Clock enable system
AssigneeAnalog Devices, Inc.
InventorsJeffrey C. Gealow, Thomas J. Barber JR., Palle Birk, Joern Soerensen
Life of this patent
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Abstract
A clock enable system for a multichip device includes a first integrated circuit including a clock signal and at least a second integrated circuit including at least one functional block periodically requiring clock signals from the first integrated circuit; a clock required circuit responsive to each functional block for providing a clock required signal in response to activation of any one or more of the functional blocks; and a clock enable circuit responsive to the clock required signal for enabling the first integrated circuit to provide clock signals to the functional blocks on the second integrated circuit.
Claims7
A clock enable system for a multichip device comprising:
- a first integrated circuit including a clock signal and at least a second integrated circuit including at least one functional block requiring clock signals from the first integrated circuit;
- a clock required circuit responsive to each said functional block for providing a clock required signal in response to activation of any one or more of said functional blocks;
- and
- a clock enable circuit responsive to said clock required signal for enabling the first integrated circuit to provide clock signals to said functional blocks on said second chip.
A clock enable system for a multichip integrated circuit cellular terminal comprising:
- a digital baseband processor integrated circuit including a clock signal and an analog baseband processor integrated circuit including at least one functional block requiring clock signals from said clock driver;
- a clock required circuit responsive to each said functional block for providing a clock required signal in response to activation of any one or more of said functional blocks;
- and
- a clock enable circuit responsive to said clock required signal for enabling the first integrated circuit to provide clock signals to said functional blocks on said analog baseband integrated circuit.
Dependencies are inferred from the claim text.