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公开(公告)号:US08407509B2
公开(公告)日:2013-03-26
申请号:US12901579
申请日:2010-10-11
申请人: Rajeev Sharma , Ajay Kumar , Naresh Dhamija , Atul Gupta , Ajay K. Gaite , Llamparidhi l
发明人: Rajeev Sharma , Ajay Kumar , Naresh Dhamija , Atul Gupta , Ajay K. Gaite , Llamparidhi l
CPC分类号: G06F13/1689 , G06F13/4243
摘要: A method for compensating for variations in timing of data sent to a processor on data bit lines relative to a strobe clock sent to the processor on a strobe clock line that can be used in a dual data rate (DDR) memory identifies discrete minimum and maximum time offset values for test data in selected data bit patterns for the data bit lines. The discrete minimum time offset value is the minimum timing adjustment required to allow the processor to receive the data in a steady-state condition during a data valid window of the strobe clock and the discrete maximum time offset value is a maximum timing adjustment required to allow the processor to receive the data in a steady-state condition during a data valid window of the strobe clock. The discrete minimum and maximum time offset values identify a valid range when the data bit lines supply data in a steady-state condition for latching into the processor by the strobe clock.
摘要翻译: 用于补偿在数据位线上相对于在双数据速率(DDR)存储器中使用的选通时钟线上发送到处理器的选通时钟的数据位线发送的数据的时序变化的方法,该方法能够识别离散的最小和最大值 用于数据位线的选定数据位模式中的测试数据的时间偏移值。 离散的最小时间偏移值是在选通时钟的数据有效窗口期间允许处理器在稳态条件下接收数据所需的最小定时调整,并且离散最大时间偏移值是允许允许的最大定时调整 所述处理器在所述选通时钟的数据有效窗口期间以稳态条件接收所述数据。 当数据位线在稳态条件下提供数据以通过选通时钟锁存到处理器中时,离散的最小和最大时间偏移值标识有效范围。
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公开(公告)号:US20120089857A1
公开(公告)日:2012-04-12
申请号:US12901579
申请日:2010-10-11
申请人: Rajeev Sharma , Ajay Kumar , Naresh Dhamija , Atul Gupta , Ajay K. Gaite , IIamparidhi I
发明人: Rajeev Sharma , Ajay Kumar , Naresh Dhamija , Atul Gupta , Ajay K. Gaite , IIamparidhi I
IPC分类号: G06F1/04
CPC分类号: G06F13/1689 , G06F13/4243
摘要: A method for compensating for variations in timing of data sent to a processor on data bit lines relative to a strobe clock sent to the processor on a strobe clock line that can be used in a dual data rate (DDR) memory identifies discrete minimum and maximum time offset values for test data in selected data bit patterns for the data bit lines. The discrete minimum time offset value is the minimum timing adjustment required to allow the processor to receive the data in a steady-state condition during a data valid window of the strobe clock and the discrete maximum time offset value is a maximum timing adjustment required to allow the processor to receive the data in a steady-state condition during a data valid window of the strobe clock. The discrete minimum and maximum time offset values identify a valid range when the data bit lines supply data in a steady-state condition for latching into the processor by the strobe clock.
摘要翻译: 用于补偿在数据位线上相对于在双数据速率(DDR)存储器中使用的选通时钟线上发送到处理器的选通时钟的数据位线发送的数据的时序变化的方法,该方法能够识别离散的最小和最大值 用于数据位线的选定数据位模式中的测试数据的时间偏移值。 离散的最小时间偏移值是在选通时钟的数据有效窗口期间允许处理器在稳态条件下接收数据所需的最小定时调整,并且离散最大时间偏移值是允许允许的最大定时调整 所述处理器在所述选通时钟的数据有效窗口期间以稳态条件接收所述数据。 当数据位线在稳态条件下提供数据以通过选通时钟锁存到处理器中时,离散的最小和最大时间偏移值标识有效范围。
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