公开(公告)号：US20140098926A1

公开(公告)日：2014-04-10

申请号：US14045700

申请日：2013-10-03

Applicant: Rohm Co., Ltd.

Inventor： Takaaki FUCHIKAMI ,  Noriyuki EMA ,  Hiromitsu KIMURA ,  Yoshikazu Fujimori

IPC: G06M1/10

CPC classification number: G06M1/10 ,  H03K21/023 ,  H03K21/12 ,  H03K21/38 ,  H03K21/403

Abstract: A counter includes: a count processing circuit including a nonvolatile register; a regulator receiving voltage from a direct current power supply, generating power supply voltage based on the received voltage for the count processing circuit, and supplying the power supply voltage to the count processing circuit; and a delay circuit receiving the power supply voltage and supplying a count signal to the count processing circuit after the power supply voltage is supplied to the count processing circuit. After having received the power supply voltage from the regulator, the count processing circuit updates a count value in response to the count signal and holds the updated count value in the nonvolatile register in a non-volatile manner.

Abstract translation: 计数器包括：包括非易失性寄存器的计数处理电路; 调节器，其从直流电源接收电压，基于所述计数处理电路的接收电压产生电源电压，并将所述电源电压提供给所述计数处理电路; 以及在向所述计数处理电路提供所述电源电压之后，接收所述电源电压并将计数信号提供给所述计数处理电路的延迟电路。 在从调节器接收到电源电压之后，计数处理电路响应于计数信号更新计数值，并以非易失性的方式将更新的计数值保持在非易失性寄存器中。