Power control signalling
Data processing systems ( 2 ) having power management mechanisms ( 8, 10, 14, 16 ) for one or more power domains ( 6, 12 ) utilise an active high power enable request generated by a power controller ( 8, 14 ) to trigger a power supply unit ( 10, 16 ) to generate a required power supply signal. Pendi...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
27.09.2005
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| Edition | 7 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | Data processing systems ( 2 ) having power management mechanisms ( 8, 10, 14, 16 ) for one or more power domains ( 6, 12 ) utilise an active high power enable request generated by a power controller ( 8, 14 ) to trigger a power supply unit ( 10, 16 ) to generate a required power supply signal. Pending valid generation of this power supply signal, or more generally when a power domain is switched off, an active signal which is generated by the power controller ( 8, 14 ) and applied to the reset input of the power domain ( 6, 12 ) is used to hold the power domain ( 6, 12 ) in an inactive reset state. When the power supply signal becomes valid, the active signal releases the power domain ( 6, 12 ) to commence operation. |
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| AbstractList | Data processing systems ( 2 ) having power management mechanisms ( 8, 10, 14, 16 ) for one or more power domains ( 6, 12 ) utilise an active high power enable request generated by a power controller ( 8, 14 ) to trigger a power supply unit ( 10, 16 ) to generate a required power supply signal. Pending valid generation of this power supply signal, or more generally when a power domain is switched off, an active signal which is generated by the power controller ( 8, 14 ) and applied to the reset input of the power domain ( 6, 12 ) is used to hold the power domain ( 6, 12 ) in an inactive reset state. When the power supply signal becomes valid, the active signal releases the power domain ( 6, 12 ) to commence operation. |
| Author | FLYNN DAVID WALTER |
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| Snippet | Data processing systems ( 2 ) having power management mechanisms ( 8, 10, 14, 16 ) for one or more power domains ( 6, 12 ) utilise an active high power enable... |
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| Title | Power control signalling |
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