Renesas Electronics Corporation

Kenji Ogami

Hiroki Sugimoto

An active period that is expressed by a range of a count value t[x] and is a period during which communication of a packet with an outside is permitted and an inactive period that is expressed by a range of the count value t[x] and is a period during which communication of a packet with an outside is prohibited are defined in schedule data. A wireless communication interface communicates a packet with the outside during the active period. A power supply controller cuts off power supplied to the wireless communication interface during the inactive period. A synchronous controller updates a count value of a counter based on a synchronous data value in the received packet during a reception operation of the packet, define the synchronous data value based on the updated count value t[y] during a transmission operation of the packet, and store it in the packet to be transmitted.

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Tokyo, Japan

Kenji Ogami