NAND switch

A method of performing read operation and write operation in a memory system having a controller connected to a plurality of non-volatile storage devices by way of a first switch including a first data input and a plurality of enable outputs, wherein each enable output is connected to an enable input of one of a first set of the non-volatile storage devices and the first data input is connected to a data output of the controller,

• the method comprising:
• asserting a first enable output of the controller, that is coupled to a first enable input of the first switch;
• transmitting, from the controller to the first switch, select data which indicates one of the enable outputs of the first switch connected to an enable input of a first non-volatile storage device among the first set of the non-volatile storage devices;
• enabling a first communication path between the controller and the first non-volatile storage device;
• and
• transmitting, from a first data output of the first switch to a data input of the first non-volatile storage device, a command and an address of the first non-volatile storage device which are received from the controller.

A memory system comprising:

• a controller configured with a first chip enable output and a data output;
• a first switch configured with
• a first chip enable input that is connected to the first chip enable output of the controller,
• a first data input that is connected to the data output of the controller,
• a first data output, and
• multiple chip enable outputs;
• and
• a first set of multiple non-volatile storage devices each configured with
• a chip enable input that is connected to one of the chip enable outputs of the first switch, and
• a data input that is connected to the first data output of the first switch,
• wherein the first switch is configured between the controller and the first set of multiple non-volatile storage devices, and
• wherein in response to the controller asserting the first chip enable output and transmitting select data that indicates one of the chip enable outputs of the first switch connected to the chip enable input of a first non-volatile storage device among the first set of multiple non-volatile storage devices,
• the first switch enables a first communication path between the controller and the first non-volatile storage device, and transmits a command and an address of the first non-volatile storage device which are received from the controller, to a data input of the first non-volatile storage device.