| 摘要 |
One embodiment of the present invention provides a method for aligning a data signal and a data clock signal received from a memory during a read operation. The method includes receiving the data signal and the data clock signal from the memory, and determining an offset between these signals. If the offset is outside of a valid range, the system adjusts a delay between the data clock signal and the data signal. In a variation on the above embodiment, the method is performed by special-purpose hardware located in a memory controller, and operates periodically while the computer system is running. In another variation, the method is carried out by a BIOS program stored in read only memory, and operates during system startup.
|
