Physical layer device having an analog serdes pass through mode
First Claim
1. A physical layer device (PLD), comprising:
- a first serializer-deserializer (SERDES) device including (i) a first analog portion having a first serial port, and (ii) a first digital portion coupled to said first analog portion and having a first parallel port;
a second SERDES device including (i) a second analog portion having a second serial port, and (ii) a second digital portion coupled to said second analog portion having a second parallel port; and
a signal path that directly connects said first serial port to said second serial port, bypassing said first digital portion and said second digital portion.
6 Assignments
0 Petitions
Accused Products
Abstract
A physical layer device (PLD) includes a first serializer-deserializer (SERDES) device and a second SERDES device. Each SERDES device includes an analog portion with a serial port that is configured to communicate serial data with various network devices, and a digital portion that is configured to communicate parallel data with other various network devices. The PLD includes a first signal path that is configured to route serial data signals between the analog portions of the SERDES devices, bypassing the digital portions of the SERDES devices. Therefore, the SERDES devices can directly communicate serial data without performing parallel data conversion. A second signal path is configured to route recovered clock and data signals between the analog portions of the SERDES devices, but still bypassing the digital portions of the SERDES devices. The recovered clock and data signals are then regenerated before being transmitted over a network device. Signal latency and hardware requirements are reduced by bypassing the digital portions of the SERDES devices and avoiding the parallel conversion associated with the digital portions.
18 Citations
30 Claims
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1. A physical layer device (PLD), comprising:
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a first serializer-deserializer (SERDES) device including (i) a first analog portion having a first serial port, and (ii) a first digital portion coupled to said first analog portion and having a first parallel port;
a second SERDES device including (i) a second analog portion having a second serial port, and (ii) a second digital portion coupled to said second analog portion having a second parallel port; and
a signal path that directly connects said first serial port to said second serial port, bypassing said first digital portion and said second digital portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. On a substrate having a first SERDES device and a second SERDES device, each SERDES device having an analog portion and a digital portion, a method comprising:
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receiving serial data from a first network device at a first analog portion of said first SERDES device; and
routing said serial data from said first analog portion of said first SERDES device to a second analog portion of said second SERDES device, and bypassing respective digital portions of said first and second SERDES devices. - View Dependent Claims (23, 24, 25)
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26. A data communications device, comprising:
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a first serializer-deserializer (SERDES) device including a first analog portion, and a first digital portion coupled to said first analog portion;
a second SERDES device including a second analog portion and a second digital portion coupled to said second analog portion; and
a signal path configure to route serial data signals between said first analog portion and said second analog portion, bypassing said digital portions of said first and second SERDES devices. - View Dependent Claims (27, 28, 29, 30)
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Specification