Patent ID: 8188762
Filing Date: 2012-05-29
Classification: G06F,G11C,H03K

Abstract:
1. A method of controlling an integrated circuit device, the method comprising: outputting, to the integrated circuit device, information that specifies storage, in registers of the integrated circuit device, of a plurality of values that set a plurality of controllable termination impedance configurations, the plurality of values including a first value that specifies a first controllable termination impedance configuration and a second value that specifies a second controllable termination impedance configuration; outputting write data onto a data path coupled to data inputs of the integrated circuit device; and outputting, to the integrated circuit device, an indication that the integrated circuit device is to apply one of the plurality of controllable termination impedance configurations at each of the data inputs based on the indication and an internal state of the integrated circuit device, the indication causing the integrated circuit device to apply the first controllable termination impedance configuration at each of the data inputs during a first internal state of the integrated circuit device corresponding to the reception of the write data via the data inputs, and to apply the second controllable termination impedance configuration at each of the data inputs during a second internal state of the integrated circuit device that follows the first internal state.