发明名称 |
METHOD AND CIRCUIT ARRANGEMENT FOR CONTROLLING A SERIAL INTERFACE CIRCUIT |
摘要 |
A method and circuit for reducing the load of the microprocessor unit of a microprocessor controlled, serial interface circuit. The transmission side of the interface circuit has a first auxiliary stage that, dependent on the presetting by the microprocessor unit generates a control bit stream and transmits a data bit stream from a serial bit stream converter stage. A self-generated data bit stream generates prompter signals for the microprocessor unit and the reception side of the interface circuit has a second auxiliary stage that recognizes message changes over a predetermined time period and generates a prompter signal when the message change occurs.
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申请公布号 |
US5168556(A) |
申请公布日期 |
1992.12.01 |
申请号 |
US19890413228 |
申请日期 |
1989.09.27 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
LAJTAI, KAROLY;FENZL, JOSEF |
分类号 |
G06F13/38;H04L29/06 |
主分类号 |
G06F13/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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