Invention Grant
US07924637B2 Method for training dynamic random access memory (DRAM) controller timing delays
有权
用于训练动态随机存取存储器(DRAM)控制器定时延迟的方法
- Patent Title: Method for training dynamic random access memory (DRAM) controller timing delays
- Patent Title (中): 用于训练动态随机存取存储器(DRAM)控制器定时延迟的方法
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Application No.: US12059653Application Date: 2008-03-31
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Publication No.: US07924637B2Publication Date: 2011-04-12
- Inventor: Shawn Searles , Tahsin Askar , Thomas H. Hamilton , Oswin Housty
- Applicant: Shawn Searles , Tahsin Askar , Thomas H. Hamilton , Oswin Housty
- Applicant Address: US CA Sunnyvale
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Sunnyvale
- Main IPC: G11C7/00
- IPC: G11C7/00

Abstract:
Timing delays in a double data rate (DDR) dynamic random access memory (DRAM) controller (114, 116) are trained. A left edge of passing receive enable delay values is determined (530). A final value of a receive data strobe delay value and a final value of a transmit data delay value are trained (540). A right edge of passing receive enable delay values is determined using a working value of the receive data strobe delay (550); and a final receive enable delay value intermediate between the left edge of passing receive enable delay values and the right edge of passing receive enable delay values is set (560).
Public/Granted literature
- US20090244997A1 Method for Training Dynamic Random Access Memory (DRAM) Controller Timing Delays Public/Granted day:2009-10-01
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