PLC LV Evaluation Board
Table 3-6. Jumper Description
Jumper Name
Use
This is not a jumper. It is a 2-pin header to connect the interrupt pin of the CY8CPLC10
device to an external host. Refer to the CY3273 board schematics to determine interrupt
and ground pins for this header.
INT
This jumper should be connected if the user wants to provide power to an external board.
After this jumper is connected, power for the external board can be derived from the V
(VDD) and G (Gnd) connectors on the I2C header (J5). For example, if we connect
PWR
another PSoC EVAL1 board with this board, the PLC board can supply power to that
board too. The CY3273 board can provide a maximum of 50 mA at 5 V to an external
board through the V and G pins on the I2C header (J5).
This jumper is for enabling reset of the PLC device through an external board. After this
jumper is connected, the external board reset can be connected to the R (Reset) pin on
the I2C header (J8).
RES
SCL
This is a pull up jumper. While communicating through I2C (J8), one side has to pull up
the line. When the jumper is connected, the SCL line gets pulled high. This needs to be
done when the user wants the I2C link to be pulled up by the CY3273 board.
This jumper does not need to be placed if the USB-I2C bridge is used for communication
to the host.
This is a pull up jumper. While communicating through I2C (J8), one side has to pull up
the line. When the jumper is connected, the SDA line is pulled high. This must be done
when the user wants the I2C link to be pulled up by the CY3273 board.
SDA
CLK
This jumper does not need to be placed if the USB-I2C bridge is used for communication
to the host.
This jumper is not available for use and should be left unconnected by the user.
3.5
3.6
Code Example
The CY3273 kit is designed for systems that require a communication interface over low voltage
powerlines. Typically, these systems consist of a microcontroller or processor along with other elec-
tronic components that implement the host application functionality. For more information on this
interface, refer to AN52478 - Designing an External Host Application for Cypress's Powerline Com-
munication IC CY8CPLC10.
Technical Reference
For a real-time list of knowledge base articles for the CY3273 kit, refer to our Online Knowledge
Base. For any help with the installation of the Control Panel, refer to the Control Panel User Guide
provided in the kit CD. You can also download the latest revision of the GUI setup and user guide
from www.cypress.com/go/plc.
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CY3273 Cypress Low Voltage Powerline Communication Evaluation Kit Guide, Doc. # 001-55382 Rev. *C
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