公开(公告)号：US09396790B1

公开(公告)日：2016-07-19

申请号：US14755362

申请日：2015-06-30

Applicant: STMicroelectronics International N.V.

Inventor： Amit Chhabra ,  Kailash Digari

IPC: G11C11/41 ,  G11C11/419

CPC classification number: G11C11/419 ,  G11C5/14 ,  G11C11/417

Abstract: A multi-supply dual port register file is disclosed. The register file may be used for transferring data between two power domains that operate on different voltages or frequencies. The register file comprises a memory cell that stores the data transferred between the domains. The memory cell may be independently supplied by a reference voltage independent of that of the memory periphery. A write power domain write data to the memory cell in accordance with its operating voltage and frequency and an independent read power domain may read data from the memory cell in accordance with its independent operating voltage and frequency. The register file facilitates efficient crossing between the read and write power domains.

Abstract translation: 公开了一种多电源双端口寄存器文件。 寄存器文件可用于在不同电压或频率下工作的两个电源域之间传输数据。 寄存器文件包括存储在域之间传送的数据的存储单元。 存储单元可以独立于存储器周边的参考电压独立地提供。 写功率域根据其工作电压和频率将数据写入存储单元，并且独立的读功率域可以根据其独立的工作电压和频率从存储单元读取数据。 寄存器文件有助于读写功率域之间的有效交叉。