Renesas Synergy™ Platform
Target Board Kit S1JA (TB-S1JA)
R12UM0025EU0101 Rev.1.01
Page 15 of 31
Apr.21.20
5.4 Connectivity and Settings
Throughout this section, feature configuration using copper jumpers is described. See section 3.1.1, Copper
Jumpers for information on using copper jumpers.
5.4.1 Device USB
The DEVICE USB Micro-B connection jack connects the Main MCU to an external USB Host, FS capable,
allowing communications for testing and use of the Main MCU firmware. Power for the Target Board cannot
be received from this connector. The DEVICE USB interface can detect the presence of power from the USB
Host PC. USB Host power received at the DEVICE USB interface is not connected to the Target Board 5 V
power bus.
Table 2. DEVICE USB Connector (J9)
USB Device Connector
TB-S1JA
Pin
Description
Signal/Bus
1
+5VDC, connected to a sense voltage 2/3 divider to allow
Main MCU sensing of Host presence
+5VUSB
P407/USB_VBUS = 2/3(5VUSB)
2
Data-
P915/USB_DM
3
Data+
P914/USB_DP
4
USB ID, jack internal switch, cable inserted
N.C.
5
Ground
GND
Connections in Table 2 are based on the condition of copper jumpers E16, E17, E20,
E21, and E30 matching their as-manufactured status. As manufactured, E16 and E17 are
closed, E20 and E21 are open, and E30 is closed.
Alternatively, the Device USB signals to the Main MCU may be connected to MCU Pin
Header J1. To enable this configuration, copper jumpers E16 and E17 should be open,
and E20 and E21 should be closed.
5.4.2 Debug USB
The DEBUG USB Micro-B connection jack connects
the S124 J-Link MCU to an external USB Host, FS
capable, allowing re-programming and debugging of
the Main MCU firmware. Power for the Target Board
may be received from this connector.
The J-Link OB interface is multiplexed with the JTAG interface, and can collectively be
referred to as the Programming Interface. While the J-Link OB interface and the JTAG
interface do not conflict, the J-Link OB signals may be isolated from the programming
interface by changing the associated copper jumpers.
J-Link Disconnect Copper Jumpers E32, E33, E37, and E38 connect the J-Link signals to
the MCU programming interface. To isolate the J-Link signals from the JTAG interface,
the copper jumpers must be open. To allow use of the J-Link interface, each copper
jumper must be closed.
J-Link MCU Power Copper Jumper, E1, connects the main +3.3V power to the J-Link
+3.3V power. The default condition for E1 is closed, which connects the J-Link MCU
power to the main +3.3V power. If J-Link signals are disconnected, the power to the
J-Link MCU should also be removed by changing E1 to open.
Table 3. DEBUG USB Connector (J11)
DEBUG USB Connector
TB-S1JA
Pin
Description
Signal/Bus
1
+5VDC
+5V_JUSB
2
Data-
U2 USB_DM (U2-18)
3
Data+
U2 USB_DP (U2-19)
4
USB ID, jack internal switch, cable inserted
N.C.
5
Ground
GND