Multi-port memory device with serial input/output interface

Abstract

A multi-port memory device includes a plurality of serial I / O data pads for providing a serial input / output (I / O) data communication; a plurality of ports for performing the serial I / O data communication with external devices through the serial I / O data pads; a plurality of banks for performing a parallel I / O data communication with the ports; a plurality of first data buses for transferring first signals from the ports to the banks; a plurality of second data buses for transferring second signals from the banks to the ports; and a switching unit for connecting the first data buses with the second data buses in response to a control signal.

Description

technical field [0001] The present invention relates to a multi-port memory device, and more specifically, to a serial input / output having a failure of a port for detecting switching parallel / serial data regardless of a failure of a memory bank having a core ( I / O) interface multi-port memory device. Background technique [0002] Typically, multiple memory devices, including random access memory (RAM), have a single port with multiple input / output pin sets. That is, a single port is provided for data exchange between the memory device and an external chipset. The memory device with a single port uses a parallel input / output (I / O) interface to simultaneously transfer multiple bits of data through signal lines connected to a plurality of I / O pins. The memory device exchanges data with external devices through multiple parallel I / O pins. [0003] The I / O interface is an electronic and mechanical mechanism for connecting components with different functions through signal line...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to determine whether the failure is in the port or in the bank with the DRAM core

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