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Method for improved UART frequency support

IP.com Disclosure Number: IPCOM000042265D
Publication Date: 2005-Feb-03
Document File: 2 page(s) / 335K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for improved universal asynchronous receiver/transmitter (UART) frequency support. Benefits include improved functionality and improved reliability.

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Method for improved UART frequency support

Disclosed is a method for improved universal asynchronous receiver/transmitter (UART) frequency support. Benefits include improved functionality and improved reliability.

Background

              Conventionally, UART supports serial frequencies according to the following formula:

Baud Rate =  

Description

              The disclosed method improves the UART formula to support a wider frequency range, especially for high serial baud rates. The method provides a high throughput (HTP) rate (see Figure 1). The formula is as follows:

Baud Rate  

              The CORR range is 0 to 15.

Advantages

              The disclosed method provides advantages, including:
•             Improved functionality due to supporting wider baud-rate range

•             Improved reliability due to decreasing the error rate between two UART units

Fig. 1