Invention Grant
- Patent Title: Method for the data transfer between at least two clock domains
- Patent Title (中): 用于至少两个时钟域之间数据传输的方法
-
Application No.: US12355234Application Date: 2009-01-16
-
Publication No.: US08176353B2Publication Date: 2012-05-08
- Inventor: Thorsten Lutscher
- Applicant: Thorsten Lutscher
- Applicant Address: KY Grand Cayman
- Assignee: Trident Microsystems (Far East) Ltd.
- Current Assignee: Trident Microsystems (Far East) Ltd.
- Current Assignee Address: KY Grand Cayman
- Agency: DLA Piper LLP (US)
- Priority: DE102008004857 20080117
- Main IPC: G06F1/04
- IPC: G06F1/04

Abstract:
The invention describes a method for transferring data between a first clock domain having a first clock rate (CLK1) and at least one additional clock domain having a second clock rate (CLK2), comprising the following for the transfer of data from the first to the second clock domain (CLK1, CLK2): reading in of a data item in accordance with the first clock rate (CLK1) into a first memory (11), and locking of the first memory after saving the data item, signalizing a transfer start after saving the data item in the first memory (11) by means of a transfer start signal (TS), reading out the data item from the first memory, and reading in the data item into a second memory, each according to the second clock signal (CLK2), processing the transfer start signal (TS) according to the second clock signal (CLK2) for generating a transfer end signal (TD), processing the transfer end signal (TD) according to the first clock signal (CLK1) for generating a release signal (TD′) and releasing the first memory as a function of the release signal (TD′).
Public/Granted literature
- US20090193285A1 Method for the data transfer between at least two clock domains Public/Granted day:2009-07-30
Information query