Default Board Configuration - Renesas S3A1 User Manual

Target Board Kit S3A1 (TB-S3A1)
3.1.2

Default board configuration

The following table describes the default settings for each jumper on the TB-S3A1 Target Board. This includes
traditional pin jumpers (Jx designation) and copper jumpers (Ex designation.)
The Circuit Group for each jumper is the designation found in the board schematic. (See Section 5: Electrical
Schematics.) Functional details for many of the listed jumpers may be found in Section 4.4: Connectivity and Settings
and Section 4.6: Additional Features.
Table 1 Default jumper settings
Location Circuit Group
J8 MCU Mode
Config
E18
E19
12M Crystal
E23
E24
E1 3.3V Linear
Regulator
E22
E25
32K Crystal
E26
E27
E10 AVCC0->
+3V3MCU
E11 AVSS0->GND
E2
Capacitive Touch
Button
E5
E28
EXT VCL and
VCL CAP
E29
E32
E33
E34
J-Link
E37
E38
R12UM0022EU0100 Rev.1.00
Feb 6, 2018
Default
Open/Closed
Shunt on pins Sets the MCU Mode to boot from Internal Flash
1-2
Open Connects signal P213 to MCU
Open Connects signal P212 to MCU
Closed Connects 12.000 MHz Crystal to MCU
Closed Connects 12.000 MHz Crystal to MCU
Closed Alternate 3.3V source (+3V3JLOB)
Open Connects signal P215 to MCU
Closed Connects 32.768 kHz Crystal to MCU
Closed Connects 32.768 kHz Crystal to MCU
Open Connects signal P214 to MCU
Closed Connects +3V3MCU to AVCC0
Closed Connects AVSS0 to Ground
Closed Enable/Disable Capacitive Touch Button
Open Connects signal P115J to Capacitive Touch Button
Open Connects VCL to MCU
Closed Connects MCU pin 15 (VCL) to capacitor
Closed Connects the S124 MCU to the J-Link signal JLED
Closed Connects the S124 MCU to the J-Link signal RESET#
Closed Connects the S124 MCU to the J-Link signal
TDO(/SWO) P109
Closed Connects the S124 MCU to the J-Link signal
P108/SWDIO
Closed Connects the S124 MCU to the J-Link signal
P300/SWCLK
Getting Started
Function
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