System and method for multiple backplane time synchronization
AssigneeDell Products L.P.
InventorsIndrani Paul, Timothy M. Lambert
Life of this patent
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Abstract
A system and method for synchronizing multiple backplanes within an information handling system are disclosed. An information handling system includes a first controller that may be operable to generate a time command at a predetermined time interval. A backplane including a second controller is communicatively coupled to the first controller. The second controller may be operable to receive the time command from the first controller and calculate a skew for the time command based at least on a location of the backplane. The second controller may further be operable to adjust a time domain of the backplane based on the calculated skew for the time command to synchronize the backplane.
Claims17
An information handling system configured to provide time synchronization in a backplane, the information handling system comprising:
- a controller configured to generate a time command at a predetermined time interval;
- a multiplexer communicatively coupled to the controller;
- and
- a backplane communicatively coupled to the controller, the backplane including a backplane controller configured to:
- receive the time command from the controller;
- calculate a skew for the time command based at least on a location of the backplane and a delay caused by a multiplexer, the multiplexer communicatively coupled between the backplane and the controller;
- and
- adjust a time domain for the backplane based on the skew for the time command.
A backplane comprising a controller including:
- a processor;
- a memory communicatively coupled to the processor;
- and
- processing instructions encoded in the memory, the processing instructions, when executed by the processor, operable to perform operations comprising:
- receiving a time command;
- calculating a skew for the time command based at least on a location of the backplane and a transmittal delay caused by a multiplexer communicatively coupled between the backplane and the controller;
- and
- adjusting a time domain for the backplane based on the calculated skew for the time command to synchronize the backplane.
A method for providing time synchronization in a backplane, the method comprising:
- receiving a time command from a controller at a backplane controller, the backplane controller associated with a backplane;
- calculating a skew for the time command based at least on a location of the backplane and a transmittal delay caused by a multiplexer communicatively coupled between the controller and the backplane;
- and
- adjusting a time domain for the backplane based on the calculated skew for the time command to synchronize the backplane.
Dependencies are inferred from the claim text.