No longer so. A new version of the MK60 emulator is made with IKE-gateway function. The MK60 emulator now supports the mss54/mss54hp with EWS enabled. While the atMega328p-au microprocessor has been used so far, the atMega1284p-mu is used in the new version. Support for EWS required serving both the DBus and KBus, and hence a change in the hardware was necessary. With two serial interfaces on-chip, the atMega1284p-mu was a perfect match.