公开(公告)号：US20250028654A1

公开(公告)日：2025-01-23

申请号：US18625332

申请日：2024-04-03

Applicant: Microchip Technology Incorporated

Inventor： Avinash Halageri ,  Preetham Rajashekaraiah Premaleela ,  Swathi G. Bhat

IPC: G06F13/10 ,  H03K17/687

Abstract: A circuit may enable communication between a primary device and one or more secondary devices. The communication may utilize a Universal Asynchronous Receiver Transmitter (UART) protocol. In operation, the primary device may require information on the baud rate of the secondary device. The UART may operate in an inverted polarity mode, and this inverted polarity may be interpreted by the secondary device as a request to enter an auto-baud detection mode. Using the inverted polarity mode to enter the auto-baud detection mode may prevent excessive delays in the UART communication and may prevent the need for additional pins to implement the auto-baud detection mode.