RXLOS deglitch apparatus and method
AssigneeFaraday Technology Corp.
InventorsYuan-Min Hu, Jhen-Yu Hou
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Abstract
A RXLOS deglitch apparatus for a receiver is provided. The RXLOS deglitch apparatus includes a sampler, an edge detecting unit and a finite state machine. The sampler receives a recovered clock, and samples a RXLOS signal according to the recovered clock. Consequently, a sampled RXLOS signal is generated. The edge detecting unit receives the RXLOS signal. When a logic level of the RXLOS signal is changed, an edge detection signal is activated by the edge detecting unit. The finite state machine receives the edge detection signal and the sampled RXLOS signal, generates an edge rest signal to control the edge detecting unit, and outputs a filtered RXLOS signal.
Claims12
A RXLOS deglitch apparatus for a receiver, the RXLOS deglitch apparatus comprising:
- a sampler receiving a recovered clock, and sampling a RXLOS signal according to the recovered clock, thereby generating a sampled RXLOS signal;
- an edge detecting unit receiving the RXLOS signal, wherein the edge detecting unit includes at least one D flip-flop having a signal input terminal receiving a first logic level and a clock terminal receiving the RXLOS signal or an inverted RXLOS signal, and when a logic level of the RXLOS signal is changed, an edge detection signal is activated by the edge detecting unit;
- and
- a finite state machine receiving the edge detection signal and the sampled RXLOS signal, generating an edge rest signal to control the edge detecting unit, and outputting a filtered RXLOS signal.
Dependencies are inferred from the claim text.