Hello,
I would like to add a description from the RM v.1.25.
"The MC9S12XE-Family features an enhanced version of the performance-boosting XGATE co-processor which is programmable in “C” language."
The reduced code size for the Basic Suite means that the HCS12(X) code and data size restricted to 64K and XGATE code and data size restricted to 512 bytes
For Standard and Professional suite is "Unlimited C compiler and C sourcelevel debugger for HCS12, HCS12X and XGATE"
Best Regards,
Diana