Method for coupling segments of a bus system
First Claim
1. A method for coupling segments of a bus system having data and control lines by transmission of bit packets with a predetermined number of bits per packets, which number is less than a sum of the data and control lines, comprising the steps of:
- providing an indicator in the bit packets to distinguish between data packets and control packets, data packets transmitting a status of the data lines and control packets transmitting a status of control lines;
forming a bus status from status changes of the status lines;
providing in the control packets an indicator which selects one of at least first and second transmission modes;
in a first transmission mode, receiving data packets and influencing with the received data packets only data lines;
in a second transmission mode, receiving data packets and influencing control lines, which are defined by the respective bus status, and also influencing the data lines.
2 Assignments
0 Petitions
Accused Products
Abstract
The method is for coupling segments of a bus system having data and control lines by transmission of bit packets with a predetermined number of bits per packet, which number is less than the sum of the data and control lines. The bit packets contain an indicator to distinguish between data packets and control packets, data packets transmitting the status of the data lines and control packets transmitting the status of control lines. A bus status is formed from the status changes of the status lines. The control packets contain an indicator which selects one of at least two transmission modes in a first transmission mode, the reception of data packets influencing only data lines, and in a second transmission mode, the reception of data packets also influencing control lines, which are defined by the respective bus status, in addition to the data lines.
62 Citations
10 Claims
-
1. A method for coupling segments of a bus system having data and control lines by transmission of bit packets with a predetermined number of bits per packets, which number is less than a sum of the data and control lines, comprising the steps of:
-
providing an indicator in the bit packets to distinguish between data packets and control packets, data packets transmitting a status of the data lines and control packets transmitting a status of control lines; forming a bus status from status changes of the status lines; providing in the control packets an indicator which selects one of at least first and second transmission modes; in a first transmission mode, receiving data packets and influencing with the received data packets only data lines; in a second transmission mode, receiving data packets and influencing control lines, which are defined by the respective bus status, and also influencing the data lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification