公开(公告)号：US20150186209A1

公开(公告)日：2015-07-02

申请号：US14631709

申请日：2015-02-25

Applicant: BROADCOM CORPORATION

Inventor： Veronica ALARCON ,  Walid Nabhane ,  Mark Norman Fullerton ,  Love Kothari ,  Ronak Subhas Patel ,  Chih-Tsung Hsieh ,  Hao-zheng Lee

IPC: G06F11/10 ,  G11C7/10

CPC classification number: G06F11/1048 ,  G01R19/003 ,  G01R31/36 ,  G01R31/40 ,  G05F1/625 ,  G06F1/26 ,  G06F1/3206 ,  G06F1/3287 ,  G06F11/1016 ,  G06F11/3031 ,  G06F11/3058 ,  G06F11/3062 ,  G06F11/3093 ,  G06F13/126 ,  G11C7/106 ,  G11C7/1072 ,  H02J7/0029 ,  Y02D10/171

Abstract: A method for serial interface clock domain crossing includes identifying a data communication command received over a serial interface. An address is decoded to determine whether the address falls within a direct latch address range of a register bank. Data is communicated over the serial interface. A multiplexed output clock is generated, for writing to and reading from the register bank, based on at least one of a current system operating state and a refresh control signal from a host processor.

Abstract translation: 用于串行接口时钟域交叉的方法包括识别通过串行接口接收的数据通信命令。 地址被解码以确定地址是否落在寄存器组的直接锁存器地址范围内。 数据通过串行接口传送。 基于来自主处理器的当前系统操作状态和刷新控制信号中的至少一个，产生多路复用的输出时钟，用于写入寄存器组和从寄存器组读取。