Semiconductor system for reducing operating time and operating method thereof

A semiconductor system comprising:

• a memory to store data;
• a first level bus block configured to perform data communication with the memory;
• a second level bus block configured to perform data communication with the first level bus block;
• and
• a third level bus block configured to perform data communication with the second level bus block,
• wherein the first level bus block and the second level bus block are configured to perform a wakeup operation when the wakeup operation on the third level bus block is performed.

An operating method of a semiconductor system comprising bus blocks and a plurality of intellectual property (IP) blocks, the operating method comprising:

• transmitting a first wakeup signal to a second bus block that performs data communication with a first bus block among the bus blocks, while performing a wakeup operation on the first bus block;
• transmitting a second wakeup signal to a third bus block that performs data communication with the second bus block, while performing the wakeup operation on the second bus block in response to the first wakeup signal;
• and
• performing the wakeup operation on the third bus block in response to the second wakeup signal,
• wherein the second bus block is a bus block of a higher level than the first bus block, and
• the third bus block is a bus block of a higher level than the second bus block.