KWIKSTIK-K40 Datasheet, PDF (10/19 Pages) Freescale Semiconductor, Inc – KwikStik board assembly

Pin Function
6 TDO / SWO
7 Key
8 TDI
9 GNDDetect
10 nRESET
TWR-K40X256 Connection
PTA2/SCI0_TX/FTM0_CH7/JTAG_DO/TRACE_SWO/EZP_DO
―
PTA1/SCI0_RX/FTM0_CH6/JTAG_DI/EZP_DI
PTA4/FTM0_CH1/MS/NMI_b/EZP_CS_b
RESET_b
Note: J8 is not populated by default. In order to target an off-board Kinetis device the user will need to
solder on a connector and use a ribbon cable to connect to the external device. J8 can be populated
with a 10-position (2x5), .05” pitch surface-mount header such as the Samtec FTSH-105-01-F-DV or
compatible. Possible ribbon cables include the Samtec FFSD-05-D-06.00-01-N (6”) or FFSD-05-D-12.00-
01-N (12”). The ON/OFF switch of the KwikStik will need to be in the OFF position to turn off the on-
board K40X256 and to provide ground to the cortex debug connector.
2.5 Infrared Port
An infrared transmit and receive interface is implemented as shown in Figure 7 below. The IR_TX pin
drives an infrared diode by switching Q4. The receiver uses an infrared phototransistor connected to
an on-chip analog comparator through an optional low-pass filter. Internal to the K40 device, the
output of the analog comparator can be routed to a UART module for easier processing of the
incoming data stream.
Figure 7. Infrared Port Implementation
2.6 General Purpose Tower Plug-in (TWRPI) Socket
The KwikStik features a socket that can accept a variety of different Tower Plug-in modules featuring
sensors, RF transceivers, and more. The General Purpose TWRPI socket provides access to I2C, SPI,
IRQs, GPIOs, timers, analog conversion signals, TWRPI ID signals, reset, and voltage supplies. The
pinout for the TWRPI Socket is defined in Table 2.
KWIKSTIKK40UM
KwikStik-K40 User's Manual
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