Patent ID: 11948623
Assignee: LONGITUDE LICENSING LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 0:
1. A method for controlling a plurality of memory devices comprising:
supplying a first command in common to the plurality of memory devices to enable a PDA function; and
supplying a second command in common to the plurality of memory devices to overwrite a first mode register in a first memory device of the plurality of memory devices;
wherein a contents of the first mode register in the first memory device of the plurality of memory devices are overwritten with information supplied with the second command when a first data signal provided to the first memory device has a first logic level, and the contents of a first mode register in a second memory device of the plurality of memory devices are not overwritten with the information supplied with the second command when a second data signal provided to the second memory device has a second logic level opposite the first logic level.