Freescale Semiconductor, Inc

FRDM-KL46Z

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Figure 5 SWD Debug Connector

Note that J11 is not-populated by default. A Samtec FTSH-105-02-F-D or compatible connector can be added to

the J11 through-hole connector. A mating cable, such as a Samtec FFSD IDC cable, can then be used to connect

from the OpenSDA of the FRDM-KL46Z to an off-board SWD connector.

Virtual Serial Port

A serial port connection is available between the OpenSDA MCU and pins PTA1 and PTA2 of the KL46. Several of

the default OpenSDA Applications provided by Freescale, including the MSD Flash Programmer and the P&E

Debug Application, provide a USB Communications Device Class (CDC) interface that bridges serial

communications between the USB host and this serial interface on the K20.

5.3 MKL46Z4 Microcontroller

The target microcontroller of the FRDM-KL46Z is the KL462Z256VLL4, a Kinetis L series device in an 100 LQFP

package. The KL46Z MCU features include:.

 32-bit ARM Cortex-M0+ core

o up to 48 MHz operation

o Single-cycle fast I/O access port