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CPX4 AC-PLC Evaluation Kit M02D2 RTK0EE0009D02001BJ
which can reduce the transmit output by more than 10dB under low-load-impedance conditions. See Configuring Table
3-3.
Inductor setting
Use
Not used
3.1.5 JP (JP21) for switching external reset function via USB
JP21 is JP for switching the external reset function via USB. When using the RTS signal via USB as an external reset,
set JP21 to short-circuit.
3.1.6 Serial communication selector switch (SW6)
SW6 is used to select the MCU (RX651) or CPX4 for the serial port to be connected to the USB connector (CN5). For
more information, see section 3.1.12.
3.1.7 Switch for selecting enable/disable of MCU (RX651) (SW7)
The selection switch (SW7) enables/disables the control from the MCU (RX651) to CPX4. The setting of SW7 is
shown in Table 3-4. When using CPX4 SimpleMAC GUI, disable the MCU (factory default).
MCUtatus
MCU disabled
(factory default)
MCU enabled
3.1.8 Reset switch (SW8)
The reset switch (SW8) is a push switch for system reset. Press this button (SW8) to initialize CPX4 and MCU
(RX651).
3.1.9 BOOT setting switch (SW9, SW10)
SW9 and SW10 are set to the selection switch of the BOOT method (UART/SROM/SPI). UART is a BOOT method
using UART communication, the SPI is a BOOT method using SPI communication, and SROM is a BOOT method from
SROM installed in the evaluation kit. The factory default is UART Boot. Table 3-5 shows the switching pattern of SWs.
Boot method
UART (factory default)
SROM
SPI
R30UZ0165EJ0100 Rev.1.00
July 01, 2021
Table 3-3 JP(JP8) setting for inductor switching3
JP8 Setting
Open
Short
Table 3-4 MCU(RX651) enable/disable setting (SW7)
SW7 Setting
KILL MCU
USE MCU
Table 3-5 CPX4 Boot Settings
Set SW9 (BOOT0) to H and SW10 (BOOT1) to H.
Set SW9 (BOOT0) to L and SW10 (BOOT1) to H.
Set SW9 (BOOT0) to H and SW10 (BOOT1) to L.
Setting conditions
Set when CENELEC-A band
Set when FCC or Global (35 kHz-500 kHz) band
Function
MCU (RX651) disabled
CPX4 is controlled from PCs using CN5 USBs
Resetting CPX4 is controlled by SW8.
MCU (RX651) are enabled
CPX4 is controlled from MCU (RX651)
Resetting of CPX4 is controlled by the MCU (RX651).
Setting
3．Interface Specifications
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