Invention Grant
- Patent Title: Apparatus and method for interfacing to a memory
- Patent Title (中): 用于连接到存储器的装置和方法
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Application No.: US11536709Application Date: 2006-09-29
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Publication No.: US07661010B2Publication Date: 2010-02-09
- Inventor: Jody DeFazio , Oswald Becca , Peter Nyasulu
- Applicant: Jody DeFazio , Oswald Becca , Peter Nyasulu
- Applicant Address: CA Ottawa
- Assignee: Mosaid Technologies Incorporated
- Current Assignee: Mosaid Technologies Incorporated
- Current Assignee Address: CA Ottawa
- Agency: Eaton Peabody Patent Group, LLC
- Agent Dennis R. Haszko
- Main IPC: G06F1/00
- IPC: G06F1/00

Abstract:
A delay locked loop (DLL) is added to the system in order to provide an accurate, PVT insensitive translation of the drive clocks into the write data eye. Adding a master-slave DLL to the system provides an accurate, PVT insensitive translation of the echo clocks into the read data eye. Solidifying the timing critical drive and receive logic which directly interfaces to the I/O buffers reduces the pin-to-pin skews. Utilizing clock phase outputs of the DLL in the solidified drive and receive logic blocks reduces further the skew between the clock and related data signals, and also removes the reliance on a differential clock. The system allows a much more relaxed constraint on clock duty cycle. Design of circuitry within the solidified drive and receive logic blocks permits simple logic modeling for fit within an ASIC flow. Physical design of the solidified drive and receive logic blocks permits simple fit within ASIC place and route flows for increased ease of implementation and ease of reuse.
Public/Granted literature
- US20070283182A1 APPARATUS AND METHOD FOR INTERFACING TO A MEMORY Public/Granted day:2007-12-06
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