Patent ID: 8904087

Claim:
A portable memory medium comprising: a memory area, and a memory management system for managing the memory area, wherein the memory area comprises at least a first partial memory area and a second partial memory area, wherein the portable memory medium has at least a first memory configuration and a second memory configuration that are adapted to be selectively activated, wherein the portable memory medium is adapted to receive external commands from a terminal device that is external to the portable memory medium, the external commands including at least one access command for accessing the memory area and at least one configuration command for activating one of the first memory configuration or the second memory configuration, wherein the portable memory medium is adapted to direct the at least one access command (i) to the first partial memory area if the first memory configuration is activated, and (ii) to the second partial memory area if the second memory configuration is activated, wherein the at least one configuration command received by the portable memory medium comprises a command type part, an argument part, and a data part, and wherein the portable memory medium is configured for processing the at least one configuration command by operations including a determination whether to activate the first memory configuration or the second memory configuration, the determination depending at least partially on information contained in the data part of the at least one configuration command.