Patent ID: 11868291
Assignee: SIEMENS AKTIENGESELLSCHAFT
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A data transfer system, comprising:
a bus system;
a master unit configured to send messages;
at least one slave unit allocated to the master unit and connected to the bus system, and configured to send interrupt requests directed to the master unit via an interrupt request line;
a monitor unit designed as a hardware component and connected between the master unit and the bus system and connected to the interrupt request line of each slave unit allocated to the master unit, and configured:
to receive the messages sent from the master unit and the interrupt requests sent via the interrupt request line from each slave unit allocated to the master unit, and
to not forward to the bus system polling messages directed from the master unit to an allocated slave unit, and to prevent the polling messages from being periodically sent from the master unit via the bus system to the at least one allocated slave unit, until the at least one slave unit sends an interrupt request via the interrupt request line.