发明授权
- 专利标题: Automated calibration of I/O over a multi-variable eye window
- 专利标题(中): 通过多变量眼睛窗口自动校准I / O
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申请号: US11224277申请日: 2005-09-12
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公开(公告)号: US07296104B2公开(公告)日: 2007-11-13
- 发明人: Brian L. Smith , Jue Wu , Jyh-Ming Jong , Wai Fong , Leo Yuan , Prabhansu Chakrabarti
- 申请人: Brian L. Smith , Jue Wu , Jyh-Ming Jong , Wai Fong , Leo Yuan , Prabhansu Chakrabarti
- 申请人地址: US CA Santa Clara
- 专利权人: Sun Microsystems, Inc.
- 当前专利权人: Sun Microsystems, Inc.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Meyertons Hood Kivlin Kowert & Goetzel, P.C.
- 代理商 Erik A. Heter
- 主分类号: G06F13/42
- IPC分类号: G06F13/42 ; G06F11/04 ; G06K5/04
摘要:
A method and apparatus for automated calibration of I/O over a multi-variable eye window is provided. A transmitter may conduct data transmissions to a receiver of an integrated circuit (IC) over a plurality of signal lines. The data transmissions may be conducted according to a certain parameters or sets of parameters. Parameters may include voltage levels at which signals are transmitted or timing delays. The receiver may determine whether the correct data value was received over each signal line. The results may be recorded in a storage mechanism in the same IC as the receiver. The storage mechanism may, for each signal line, store a pass/fail result corresponding to the particular parameters for the data transmission. The system may select the parameters which subsequent transmissions are to be conducted over each of the plurality of signal lines from the storage mechanism.
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