# define the CPU architecture for the kw2xd
  export CPU_ARCH = cortex-m4
  
  # map CPU models to generic Kinetis linkerscript
  LD_KW21D256 = kinetis_f256l16u16.ld
  LD_KW21D512 = kinetis_f512l32u32.ld
  LD_KW22D512 = kinetis_f512l32u32.ld
  
  # tell the build system that the CPU depends on the Kinetis common files
  export USEMODULE += kinetis_common
  
  # define path to kinetis module, which is needed for this CPU
  export KINETIS_COMMON = $(RIOTCPU)/kinetis_common/
  # CPU depends on the kinetis module, so include it
  include $(KINETIS_COMMON)Makefile.include
  
  # this CPU implementation is using kinetis common startup
  export COMMON_STARTUP = $(KINETIS_COMMON)
  
  # add the CPU specific system calls implementations for the linker
  export UNDEF += $(BINDIR)/cpu/vectors.o
  
  include $(RIOTMAKE)/arch/cortexm.inc.mk