公开(公告)号：US09306605B1

公开(公告)日：2016-04-05

申请号：US14596026

申请日：2015-01-13

Applicant: STMicroelectronics International N.V.

Inventor： Roland Van Der Tuijn ,  Yoann Bouvet

IPC: H04B1/38 ,  H04B1/04 ,  H04B1/10

CPC classification number: H04B1/38 ,  H04B15/00

Abstract: An electronic device includes a radio configured to operate at an operating frequency, and a first universal asynchronous receiver/transmitter (UART) configured to operate as a master and at a baud rate. The electronic device also includes a second UART configured to communicate with the first UART, operating as a slave. The second UART has a controller configured to generate a frequency shift based upon the operating frequency of the radio being evenly divisible by the baud rate, and a baud clock generator. The baud clock generator is configured to generate an operating baud rate from a master clock signal, with the operating baud rate to be the baud rate shifted by the frequency shift. Transmitter circuitry is configured to operate based on the operating baud rate, and receiver circuitry is configured to operate based on the operating baud rate.

Abstract translation: 电子设备包括被配置为以工作频率工作的无线电设备和被配置为作为主设备以波特率操作的第一通用异步接收器/发射器（UART）。 电子设备还包括被配置为与作为从设备操作的第一UART进行通信的第二UART。 第二UART具有控制器，该控制器被配置为基于可被波特率均匀分割的无线电的工作频率和波特率时钟发生器产生频移。 波特率时钟发生器配置为从主时钟信号生成工作波特率，工作波特率为波特率移位频移。 发送器电路被配置为基于操作波特率进行操作，并且接收器电路被配置为基于操作波特率进行操作。