| 摘要 |
A circuit module is disclosed. The circuit module has a ground connection, a power connection, a shunt regulator coupled to the power connection and to the ground connection, a current measuring circuit that measures a current flowing between the power connection and the ground connection, one or more communication connections, and a digital logic circuit coupled to the one or more communication connections to send and receive communications. The digital logic circuit responds to communications addressed to a communication address with the communication address based on the current measured by the current measuring circuit. Other systems are disclosed. |
