| Contributed by: |
Module
Description |
#1:
Rune Baeverrud |
Divide By N Frequency Divider
This cascadeable function divides a frequency by any
integer number and is used for timing generation in other modules, e.g. the Compact UART
Reference Design or the I2C Controller Reference Design. |
#2:
Rune Baeverrud |
Compact UART, Transmitter Module
The Compact UART transmitter provides a fully functional asynchronous
serial transmitter. Interfacing to logic or a microprocessor is easily accomplished using
the control and status signals provided. |
#3:
Rune Baeverrud |
Compact UART, Receiver Module
The Compact UART receiver provides a fully functional asynchronous serial
receiver. Interfacing to logic or a microprocessor is easily accomplished using the
control and status signals provided. |
#4:
Rune Baeverrud |
Compact UART Reference Design
A complete UART with microprocessor interface. Just drop it in and off you
go. |
#5:
Rune Baeverrud |
I2C Controller
This is an I2C Controller which may be used as a controller in single
master systems. Interfacing to logic or a microprocessor is easily accomplished using the
control and status signals provided. |
#6:
Rune Baeverrud |
I2C Controller Reference Design
A complete I2C Controller with microprocessor interface. Just drop it in
and off you go. |
#7:
Woody Johnson |
Gray
Code Counter
The gray module implements a parameterized width gray code
sequence counter. Gray code count sequences are distinguished by the fact
that only one bit changes as the counter goes through it's sequence. |
#8:
Rune Baeverrud |
512-point Cosine
This is a 512 points (128 points / quadrant) cosine
function using a single 256 point lookup-table (one EAB). 7 bits + sign bipolar or 8 bit
unipolar output resolution, giving a Signal-to-Noise Ratio (SNR) of more than 50dB. |
#9:
Rune Baeverrud |
512-point Sine
This is a 512 points (128 points / quadrant) sine
function using a single 256 point lookup-table (one EAB). 7 bits + sign bipolar or 8 bit
unipolar output resolution, giving a Signal-to-Noise Ratio (SNR) of more than 50dB. |
#10:
Rune Baeverrud |
Numerically Controlled Oscillator/Modulator
This is a very high speed Numerically Controlled
Oscillator/Modulator achieving an operating speed of more than 80MHz input clock frequency
using an Altera FLEX 10K -3 device. |
#11:
Rune Baeverrud |
VGA Sync Generator
This module makes it very easy to generate the signals
required for output to an industry standard VGA computer screen. A number of status output
signals are provided for easy synchronizing to external pixel data. |
#12:
Woody Johnson |
MII
Management Interface Controller
This is a design that can be used to read or write a register value as
defined by the IEEE 802.3 MII Management Interface. |
#13:
Iain
Rankin |
Corner
Bender
This LPM function was developed to permit the most efficient separation of
the component bitplanes in an image for display on a fast binary array modulator, using
pulse width modulation |
#14:
Frank
Rodler |
Dynamic
RAM Controller
Dynamic RAMs are still the cheapest way to implement memory for
microprocessor systems. If there is a CPLD already planed in the new design, the DRAM
controller can be easily added to the device. |
#15:
Woody
Johnson |
Linear
Feedback Shift Register (LFSR)
This is a design that can be used to implement a linear feedback shift
register (LFSR) of various lengths. Such registers are useful for replacing counters
when the count sequence is unimportant (such as in implementing fifo head and tail
pointers) or were only the terminal count value is used. |
#16:
Rune Baeverrud |
Variable Frequency Divider
This function is similar to the div_by_n function also found in the
FreeCore Library. The difference is that while div_by_n divides a frequency by a fixed
value provided as a parameter, var_div will divide a frequency by a variable value
provided at it's D[] input
|
#17:
Steven Groom |
Percentage Module, outputs A*100/B |
#18:
Steven Groom |
Improved UART |
#19:
Keith Willis |
Fully Programmable UART, version 1.1 |
#20:
Nik Snoek |
PRBS module |
#21:
Peter Szymansky |
Byte Wide CRC32 Generator/Detector |
#22:
Steven Groom |
Bit Serial Multiplier |
#23:
Steven Groom |
Arithmetic Logic Unit |
#24:
Steven Groom |
Sine/Cosine using the CORDIC algorithm |
#25:
Sven Zeisberg |
Generating Sine/Cosine using integrators |
#26:
Steven Groom |
Sequential multiplier using Booth's Algorithm |
#27:
Steven Groom |
Very fast exp(i), Sine/Cosine |
#28:
pealed@
phasemetrics.com |
Parameterized variable length pipeline |
