发明名称 |
System for controlling the clock to each of a plurality of protocol circuits of an interface control integrated circuit based on the type of data to be transmitted |
摘要 |
In an interface control semiconductor integrated circuit including a plurality of protocol circuits for processing a protocol such as AV- or PC-oriented protocols engaged in an IEEE 1394 standard-compliant data transmission, power consumption is reduced. To achieve this, the interface control semiconductor integrated circuit including the protocol circuits is provided with a plurality of switches associated with the respective protocol circuits and each of the switches performs a switching between supply and shut-off of a clock. A clock is supplied to one of the protocol circuits which should be used whereas clock to unused protocol circuits are shut-off, by controlling each of the switches.
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申请公布号 |
US7213161(B2) |
申请公布日期 |
2007.05.01 |
申请号 |
US20030692743 |
申请日期 |
2003.10.27 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
MATSUI TAKAYUKI;YANAGISAWA RYOUGO;IWAMOTO KIYOTAKA |
分类号 |
G06F1/00;H04L12/40;G06F1/32;H04L29/08 |
主分类号 |
G06F1/00 |
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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