System comprising a master device and a slave device having multiple integrated circuit die, wireless communication unit and method therefor
First Claim
1. A system comprising:
- a master device;
a slave device having;
a first die comprising an interface having a slave decoder configured to support a MIPI™
radio frequency front end, RFFE, slave protocol; and
at least one second die, comprising a simplified address decoder, operably coupled to the first die; and
a shared control bus configured to support at least a clock signal and a data signal shared between the master device, first die and the at least one second die on the slave device;
wherein the interface of the first die is configured to generate at least one circuit enable signal routed to the at least one second die and the simplified address decoder of the at least one second die is configured to process the clock signal and the data signal in response to the at least one circuit enable signal.
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Accused Products
Abstract
A system is described that comprises: a master device and a slave device. The slave device comprises: a first die comprising an interface comprising a decoder configured to support a MIPI™ RFFE slave protocol; at least one second die comprising a simplified address decoder, operably coupled to the first die; and a shared control bus that is configured to support at least a clock signal and a data signal shared between the master device and the at least one second die on the slave device. The interface of the first die is configured to generate at least one circuit enable signal, routed to the at least one second die. The simplified address decoder is configured to process the clock signal and the data signal in response to the at least one circuit enable signal. In this manner, by partitioning the protocol handling to a protocol decoder in a first die, and one or more second die that support a simplified address decoder, the first die is able to individually select the die to receive a data frame by generating and routing the enable signal.
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Citations
20 Claims
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1. A system comprising:
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a master device; a slave device having; a first die comprising an interface having a slave decoder configured to support a MIPI™
radio frequency front end, RFFE, slave protocol; andat least one second die, comprising a simplified address decoder, operably coupled to the first die; and a shared control bus configured to support at least a clock signal and a data signal shared between the master device, first die and the at least one second die on the slave device; wherein the interface of the first die is configured to generate at least one circuit enable signal routed to the at least one second die and the simplified address decoder of the at least one second die is configured to process the clock signal and the data signal in response to the at least one circuit enable signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operating a system comprising a master device and at least one slave device wherein the at least one slave device comprises a first die comprising a decoder configured to support a MIPI™
- RFFE slave protocol and at least one second die comprising a simplified address decoder and operably coupled to the first die, the method comprising;
supporting at least a clock signal and a data signal between the master device and the at least one second die on the slave device via a shared control bus; processing the data signal at the slave decoder on the first die to determine whether the at least one second die is to decode the data signal; generating, at the first die, a circuit enable signal; routing the circuit enable signal to the at least one second die; processing the clock signal and the data signal by the simplified address decoder in response to the circuit enable signal. - View Dependent Claims (10, 11, 12)
- RFFE slave protocol and at least one second die comprising a simplified address decoder and operably coupled to the first die, the method comprising;
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13. A wireless communication unit comprising:
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a master device; a slave device, comprising; a first die comprising an interface having a slave decoder configured to support a MIPI™
radio frequency front end, RFFE, slave protocol;at least one second die, comprising a simplified address decoder, operably coupled to the first die; and a shared control bus configured to support at least a clock signal and a data signal shared between the master device, first die and the at least one second die on the slave device; wherein the interface of the first die is configured to generate at least one circuit enable signal routed to the at least one second die and the simplified address decoder of the at least one second die is configured to process the clock signal and the data signal in response to the at least one circuit enable signal. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification