Invention Grant
- Patent Title: Methods and apparatus for synchronizing data transferred across a multi-pin asynchronous serial interface
- Patent Title (中): 用于同步跨多针异步串行接口传输的数据的方法和装置
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Application No.: US11097579Application Date: 2005-04-01
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Publication No.: US07936793B2Publication Date: 2011-05-03
- Inventor: Emilio J. Quiroga , Mahibur Rahman
- Applicant: Emilio J. Quiroga , Mahibur Rahman
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agency: Ingrassia Fisher & Lorenz, P.A.
- Main IPC: H04J3/06
- IPC: H04J3/06 ; H04L7/08

Abstract:
Methods, devices and systems are provided for word synchronizing multiple serial data bitstreams (106) with a serial framing signal (106A). Offset values (420) are determined (512) from the relative locations of predetermined data correlation values (107) stored within the data buffers during a correlation mode to indicate the amount of skew observed between the framing channel and each of serial data channels. Data received during subsequent operation of each data stream is stored a buffer (402), and the framing signal (106A) is monitored to identify a boundary between data words. When a frame boundary occurs, parallel data is extracted from the buffer using the previously-stored offset values to compensate for bit skew between the data and framing channels.
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