Invention Grant
US08667355B2 Data source, destination and input/output circuit with multiplexer and flip-flop
有权
数据源，目的地和输入/输出电路与多路复用器和触发器
- Patent Title: Data source, destination and input/output circuit with multiplexer and flip-flop
- Patent Title (中): 数据源，目的地和输入/输出电路与多路复用器和触发器
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Application No.: US13653705Application Date: 2012-10-17
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Publication No.: US08667355B2Publication Date: 2014-03-04
- Inventor: Lee D. Whetsel
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Lawrence J. Bassuk; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: G01R31/28
- IPC: G01R31/28
Abstract:
The present disclosure describes a novel method and apparatus of using the JTAG TAP's TMS and TCK terminals as a general purpose serial Input/Output (I/O) bus. According to the present disclosure, the TAP's TMS terminal is used as a clock signal and the TCK terminal is used as a bidirectional data signal to allow serial communication to occur between; (1) an IC and an external controller, (2) between a first and second IC, or (3) between a first and second core circuit within an IC.
Public/Granted literature
- US20130042160A1 SERIAL I/O USING JTAG TCK AND TMS SIGNALS Public/Granted day:2013-02-14
Information query
