Patent ID: 7519766

Claim:
A method for transmission of control information for the adjustment of operating parameters of drivers in the data interface of a memory module by means of a controller which has instruction and address connections, comprising: sending data bits, in a write mode, at a given data clock rate via a data channel to corresponding connections of the data interface of the memory module; receiving data bits, in a read mode, which have been sent from the data interface of the memory module via the data channel; and sending control bits for adjustment of the drivers during an adjustment mode by the controller as a burst of data bits at a predetermined data clock rate via the data channel to the memory module, wherein each control bit which is sent via the data channel is represented by a sequence of n≧2 data bits, which have a binary value corresponding to the respective control bit and follow one another at the given data clock rate, and wherein the binary value of each control bit sent via the data channel is determined in the memory module by detection of the binary value within the respective sequence at a time at which the m-th data bit in the sequence appears, where m>1.