Apparatus and method to perform data exchange on host

The invention relates to a device and a method for performing data exchange on a host. An example host includes a data mapping decoder configured to decode a rearrangement mapping signal received from a memory module to provide a data mapping setting; a data input/output circuit configured to receive a plurality of data bits from the memory module via a data bus; and a data adjustment circuit configured to rearrange an order of the plurality of data bits based on the data mapping setting to provide a plurality of adjusted data bits. 本申请涉及用以在主机上执行数据交换的设备和方法。示例性主机包含：数据映射解码器，其经配置以对从存储器模块接收的重排映射信号进行解码以提供数据映射设置；数据输入/输出电路，其经配置以经由数据总线从所述存储器模块接收多个数据位；及数据调整电路，其经配置以基于所述数据映射设置来重新布置所述多个数据位的次序以提供多个经调整数据位。