Counters

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Application Notes

Title	Size
XAPP023: Accelerating Loadable Counters in XC4000	20 KB
XAPP210: Linear Feedback Shift Registers in Virtex Devices	50 KB
XAPP052: Efficient Shift Registers, LFSR Counters, and Long Pseudo-Random Sequence Generators	60 KB
XAPP018: Estimating the Performance of XC4000E Adders and Counters	30 KB
XAPP014: Ultra-Fast Synchronous Counters	30 KB
XAPP004: Loadable Binary Counters	40 KB
XAPP027: Implementing State Machines in FPGA Devices	30 KB
XAPP013: Using the Dedicated Carry Logic in XC4000E	100 KB
XAPP075: Using ABEL with Xilinx CPLDs	50 KB
XAPP008: Complex Digital Waveform Generator	10 KB
Pulse-Width Modulation in Xilinx	140 KB

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XCell Articles

Title	Issue
A 400-MHz Frequency Counter	Q2 '99
A 200-MHz Pulse Generator	Q1 '98
Ten-Digit Fully Synchronous BCD Counter Runs at 87 MHz	Q2 '96
Advanced Carry-Logic Techniques	Q2 '96
Designing with XC5200 Carry Logic	Q3 '96