Memory System with Point-to-Point Request Interconnect

A calibration method for a memory device that includes a request interface, a bidirectional interface, and addressable memory, the method comprising:

• generating first test patterns on the memory device;
• transmitting the first test patterns over the bidirectional interface;
• receiving second test patterns via the request interface;
• and
• transmitting the received second test patterns over the bidirectional interface.

A method performed by a memory device having a request interface, a data interface, and a memory, the method comprising:

• in a loop-back mode, receiving test signals via the request interface, conveying the test signals to the data interface, and transmitting the test signals from the data interface;
• storing data in the memory;
• and
• in an operational mode, receiving request signals representing read requests on the request interface, reading the data from the memory responsive to the read requests, and transmitting the data over the data interface.