Bus System Expandability via Arbitration Segmentation

The patent segments the slave device selection process by dividing slave devices into different groups based on their connection to the chip select signal line. First slave devices are connected to a first chip select signal line while second slave devices are connected to a second chip select signal line, allowing independent selection and communication with each group through their respective signal lines.

The patent introduces an intermediary mechanism through the arbitration unit that manages the selection between first and second slave devices. The arbitration unit receives selection signals and determines which slave device group should be accessed, enabling the master device to communicate with multiple slave devices through a structured intermediary layer rather than direct one-to-one connections.

The patent divides the slave devices into distinct groups (first slave devices and second slave devices) that are connected to different chip select signal lines. This segmentation allows each group to be managed independently through its own signal line, reducing the complexity that would arise from managing all slave devices through a single signal line.

The patent adds a dimensional layer to the communication architecture by introducing multiple chip select signal lines (first and second signal lines) instead of using a single signal line. This dimensional expansion allows parallel management of different slave device groups, simplifying the overall communication structure while enabling greater expandability.