Pmod interface (peripheral module interface) is an
open standard defined by
Digilent Inc. in the ''Digilent Pmod Interface Specification''
for connecting peripheral modules to
FPGA and
microcontroller development boards.
Overview
Modules are available from simple push buttons to more complex modules with
network interfaces, analog to digital converters or
LCD displays. These modules can be used with a variety of FPGA or microcontroller development boards from different vendors. Pmods are not necessarily plug-and-play - software and configuration is required - but the hardware interface is pre-designed and modules can be quickly assembled with host boards for prototyping or evaluation purposes with no soldering required.
Pmods come in a standard 6-pin interface with 4 signals, one ground and one power pin. Double and quad Pmods also exist. These duplicate the standard interface to allow more signals to pass through to the module.
Pmods can use either
SPI,
I2C or
UART
A universal asynchronous receiver-transmitter (UART ) is a computer hardware device for asynchronous serial communication in which the data format and transmission speeds are configurable. It sends data bits one by one, from the least signific ...
protocol. With I
2C it is possible to use a 4-pin connector. Alternatively the pins 1 to 4 can be used as simple digital I/O pins.
Revisions
See also
*
Asynchronous serial bus such as
RS-232
In telecommunications, RS-232 or Recommended Standard 232 is a standard originally introduced in 1960 for serial communication transmission of data. It formally defines signals connecting between a ''DTE'' (''data terminal equipment'') such ...
and
RS-422
RS-422, also known as TIA/EIA-422, is a technical standard originated by the Electronic Industries Alliance that specifies electrical characteristics of a digital signaling circuit. It was meant to be the foundation of a suite of standards that ...
.
*
UEXT
Universal EXTension (UEXT) is a connector layout which includes power and three serial buses: Asynchronous, I2C, and SPI. The connector layout was specified by Olimex Ltd and declared an open-project that is royalty-free.
Physical characteris ...
References
External links
Pmod modules- Digilent
* - YouTube
Electrical signal connectors
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