发明名称 |
Clock conditioning circuit for microprocessor applications |
摘要 |
A microprocessor clocking system is provided for achieving attenuation of a clock signal sent to a microprocessor during initial activation of a connected power supply. By attenuating the clock signal during initial turn-on of the power supply, the clock input to the microprocessor is prevented from erroneous triggering and improper operation. After a delay period has expired, the clock signal is allowed to input directly to the microprocessor input. The delay period is determined as a time exceeding normal spurious noise conditions found on the power supply during initial activation. The microprocessor clocking system includes a clock conditioning circuit configured between a clock signal output of a core logic unit and the clock signal input to a microprocessor. The clock conditioning circuit utilizes a turn-on circuit and a delay circuit coupled to the power supply voltage. The turn-on circuit and delay circuit are both connected to an attenuator, and the attentuator functions to attenuate the clock signal during initial power supply activation.
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申请公布号 |
US5561389(A) |
申请公布日期 |
1996.10.01 |
申请号 |
US19940296023 |
申请日期 |
1994.08.25 |
申请人 |
ADVANCED MICRO DEVICES, INC. |
发明人 |
DULEY, RAYMOND S. |
分类号 |
G06F1/04;H03K17/22;H03K17/284;(IPC1-7):H03K17/22 |
主分类号 |
G06F1/04 |
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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