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US 2010/0306633 A1Published application
Parity data encoder for serial communication
AssigneeFreescale Semiconductor, Inc.
InventorYuji Shintomi
Life of this patent
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Abstract
A prepended parity data encoder is loaded with sets of data and constant data, which are used for parity calculation. A shift circuit shifts each of the plural sets of data and the constant data, one bit at a time in parallel. When the constant data is output from the shift circuit, a parity generator dynamically generates prepended parity data based on the constant data and the plural sets of data.
Claims16
An encoder comprising:
- a shift circuit that is loaded with plural sets of data and constant data, which are used for parity calculation, wherein the shift circuit shifts each of the plural sets of data and the constant data one bit at a time in parallel;
- and
- a parity generator that dynamically generates, based on the constant data and the plural sets of data, prepended parity data that is attached to the plural sets of data when the constant data is shifted out of the shift circuit.
An encoder, comprising:
- a data shifter that is loaded with plural sets of data, wherein the data shifter shifts each of the plural sets of data one bit at a time in parallel;
- an extended shifter that is loaded with constant data used for parity calculation, wherein the extended shifter sequentially shifts the constant data and the plural sets of data output from the data shifter, one bit at a time;
- a parity generator that dynamically generates, based on the constant data and the plural sets of data, prepended parity data that is attached to the plural sets of data when the constant data is output from the extended shifter;
- and
- an output selection circuit connected to the parity generator and the extended shifter, wherein the output selection circuit selectively outputs the prepended parity data generated by the parity generator, and the shift data that is output from the extended circuit.
2 more elements
Dependencies are inferred from the claim text.