DQS postamble filtering
Circuits, methods, and apparatus for filtering signals at a high-speed data interface. One exemplary embodiment is particularly configured to filter a clock signal at the end of a data burst received by a double-data rate memory interface. A clock input port is either connected or disconnected to an...
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Format | Patent |
Language | English |
Published |
29.01.2008
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Abstract | Circuits, methods, and apparatus for filtering signals at a high-speed data interface. One exemplary embodiment is particularly configured to filter a clock signal at the end of a data burst received by a double-data rate memory interface. A clock input port is either connected or disconnected to an input cell. When a data burst is to be received, the clock input port is connected to the input cell. When the data burst concludes, the clock input port is disconnected from the input cell. In a specific embodiment, a signal is received indicating that a data burst is about to begin and the clock input port is connected to the input cell. The signal later changes state indicating that the last data bit is being received. When the last clock edge corresponding to the last data bit is received, the clock input port is disconnected from the input cell. |
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AbstractList | Circuits, methods, and apparatus for filtering signals at a high-speed data interface. One exemplary embodiment is particularly configured to filter a clock signal at the end of a data burst received by a double-data rate memory interface. A clock input port is either connected or disconnected to an input cell. When a data burst is to be received, the clock input port is connected to the input cell. When the data burst concludes, the clock input port is disconnected from the input cell. In a specific embodiment, a signal is received indicating that a data burst is about to begin and the clock input port is connected to the input cell. The signal later changes state indicating that the last data bit is being received. When the last clock edge corresponding to the last data bit is received, the clock input port is disconnected from the input cell. |
Author | WANG BONNIE I HUANG JOSEPH CHONG YAN SUNG CHIAKANG CHARAGULLA SANJAY K |
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Snippet | Circuits, methods, and apparatus for filtering signals at a high-speed data interface. One exemplary embodiment is particularly configured to filter a clock... |
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SubjectTerms | BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING DECODING ELECTRICITY INFORMATION STORAGE PHYSICS PULSE TECHNIQUE STATIC STORES |
Title | DQS postamble filtering |
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