| 摘要 |
<p>PURPOSE:To prevent the leakage of secret information such as a password by connecting a transmission serial clock generating circuit and a reception serial clock generating circuit to a transmission circuit and a reception circuit respectively. CONSTITUTION:The communication equipment consists of a transmission circuit 1, a reception circuit 2, a transmission serial clock generating circuit 3 connecting to the transmission circuit 1, a reception serial clock generating circuit 4 connecting to the reception circuit 2 and a bus 5, a transmission use reference clock input terminal TXCK, a reception reference clock input terminal RXCK, a transmission data output terminal TXD and a reception data input terminal RXD. Since the communication is implemented by using a serial clock of a communication format understood by the sender side and the receiver side only, even when the other 3rd party connects the communication equipment to the data line, the content of the communication data cannot be read. Thus, the leakage of secret information such as a password is prevented.</p> |
