- 专利标题： Clock-generator architecture for a programmable-logic-based system on a chip
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申请号： US10903473申请日： 2004-07-29
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公开(公告)号： US07102391B1公开(公告)日： 2006-09-05
- 发明人: Shin-Nan Sun , Limin Zhu , Theodore Speers , Gregory Bakker
- 申请人： Shin-Nan Sun , Limin Zhu , Theodore Speers , Gregory Bakker
- 申请人地址： US CA Mountain View
- 专利权人： Actel Corporation
- 当前专利权人： Actel Corporation
- 当前专利权人地址： US CA Mountain View
- 代理机构： Sierra Patent Group, Ltd.
- 主分类号： H03D9/00
- IPC分类号： H03D9/00
摘要：
A programmable system-on-a-chip integrated circuit device comprises at least one of a crystal oscillator circuit, an RC oscillator circuit, and an external oscillator input. A clock conditioning circuit is selectively coupleable to one of the programmable logic block, the crystal oscillator circuit, the RC oscillator circuit, and the external oscillator input. A real-time clock is selectively coupleable to one of the programmable logic block, the crystal oscillator circuit, the RC oscillator circuit, and the external oscillator input. A programmable logic block is coupled to the clock conditioning circuit and the real-time clock.