Datasheet

Reset
Freedom FRDM-KV31F Development Platform User’s Guide, User's Guide, 0, 02/2016
Freescale Semiconductor, Inc. 11
Figure 8. RGB LED
9. Serial Port
The primary serial port interface signals are PTB16 UART0_RX and PTB17 UART0_TX. These signals
are connected to the OpenSDA circuit.
10. Reset
The reset signal on the K20 is connected externally to a push button, SW1, and also to the OpenSDAv2
circuit. The reset button can be used to force an external reset event on the target MCU. The reset button
can also be used to force the OpenSDA circuit into bootloader mode. For more details, see Section 3.2,
“Serial and debug adapter (OpenSDAv2)”.
Figure 9. Reset circuit