Semiconductor memory device suitable for interconnection in a ring topology

A method, comprising:

• receiving a command latch enable signal, an address latch enable signal and an information signal at a memory device;
• receiving a select signal indicative of whether the memory device has been selected by a controller;
• interpreting the information signal based on the command latch enable signal and the address latch enable signal when the select signal is indicative of the memory device having been selected by the controller;
• and
• transferring the command latch enable signal, the address latch enable signal and the information signal to a neighboring device when the select signal is indicative of the memory device not having been selected by the controller.

A system, comprising:

• a point-to-point ring topology comprising a plurality of semiconductor memory devices;
• and
• a controller for communicating with the devices, said controller comprising:
• a plurality of outputs for providing to a first one of the devices a command latch enable signal, an address latch enable signal and an information signal;
• a plurality of outputs for independently providing a respective select signal to each of the devices;
• control logic configured to select a particular one of the devices and to issue specific information to the particular one of the devices by controlling the command latch enable signal, the address latch enable signal and the information signal provided to the first device;
• and
• wherein the control logic is further configured to convey via the select signal independently provided to the particular one of the devices that the particular one of the devices has been selected while conveying via the select signals independently provided to the other devices that the other devices have not been selected.

A method, comprising:

• providing a command latch enable signal, an address latch enable signal and an information signal to a first device among a plurality of semiconductor memory devices arranged in a point-to-point ring topology;
• independently providing a respective select signal to each of the devices of the topology;
• selecting a particular one of the devices of the topology;
• issuing specific information to the particular one of the devices by controlling the command latch enable signal, the address latch enable signal and the information signal provided to the first device;
• conveying via the select signal independently provided to the particular one of the devices that the particular one of the devices has been selected;
• and
• conveying via the select signals independently provided to the other devices that the other devices have not been selected.