Repetitive IO Structure in a Phy for Supporting C-Phy Compatible Standard and/or D-Phy Compatible Standard

Patent metadata

Field	Value
Publication number	US-2018241382-A1
Application number	US-201715616937-A
Country	US
Kind code	A1
Filing date	Jun 8, 2017
Priority date	Feb 21, 2017
Publication date	Aug 23, 2018
Grant date	—

Abstract

A circuit in a physical unit (PHY) is disclosed, the circuit comprising two trios and a combo wire therebetween, wherein each of said trios includes three wires, and wherein said combo wire is configurable as a signal, floating, or any dc voltage, furthermore, a Quad-IO block is designed for transmit data in two D-PHY lanes with the combo wire configured as a signal wire or a C-PHY trio with the combo wire configured as a shielding wire, such that the same Quad-IO block can be instantiated multiple times in a physical unit for meeting different bandwidth requirements as well as for placing pads along a same direction for preventing performance difference between D-PHY lanes or C-PHY trios.

First claim

What is claimed is:

1 . A circuit in a physical unit (PHY) comprising two trios and a shielding wire, wherein each of said trios includes three signal wires for transmitting signals, and said shielding wire is between said two trios for reducing a signal interference between said two trios.

2 . The circuit of the claim 1 , wherein said circuit comprises at least two Quad-IO blocks, wherein a first Quad-IO block comprises a first trio and a first shielding wire, and a second Quad-IO block comprises a second trio and a second shielding wire, the first shielding wire being between the first trio and the second trio for reducing the signal interference between said two trios.

3 . The circuit of the claim 2 , wherein each of the first shielding wire and the second shielding wire is capable of being configured as floating or at any dc voltage.

4 . The circuit of the claim 2 , wherein said at least two Quad-IO blocks are arranged side by side so as to form a repetitive structure of staggered bond pads, wherein each of said wires is electrically coupled to a corresponding pad of the repetitive structure of staggered bond pads.

5 . The circuit of the claim 2 , wherein said at least two Quad-IO blocks are arranged side by side so as to form a repetitive structure of in-line pads, wherein each of said wires is electrically coupled to a corresponding pad of the repetitive structure of in-line pads.

6 . The circuit of the claim 2 , wherein each of said at least two Quad-IO blocks is operatable under a dedicated LDO power domain so as to prevent a power interference.

7 . The circuit of the claim 2 , wherein the circuit is compliant with C-PHY.

8 . The circuit of the claim 2 , wherein for each of said three signal wires in a Quad-IO block, said Quad-IO block is located at a corresponding transmitter comprising a pre-driver and a driver for transmitting data to the signal wire.

9 . The circuit of the claim 2 , wherein for each of said three signal wires in a Quad-IO block, said Quad-IO block is located at a corresponding receiver for receiving data from the signal wire.

10 . The circuit of the claim 2 , wherein for each of the said signal wires in a Quad-IO block, said Quad-IO block is located at a corresponding transmitter for transmitting data to the signal wire and a corresponding receiver for receiving data from the signal wire.

11 . A circuit in a physical unit (PHY) comprising two trios and a combo wire therebetween, wherein each of said trios includes three signal wires for transmitting signals, and wherein said combo wire is configurable as a signal wire for transmitting a corresponding signal when the circuit is operating in a first mode or as a shielding wire for reducing a signal interference between said two trios when the circuit is operating in a second mode.

12 . The circuit of the claim 11 , wherein said circuit comprises at least two Quad-IO blocks, wherein a first Quad-IO block comprises a first trio and a first combo wire, and a second Quad-IO block comprises a second trio and a second combo wire, the first combo wire being between the first trio and the second trio.

13 . The circuit of the claim 11 , wherein when said combo wire is configured as the shielding wire in the second mode, said shielding wire is capable of being configured as floating or at any dc voltage for reducing the signal interference between said two trios.

14 . The circuit of the claim 11 wherein the first mode is D-PHY and the second mode is C-PHY.

15 . The circuit of the claim 12 , wherein each of said at least two Quad-IO blocks is operatable under a dedicated LDO power domain so as to prevent a power interference.

16 . The circuit of the claim 12 , wherein each Quad-IO block includes 2 differential pairs suitable or adaptable in one of said two modes.

17 . The circuit of the claim 12 , wherein said at least two Quad-IO blocks are arranged side by side so as to form a repetitive structure of staggered bond pads, wherein each of said wires is electrically coupled to a corresponding pad of the repetitive structure of staggered bond pads.

18 . The circuit of the claim 12 , wherein said at least two Quad-IO blocks are arranged side by side so as to form a repetitive structure of in-line pads, wherein each of said wires is electrically coupled to a corresponding pad of the repetitive structure of in-line pads.

19 . The circuit of the claim 12 , wherein for each of said thee signal wires in a Quad-IO block, said Quad-IO block is located at a corresponding transmitter comprising a pre-driver and a driver for transmitting data to the signal wire.

20 . The circuit of the claim 12 , wherein for each of said thee signal wires in a Quad-IO block, said Quad-IO block is located at a corresponding receiver for receiving data from the signal wire.

Assignees

• M31 Tech Corp

Inventors

• Wang Huai-Te
• Hung Chih Chien

Classifications

• G06F13/4027

  using bus bridges (G06F13/4022 takes precedence) · CPC title

• H01B11/00

  Communication cables or conductors · CPC title

• H03K5/1252 Primary

  Suppression or limitation of noise or interference (specially adapted for transmission systems H04B15/00, H04L25/08) · CPC title

• H04B3/02 Primary

  Details · CPC title

• H04L25/0272

  Arrangements for coupling to multiple lines, e.g. for differential transmission · CPC title