F1KM-S4, F1KH-D8 272pin PiggyBack board  Y-RH850-F1X-272PIN-PB-T2-V1 
R20UT4009ED0100 Rev.1.0  13 
2017-07-12 
Chapter 6  Other circuitry 
6.1  Push button for RESET 
In order to issue a RESET to the device, the push-button SW1 is available. 
6.2  Mode Selection 
The PiggyBack Board gives the possibility to configure the following jumpers 
 
  FLMD0 via jumper JP12 
  FLMD1 via jumper JP13 
  MODE0 via jumper JP14 
  MODE1 via jumper JP15 
  MODE2 via jumper JP16 
To apply “High” or “Low” to the mode pins, the pins 1 and 2, or the pins 2 and 3 
(if available) of the corresponding jumper must be closed, respectively. 
Note: Pin 1 of all jumpers is marked by a small circle. 
CAUTION: Be careful in configuration of mode related pins. Wrong configuration 
and operation of the device outside of its specification can cause irregular 
behaviour of the device and long term damage cannot be excluded. Be sure to 
check the corresponding User’s Manual for details, which modes are specified for 
the used device. 
 
Note: 
In the very most cases the ‘Normal operating mode’ of the device will be used. 
This mode is for execution of the user program. The on-chip debug functions also 
use this mode. 
To select the ‘Normal operating mode’ of the device, the FLMD0 pin must be 
pulled low. To do so, close the pins 2-3 on the jumper JP12: 
 
All other jumpers related to the mode selection can be left open.