How much embedded program memory in this NXP (aka freescale) KL03 processor?
If you look at the simpler processor, the NXP KL02, you see in its chip specification that the 5 in the 1st line means 32KByte of program memory.  And if you look at a more complex processor, the NXP KL17, you see in its chip specification that the 5 in the 1st line means 32KBytes of program memory.

I appears that NXP failed to include the chip markings into its NXP KL03 processor's specification.  I think it is fair (safe?) to say that the 5 in the 1st line found on the KL03 processor part means that the processor contains 32KBytes of program memory.