Programmable logic device with high speed serial interface circuitry
AssigneeAltera Corporation
InventorsChong H. Lee, Reza Asayesh
Life of this patent
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Abstract
A programmable logic device (“PLD”) includes high speed serial interface (“HSSI”) circuitry that can support several high speed serial (“HSS”) standards. Examples of the standards that can be supported are XAUI, InfiniBand, 1G Ethernet, FibreChannel, and Serial RapidIO. The HSSI circuitry may be partly programmable to support these various standards. In some cases control may come from the associated PLD core circuitry. Also in some cases some of the interface functions may be performed in the PLD core circuitry.
Claims26
A programmable logic device containing a clock data recovery block coupled to a character alignment block, coupled to a decoder block, coupled to a rate matching block, coupled to a channel alignment block, wherein each block after the clock data recovery block can be selectively bypassed.
A programmable logic device containing transceiver circuitry including a character alignment block, a decoder block, a rate matching block, and a channel alignment block, wherein the transceiver circuitry can be programmed to pass an incoming signal through none of the blocks, all of the blocks, or any subset of the blocks, provided that if the signal is passed through the decoder block, it also passes through the character alignment block.
Dependencies are inferred from the claim text.