Renesas RA4 Series Engineering Manual

Renesas VUI Reference Solution VOICE-RA4E1 Engineering Manual
VOICE-RA4E1 Engineering Manual Rev.1.0 Page
11
of 14
June 2022
8.6 Buttons
There are two mechanical push-button switches on the board. One button is for system/MCU reset (S2).
The second button is a user programmable button (S1).
Table 11. User Button Port Assignment (S1)
MCU Port
User Button Interrupt
P402
IRQ4
8.7 Debug
The VOICE-RA4E1 board supports following three debug modes.
Debug Modes
Debug MCU
(one that connects
to the IDE on PC)
Target MCU
(one that is being
debugged)
Debugging
Interface/Protocol
Connector Used
Debug on-board
RA4M2 (on-board)
RA4E1 (on-board)
SWD, JTAG
Micro USB (J6)
Debug in
External debugging
tools
RA4E1 (on-board)
SWD, JTAG
20-pin connector (J9)
or 10-pin connector
(J8)
Debug out
RA4M2 (on-board)
Any external RA
MCU
SWD, JTAG
20-pin connector (J9)
or 10-pin connector
(J8)
Notes:
• Please cut E9 for Debug out function
• See Table 14 for the Debug USB connector pin definition.
• See Table 15 for the 10-pin JTAG connector pin definition.
• See Table 16 for the 20-pin JTAG connector pin definition.
Table 12. Jumper Connection Summary for Different Debug
Debug Modes
J7
Debug on-board
Open
Debug in
Closed
Debug out
Open
The J-Link On-Board (JLOB) debug interface supporting JTAG, SWD debug interface and also supports the
VCOM (Virtual COM port) function. The debug MCU is a Renesas RA4M2, programmed with J-Link firmware
licensed by Segger. This interface includes one USB micro-B connector (J6) for host debug through the J-
Link MCU, one 10-pin and one 20-pin debug header (supporting JTAG and SWD).
Table 13. Debug USB Connector
Debug USB Connector(J6)
VOICE-RA4E1
Pin
Description
Signal / Bus
J6-1
+5VDC
VBUS2 / TP5
J6-2
Data-
D_N
J6-3
Data+
D_P
J6-4
USB ID, jack internal switch, cable inserted
N.C.
J6-5
Ground
GND / TP6

Renesas RA4 Series Specifications

General

Brand	Renesas
Model	RA4 Series
Category	Motherboard
Language	English