Digital design width CPLD Application and VHDL - Chapter 9 docx

... (AND) of all previous Qs. Figure 9. 19 shows the circuit for the 4-bit counter, including an asynchronous reset. FIGURE 9. 18 Example 9. 5 K-Maps for a 4-bit Counter Based on D Flip-Flops 398 CHAPTER ... Flip-Flop) INPUT RESET INPUT VCC CLOCK Q 3 OUTPUT element Q COUNT CLOCK RESET Q 2 OUTPUT element Q COUNT CLOCK RESET Q 1 OUTPUT element Q COUNT CLOCK RESET Q 0 OUTPUT element Q COUNT C...

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... other similar CPLD. One such board is available from Intectra Inc. For further informa- tion, contact Intectra at: Intectra, Inc 26 29 Terminal Blvd Mountain View, CA 94 043 U.S.A. Ph 65 0 -9 6 7-8 818 Fx 65 0 -9 6 7-8 836 intectra@best.com www.intectra.com ... process used by CPLD design software to inter- pret design information (such as a drawing or text file) and cre- ate...

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... 10.8. 487 DFF CLRN PRN Q D in1 INPUT q 2 OUTPUT out1 d 0 q 0 OUTPUT out2 DFF CLRN PRN Q D DFF CLRN PRN Q D clk INPUT d 1 q 1 d 2 q 2 q 1 q 0 d 2 d 1 d 0 NOT NOT NOT NOT AND3 AND3 AND3 AND4 AND3 AND3 AND3 OR2 OR2 FIGURE 10.35 Example 10.5 Two-pulse Generator 472 CHAPTER 10 • State Machine Design The next-state and output equations are: D ... analog-to -digital converter, as show...

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... next hexadecimal number after 99 9? After 99 F? After 9FF? After FFF? SOLUTION The hexadecimal number after 99 9 is 99 A. The number after 99 F is 9A0. The number after 9FF is A00. The number after ... numbers in the sequence: 190 , 191 , 192 , . . . , 199 , 19A, 19B, 19C, 19D, 19E, 19F, 1A0, 1A1, 1A2, . . . , 1A9, 1AA, 1AB, 1AC, 1AD, 1AE, 1AF, 1B0, 1B1, 1B2, . . . , 1B9, 1BA, 1BB, 1BC,...

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... IEEE/ANSI Standard 9 1-1 98 4. This standard is most useful for specifying the symbols for more com- plex digital devices. We will show the basic gates in both distinctive-shape and rectangu- lar-outline ... Function 74HC00A High-speed CMOS Quad 2-input NAND 74HC02 High-speed CMOS Quad 2-input NOR 74ALS04 Advanced low-power Schottky TTL Hex inverter 74LS11 Low-power Schottky TTL Trip...

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... circled pair, and B is a coordinate of the other. (Dis- card B/B ෆ .) Y ϭ A ෆ Three- and Four-Variable Maps Refer to the forms of three- and four-variable Karnaugh maps shown in Figure 3. 39. Each cell ... QR ෆ S ෆ term is synthe- sized from a NAND, then an AND, as shown in Figure 3.9a. Also shown is the second AND term, S ෆ T. 98 CHAPTER 3 • Boolean Algebra and Combinational L...

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... operation of combina- tional circuits. • Design BCD-to-seven-segment and hexadecimal-to-seven-segment de- coders, including special features such as ripple blanking, using VHDL and Graphic Design Files ... Graphic Design Files and VHDL to generate the de- sign for a 3-bit binary and a BCD priority encoder. • Describe the circuit and operation of a simple multiplexer and...

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... an n-bit number. It is similar to the idea of an odometer rolling over from 99 999 9 .9 to 1 000000.0. There are not enough places to hold the new number, so it goes back to the beginning and starts ... by its 4-bit true binary value. 9 s complement A way of writing decimal numbers where a number is made negative by subtracting each of its digits from 9 (e.g., Ϫ726 ϭ 99 9 Ϫ 726 ϭ 273...

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... Write the VHDL code for a 16-bit latch with common active-HIGH enable, using MAXϩPLUS II latch primitives. 7.4 Edge-Triggered D Flip-Flops Edge The HIGH-to-LOW (negative edge) or LOW-to-HIGH (positive ... Prop- agation time is always indicated with respect to the change in output level: t pLH for a LOW-to-HIGH output transition and t pHL for a HIGH-to-LOW output change. 29. Minimum pulse...

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... 358 CHAPTER 8 • Introduction to Programmable Logic Architectures Carry-In and Cascade-In Carry-Out and Cascade-Out LE1 LE2 LE3 LE4 LE5 LE6 LE7 LE8 LE8 Dedicated Inputs and Global Signals 24 8 2 6 LAB ... How many shared logic expanders are available in an LAB? 8.7 FLEX10K CPLD 8.27 Briefly state the difference between CPLDs having sum- of-products architecture and look-up table...

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