Hi Yaran:
I think you can get information from Freescale website. Let's take K64F120 for example, you get go to the following link
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=K64_120&fpsp=1&tab=Documentation_Tab
there, you can get data sheets, errata, application notes, reference manual, user guider....
Some documents located on the installed folder, C:\Freescale\KSDK_1.1.0\doc, C:\Freescale\KSDK_1.1.0\rtos\mqx\doc
You also can get information from our community, search some documents, and some answered questions. It is very helpful.
If you need help, you can post your question on our community, or submit a service request. Please refer to MQX support guider
C:\Freescale\KSDK_1.1.0\rtos\mqx\doc\Freescale MQX RTOS Support User's Guide.pdf
I hope it helps you
Regards
Daniel