected document. This keyword is supported in CUPL versions 4.

These keywords cannot be used as names in CUPL.