- 专利标题: Link training to recover asynchronous clock timing margin loss in parallel input/output interfaces
-
申请号: US15363075申请日: 2016-11-29
-
公开(公告)号: US09742603B1公开(公告)日: 2017-08-22
- 发明人: Chenchu Punnarao Bandi , Amit Kumar Srivastava , Sabyasachi Mohapatra
- 申请人: INTEL CORPORATION
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Lowenstein Sandler LLP
- 主分类号: H03D3/24
- IPC分类号: H03D3/24 ; H04L27/152 ; H04L7/00 ; H04L7/033
摘要:
In accordance with embodiments disclosed herein, there is provided systems and methods for link training between a host device and a device. The host device includes a clock source, front-end circuitry, a duty cycle monitor (DCM), link training logic, and a duty cycle adjustor (DCA). The front-end circuitry is to transmit a training sequence and a forward clock signal to the device and is to receive a strobe signal from the device over a physical transmission media. The DCM is to monitor duty cycle of the strobe signal and duty cycle of the clock signal. The link training logic is to determine a adjustment to the clock signal and is to generate a control signal. The DCA is to receive the clock signal and the control signal and is to adjust the clock signal to generate an adjusted forward clock signal in view of the control signal.
信息查询
IPC分类: