| 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 |
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