RX24T CPU Card
User’s Manual
R20UT3696EJ0120 Rev.1.20
Page 13 of 25
Feb. 21, 2019
6. Functions
6.1
Power Supply
The product does not have a dedicated power supply connector. When connected to the INV-BRD it draws power via
the connector. When not connected to the INV-BRD, it can draw power via the E1 connector. The product is not
allowed to draw power via the E1 connector when it is connected to the INV-BRD.
6.2
Connecting the E1 Emulator
The E1 on-chip debugging emulator from Renesas Electronics is used to write software (program) to the flash memory
of the RX24T. Software will be downloaded into the product via E1 emulator. It is also necessary to make the settings
shown in Table 6.1 in the integrated development environment to enable the emulator to supply power to the product.
Table 6.2 lists the pin assignments of the E1 connector.
Table 6.1 E1 Emulator Power Supply Settings
Connection to INV-BRD
Power Supply Setting
Connected
Power supply not allowed
*
1
Not connected
5 V power supply
Note 1.
When connected to the INV-BRD, the product must draw power from the INV-BRD.
Table 6.2 Pin Assignments of E1 Connector (CN1)
Pin No.
Pin Function
RX24T
Connection Pins
Pin No.
Pin Function
RX24T
Connection Pins
1
NC
⎯
2
GND
VSS
3
NC
⎯
4
NC
⎯
5
TXD
PD3/TXD1
6
NC
⎯
7
MD/FINED
MD/FINED
8
VCC
VCC
9
NC
⎯
10
NC
⎯
11
RXD
PD5/RXD1
12
GND
VSS
13
RESET
RES#
14
GND
VSS
Note: See r20ut0399ej0801_e1e20_rx.pdf, a supplement to the E1/E20 emulator
user’s manual.
