公开(公告)号：US20230216705A1

公开(公告)日：2023-07-06

申请号：US17567056

申请日：2021-12-31

Applicant: NXP B.V.

Inventor： Lucas Pieter Lodewijk van Dijk ,  Adrien Manfred Schoof

IPC: H04L12/40 ,  H04L1/00

CPC classification number: H04L12/40013 ,  H04L12/40026 ,  H04L12/40052 ,  H04L1/0041 ,  H04L1/0045 ,  H04L2012/40215

Abstract: A Controller Area Network (CAN) system, method, and circuit are provided with a dual mode bus line termination circuit connected between signal lines of a serial bus and optimized for both differential and single-ended communication modes over the serial bus, where the dual mode bus line termination circuit includes first and second resistance termination paths connected in parallel between first and second bus wires of the serial bus to provide an odd mode termination impedance (RODD) that matches an impedance of the serial bus when operating in the differential communication mode, and to also provide an even mode termination impedance (REVEN) that matches an impedance of the serial bus when operating in the single-ended communication mode.

公开(公告)号：US11870603B2

公开(公告)日：2024-01-09

申请号：US17567056

申请日：2021-12-31

Applicant: NXP B.V.

Inventor： Lucas Pieter Lodewijk van Dijk ,  Adrien Manfred Schoof

IPC: H04L12/40 ,  H04L1/00

CPC classification number: H04L12/40013 ,  H04L1/0041 ,  H04L1/0045 ,  H04L12/40026 ,  H04L12/40052 ,  H04L2012/40215

Abstract: A Controller Area Network (CAN) system, method, and circuit are provided with a dual mode bus line termination circuit connected between signal lines of a serial bus and optimized for both differential and single-ended communication modes over the serial bus, where the dual mode bus line termination circuit includes first and second resistance termination paths connected in parallel between first and second bus wires of the serial bus to provide an odd mode termination impedance (RODD) that matches an impedance of the serial bus when operating in the differential communication mode, and to also provide an even mode termination impedance (REVEN) that matches an impedance of the serial bus when operating in the single-ended communication mode.