Cypress CY3274, Руководство пользователя

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CY3274 Cypress High Voltage Programmable PLC Development Kit Guide, Doc. # 001-53598 Rev. *G 47
PLC Development Board
4.3.3 RJ45 Connector for Debugging
The RJ45 ICE Cube Emulation Connector (J14) provides a debug interface between the
CY8CPLC20 device and the ICE Cube emulation tool using the PSoC Designer software
application. A CY3215-DK In-Circuit Emulation Development kit is required to interface the PC to
this board. It can be purchased at
http://www.cypress.com/go/CY3215-DK .
Figure 4-6. RJ45 Connector
4.3.4 RS232 COM Port
The RS232 COM Port can be used with a standard RS232 cable to connect two RS232 capable
devices together. The RS232 (J20) header is a four pin header that has connections for the RX, TX,
RTS, and CTS lines. These need to be wired to port pins to connect the device to the respective pins
on the RS232 DB9 port.
Figure 4-7. RS232-COM
Table 4-2. Controls Associated with Port
Control Description
RX The board receives the RS232 information through this pin.
TX The board transmits RS232 information through this pin.
RTS The host asks the chip if it can send information through this pin.
CTS The chip signals that it is ready to accept information through RX.