发明授权
US08477831B2 Multi-protocol multiple-data-rate auto-speed negotiation architecture for a device
有权
用于设备的多协议多数据速率自动速度协商架构
- 专利标题: Multi-protocol multiple-data-rate auto-speed negotiation architecture for a device
- 专利标题(中): 用于设备的多协议多数据速率自动速度协商架构
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申请号: US12860482申请日: 2010-08-20
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公开(公告)号: US08477831B2公开(公告)日: 2013-07-02
- 发明人: Divya Vijayaraghavan , Chong H. Lee
- 申请人: Divya Vijayaraghavan , Chong H. Lee
- 申请人地址: US CA San Jose
- 专利权人: Altera Corporation
- 当前专利权人: Altera Corporation
- 当前专利权人地址: US CA San Jose
- 代理机构: Ropes & Gray LLP
- 代理商 Jeffrey H. Ingerman
- 主分类号: H04L27/06
- IPC分类号: H04L27/06
摘要:
An interface for use in a local device includes a transmitter portion programmably configurable to at least three data rates, a receiver portion programmably configurable to those at least three data rates, and an automatic speed negotiation module operatively connected to the transmitter portion and the receiver portion to configure the transmitter portion and the receiver portion for communication with a remote device at a single data rate that is a best available one of those at least three data rates. The date rate can be adjusted by adjusting transmitter data path width and receiver data path width, adjusting a frequency of said transmitter data path and said receiver data path, and oversampling. Byte serialization or deserialization can be enabled or disabled to alter the width of the data, depending on the data rate, for transfer to/from the remainder of the local device.