Physical layer circuitry for multi-wire interface
AssigneeM31 Technology Corporation
InventorsChing-Hsiang Chang, Yuan-Hsun Chang, Yueh-Chuan Lu, Huai-Te Wang
Life of this patent
Estimating the term…
Abstract
A physical layer circuitry (PHY) includes: N signal pads, a four-signal physical medium attachment sublayer (PMA) and M shielding pads. The N signal pads include at least four signal pads. The four-signal PMA is coupled to the four signal pads. The M shielding pads include at least one first shielding pad that is coupled to the four-signal PMA. Additionally, the first shielding pin is located between a second signal pad of the four signal pads and a third signal pad of the four signal pads; and M and N are positive integers.
Claims6
A physical layer circuitry (PHY), comprising:
- N signal pads including at least four signal pads;
- a four-signal physical medium attachment sublayer (PMA) coupled to the four signal pads;
- and
- M shielding pads including at least one first shielding pad that is coupled to the four-signal PMA;
- wherein the first shielding pad is located between a second signal pad of the four signal pads and a third signal pad of the four signal pads;
- and M and N are positive integers.
A physical layer circuitry (PHY), comprising:
- N signal pads including at least six signal pads;
- a six-signal physical medium attachment sublayer (PMA) coupled to the six signal pads;
- and
- M shielding pads including at least at least a first shielding pad, a second shielding pad and a third shielding pad that are coupled to the six-signal PMA;
- wherein the first shielding pad is located between a second signal pad and a third signal pad of the six signal pads;
- the second shielding pad is located between the third signal pad and a fourth signal pad of the six signal pads;
- the third shielding pad is located between the fourth signal pad and a fifth signal pad of the six signal pads;
- M and N are positive integers.
A physical layer circuitry (PHY), comprising:
- N signal pads including at least four signal pads;
- a four-signal physical medium attachment sublayer (PMA) coupled to the four signal pads, comprising:
- a four-signal termination circuit coupled to the four signal pads, comprising:
- four adjustable resistive elements, each coupled to one of the four signal pads respectively;
- a conducted wire coupled between a terminal of a first adjustable resistive element and a terminal of a second adjustable resistive element;
- a first switch selectively coupled between a terminal of the second adjustable resistive element and a terminal of a third adjustable resistive element;
- and
- a second switch selectively coupled between the terminal of the third termination resistive element and a terminal of a fourth termination resistive element;
- wherein the first switch is controlled by a switch control signal and the second switch is control by an inverted version of the switch control signal.
A physical layer circuitry (PHY), comprising:
- N signal pads including at least six signal pads;
- a six-signal physical medium attachment sublayer (PMA) coupled to the six signal pads, comprising:
- a six-signal termination circuit coupled to the six signal pads, comprising:
- six adjustable resistive elements, each coupled to one of the six signal pads respectively;
- a first conducted wire coupled between a terminal of a first adjustable resistive element and a terminal of a second adjustable resistive element;
- a second conducted wire coupled between a terminal of a fifth adjustable resistive element and a terminal of a sixth adjustable resistive element;
- a first switch selectively coupled between the terminal of the second adjustable resistive element and a terminal of a third adjustable resistive element;
- a second switch selectively coupled between the terminal of the third adjustable resistive element and a terminal of a fourth adjustable resistive element;
- and
- a third switch selectively coupled between the terminal of the fourth adjustable resistive element and the terminal of the fifth adjustable resistive element;
- wherein the first switch and the third switch are controlled by a switch control signal and the second switch is controlled by an inverted version of the switch control signal.
Dependencies are inferred from the claim text.