Verarbeitung langer Nachrichten in einer Prozessorkarte

摘要

A message received by a processor card (10) is written by a processor unit (30) into a writable, non-volatile memory (60), such as an EEPROM (60) and stored therein before its right of access to the processor card (10) is checked by the processor unit (30). As the storage locations in the writable, non-volatile memory (60) have a freely definable data size, within the limits of the total data size of the writable, non-volatile memory (60), messages containing data of whatever length may be checked for right of access and processed. Messages received from the outside by the processor card (10) may be either directly or indirectly stored in the non-volatile memory (60), for example after being first stored in the writable, volatile buffer memory (40) and if required pre-processed. Pre-processing may for example consist in determining the address of the storage location in which the message should be processed. Since the right of access for writing into the writable, non volatile memory (60) must first be checked before the message is further processed, storage in the writable, non-volatile memory (60) is a temporary storage and its final memory location is not yet determined. The invention is useful for communications by means of processor cards. For a device of whatever type to communicate with a processor card, the device sends a message to the processor card, the message is received by the processor card (10) and processed according to the disclosed process.