发明名称 |
Asynchronous wrapper for a globally asynchronous, locally synchronous (GALS) circuit |
摘要 |
The invention concerns an asynchronous wrapper for a globally asynchronous, locally synchronous circuit. The asynchronous wrapper operates with a request signal-driven clock control, supplemented by a local clock unit in the absence of request signals. It has at least one input unit which is adapted to receive a request signal from outside and to indicate to the outside the reception of the request signal by the delivery of an associated acknowledgement signal, and a pausable clock unit which is adapted to repeatedly produce a first clock signal and to deliver it to an internally synchronous circuit block associated with the asynchronous wrapper. The input unit is adapted to produce, if a request signal is applied, a second clock signal which is in a defined time relationship with the request signal and to deliver it to the internally synchronous circuit block. There is further provided a time-out unit which is connected to the input unit and which is adapted to start the delivery of the first clock signal when external request signals are absent over a given period of time.
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申请公布号 |
US7426650(B2) |
申请公布日期 |
2008.09.16 |
申请号 |
US20050542938 |
申请日期 |
2005.12.16 |
申请人 |
IHP GMBH-INNOVAYIONS FOR HIGH PERFORMANCE MICROELECTRONICS/INSTITUT FUR INNOVATIVE MIKROELEKTRONIK |
发明人 |
GRASS ECKHARD;KRSTIC MILOS |
分类号 |
G06F1/12;G06F1/00;G06F1/08;G06F1/32 |
主分类号 |
G06F1/12 |
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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