USB/UART converter and its control method

Details USB/UART converter and its control method USB/UART converter and its control method

1998-10-19

2000-11-21

Auve, Glenn A.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

710131, G06F 1338

Patent

active

061516538

ABSTRACT:
A USB/UART converter connected between a DTE and a DCE is disclosed. The USB/UART converter comprises: a USB controller connected to a USB of the DTE, and a UART controller connected to the DCE and the USB controller. According to the present invention, the control signals for the DCE and the parameter settings for the UART controller are sent from the DTE through the USB controller in a control transfer mode. Then, the UART controller transfers the status signals through the USB controller to the DTE in an interrupt transfer mode after detecting the status signals coming from the DCE. Subsequently, the data can be transferred between the DTE and the DCE in an isochronous data transfer mode in response to the parameters.

REFERENCES:
patent: 5222081 (1993-06-01), Lewis
patent: 5301274 (1994-04-01), Li
patent: 5406369 (1995-04-01), Killpatrick et al.
patent: 5654983 (1997-08-01), Sauser, Jr.
patent: 5661751 (1997-08-01), Johnson
patent: 5799208 (1998-08-01), Hwang et al.
patent: 5920825 (1999-07-01), Patel et al.

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