公开(公告)号：US20180365178A1

公开(公告)日：2018-12-20

申请号：US16111668

申请日：2018-08-24

Applicant: Socionext Inc.

Inventor： Hironori KUBO ,  Norihiko MIZOBATA ,  Makoto HIRANO ,  Akihiro SUZUKI ,  Masahiro TAKEUCHI

IPC: G06F13/16 ,  G11C5/14 ,  G05F1/12 ,  G06F1/32

Abstract: A semiconductor integrated circuit operates with a voltage supplied from a first power supply IC to transmit and receive data to and from an external memory. The semiconductor integrated circuit includes: an interface circuit operating with a voltage supplied from a second power supply IC and accessing the external memory to transmit and receive data to and from the external memory; a determination circuit which determines, based on a result of the access by the interface circuit, an AC timing specification between the external memory and the interface circuit to generate control information for controlling an output voltage of the second power supply IC in accordance with the AC timing specification; and a voltage control circuit which controls the output voltage of the second power supply IC in accordance with the control information.

公开(公告)号：US20160091943A1

公开(公告)日：2016-03-31

申请号：US14964435

申请日：2015-12-09

Applicant: Socionext Inc.

Inventor： Hironori KUBO ,  Norihiko MIZOBATA ,  Makoto HIRANO ,  Akihiro SUZUKI ,  Masahiro TAKEUCHI

IPC: G06F1/26 ,  G05F1/12

CPC classification number: G06F13/1689 ,  G06F1/3243 ,  G06F1/3296 ,  G11C5/147 ,  Y02D10/152 ,  Y02D10/172

Abstract: A semiconductor integrated circuit operates with a voltage supplied from a first power supply IC to transmit and receive data to and from an external memory. The semiconductor integrated circuit includes: an interface circuit operating with a voltage supplied from a second power supply IC and accessing the external memory to transmit and receive data to and from the external memory; a determination circuit which determines, based on a result of the access by the interface circuit, an AC timing specification between the external memory and the interface circuit to generate control information for controlling an output voltage of the second power supply IC in accordance with the AC timing specification;and a voltage control circuit which controls the output voltage of the second power supply IC in accordance with the control information.

Abstract translation: 半导体集成电路利用从第一电源IC提供的电压来操作以从外部存储器发送数据和从外部存储器接收数据。 半导体集成电路包括：接口电路，其工作电压为从第二电源IC提供的电压，并访问外部存储器，以向外部存储器发送数据; 确定电路，其基于所述接口电路的访问结果确定所述外部存储器和所述接口电路之间的AC定时规格，以产生用于根据所述AC控制所述第二电源IC的输出电压的控制信息 时序规范; 以及电压控制电路，其根据控制信息来控制第二电源IC的输出电压。