Hello Wojciech,
I am glad to help.
The device you are speaking is the MC9S08QG8 MCU.
The S08QG Family of microcontrollers provide a wide variety of serial interfaces and peripherals, normally found in higher-end devices, all in a small package. Featuring low-power S08 8-bit architecture, S08QG devices are a perfect fit for battery-powered devices.
You may find useful information as the datasheet and application notes (Documentation tab) at the following link:
8-bit Small Package QG MCUs|NXP
I hope this information will be useful for you.
If I misunderstood your question, feel free to let me know. I will be glad to help.
Have a great day.
David Diaz.
PS: If my answer helps to solve your question, please mark it as "Correct". Thank you.