October 2006
Intermediate to advanced
544 pages
20h 23m
English
Content preview from Digital Systems: Principles and Design
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518
Digital Systems
A Xilinx XC 4000 CLB has 2 D-FFs each with the R and S inputs (preset and set) and an
enable input. How many CLBs shall be needed to design a (i) 32-bit PIPO and (ii) 32-bit
ripple counter.
Solution
Sixteen CLBs the 32-bit-PIPO and counter will be needed.
EXCERCISES
1. Draw Xilinx XC 4000 logic block (CLB design).
2. Draw flash logic device from Altera which uses a 24 V 10 PAL.
3. Describe Xlinix XC 7000 and XC 9500 CPLDs.
4. Describe XC 4000 FPGA. CLB. Compare the XC 4000 and XC 801.00 features.
5. List the links to be programmed for a ripple counter of 4-bit using CLBs of XC 4000.
6. Show a design each of 32-bit ripple counter, 32-bit ...
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