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CPX4 AC-PLC Evaluation Kit M02D2 RTK0EE0009D02001BJ
3.2.6 OCD-connector (CN305)
The OCD connector (CN305) is a connector for connecting an emulator. When connecting to a development tool via
an emulator, set the target power supply to operate with "user power supply", and supply line power or external power to
the AC-PLC board.
Figure 3-3 shows the connection configuration with the emulator. Table 3-12 shows the terminal information of the
OCD connector (CN305).
Terminal
number
When writing/erasing programs to the MCU(RX651) via the emulator using the development tool, make the settings
shown in Table 3-13. (See the documentation for your emulator for more information.)
Switch/JP
JP301
SW7
R30UZ0165EJ0100 Rev.1.00
July 01, 2021
Figure 3-3 Connection configuration with the emulator
Table 3-12 OCD connectors (CN305)
Terminal name
1
TCK
2
GND
3
TRST#
4
EMLE
5
TDO
6
NC
7
MD
8
VDD
9
TMS
10
UB
11
TDI
12
GND
13
RES#
14
GND
Table 3-13 Setting of Firmware update mode
Setting
Open
USE MCU
Function
RX651-TCK
GND
RX651-TRST#
RX651-EMLE
RX651-TDO
Open (not connected)
RX651-MD
3.3V
RX651-TMS
RX651-PC7
RX651-TDI
GND
RX651-RES#
GND
Function
On-chip emulator enable setting
MCU(RX651) operation mode
3．Interface Specifications
Page 33 of 53
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