Patent ID: 6618784
Filing Date: 2003-09-09
Classification: G06F

Abstract:
A universal memory card for providing a system memory to a host system, the universal memory card comprising:an on-card system memory, said on-card system memory comprising: a first memory device for storing system data; a definition device for storing identification data describing the device composition of said on-card system memory; and a single memory bus directly coupled between the system memory and the host system comprising: a primary channel for communicating said system data from said first memory device to said host system; an identification channel for communicating said identification data from said definition device to said host system; and a programming channel for providing programming access to said first memory device and to said definition device; the programming channel further comprising one or more dual function sub-channel lines configured to communicate a programming signal to said first, memory device when said directly coupled memory bus operates in a programming mode and to communicate a data transfer signal to said first memory device when said directly coupled memory bus operates in a data transfer mode.