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It is sometimes integrated with simulated peripheral circuits such as timer s , interrupt s , serial port s , general I/O port s , etc. to mimic the behavior of a microcontroller .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None