公开(公告)号：US20140281652A1

公开(公告)日：2014-09-18

申请号：US13831063

申请日：2013-03-14

Applicant: NVIDIA CORPORATION

Inventor： Tukaram Shankar Methar ,  Nilesh Acharya ,  Jyotirmaya Swain ,  Brian Lawrence Smith

IPC: H03L7/00 ,  G06F1/12

CPC classification number: H03L7/00 ,  G06F1/12

Abstract: A system and apparatus that include a selectable synchronizer circuit for synchronizing data across asynchronous boundaries are disclosed. The apparatus includes a unit associated with a first clock domain and a synchronizer sub-unit (SSU) coupled to the unit and associated with a second clock domain. The synchronizer sub-unit includes two or more synchronizers and selector logic configured to select one output of the two or more synchronizers.

Abstract translation: 公开了一种包括用于跨异步边界同步数据的可选同步电路的系统和装置。 该设备包括与第一时钟域相关联的单元和耦合到该单元并与第二时钟域相关联的同步器子单元（SSU）。 同步器子单元包括两个或多个同步器和选择器逻辑，其被配置为选择两个或多个同步器的一个输出。