Patent ID: 9423864
Filing Date: 2016-08-23
CPC Classification: G06F,Y02D

Claim Text:
1. A PCI express link energy management method, comprising: obtaining, by a first device, adjustment information for performing adjustment processing on a current rate and/or bit width of a PCI express link; stopping, by the first device, data sending, and clearing, by the first device, a master enable bit of a configuration space command register of a second device at an opposite end of the link, so that the second device stops data sending after current data sending is finished; performing, by the first device, adjustment processing on the rate and/or bit width of the link according to the adjustment information; and resuming, by the first device, the data sending, and resetting the master enable bit, so that the first device and the second device send and receive data again at a rate and/or bit width that is obtained after the adjustment processing.