Renesas EK-RA4E2

Renesas RA Family EK-RA4E2 v1 – User's Manual
R20UT5175EG0300 Rev. 3.00 Page 17 of 30
Feb.27.23
Table 8. JTAG/SWD Connector (J20)
JTAG Connector
EK-RA4E2
Pin
JTAG Pin Name
SWD Pin Name
Signal/Bus
J20-1
Vtref
Vtref
+3V3
J20-2
TMS
SWDIO
P108/SWDIO
J20-3
GND
GND
GND
J20-4
TCK
SWCLK
P300/SWCLK
J20-5
GND
GND
GND
J20-6
TDO
SWO
P109
J20-7
Key
Key
NC
J20-8
TDI
NC/EXTb
P110
J20-9
GNDDetect
GNDDetect
GND (cut E30 to open)
J20-10
nSRST
nSRST
RESET# (via J8)
J20-11
N/A
N/A
GND
J20-12
N/A
N/A
NC
J20-13
N/A
N/A
GND
J20-14
N/A
N/A
NC
J20-15
N/A
N/A
GND
J20-16
N/A
N/A
TRST
J20-17
N/A
N/A
GND
J20-18
N/A
N/A
NC
J20-19
N/A
N/A
GND
J20-20
N/A
N/A
NC
Table 9. JTAG/SWD Connector (J13)
JTAG Connector
EK-RA4E2
Pin
JTAG Pin Name
SWD Pin Name
Signal/Bus
J13-1
Vtref
Vtref
+3V3
J13-2
TMS
SWDIO
P108/SWDIO
J13-3
GND
GND
GND
J13-4
TCK
SWCLK
P300/SWCLK
J13-5
GND
GND
GND
J13-6
TDO
SWO
P109
J13-7
Key
Key
NC
J13-8
TDI
NC/EXTb
P110
J13-9
GNDDetect
GNDDetect
GND (cut E30 to open)
J13-10
nSRST
nSRST
RESET# (via J8)
Note: The Cortex
®
Debug Connector is fully described in the Arm
®
CoreSight
™
Architecture Specification.
5.2.3 Debug Out
The EK-RA4E2 board can be configured to use the RA4M2 debug MCU to debug target RA MCU on an
external board.
A yellow indicator, LED5, shows the visual status of the debug interface. When the EK-RA4E2 board is
powered on, and LED5 is blinking, this indicates that the RA4M2 debug MCU is not connected to a
programming host. When LED5 is on solid, this indicates that the RA4M2 debug MCU is connected to a
programming interface.
To configure the EK-RA4E2 board to use the Debug Out mode, configure the jumpers according to the
following table.