| 摘要 |
<p>The module has a state module (ME) controlling activation and deactivation of a set of modules and a high speed communication bus (COM1), and operation of the security module. The module (ME) controls the bus, an encryption/decryption unit (ENC1) and a memory (MEM1). The module (ME) transmits a command to a communication module (COM0), where the command acts on signals transmitted or received by using a blocking element e.g. tri-state circuit. The module (ME) controls the set of modules, and/or functionalities which are allowed or prohibited according to a state of the state module.</p> |
