COMMUNICATION DEVICE AND COMMUNICATION SYSTEM
First Claim
1. A communication device comprising:
- a communication part; and
a control part, the communication and control parts operated in asynchronization with each other,wherein the communication part has an analog circuit for communication and an interface circuit connected with the control part,the interface circuit synchronously interfaces between the communication and control parts in synchronization with a first clock signal output from the control part, andafter having issued a direction of a communication action to the communication part, the control part stops supply of the first clock signal to the communication part until receiving a notice of end of a communication action relevant to a direction thereof form the communication part.
2 Assignments
0 Petitions
Accused Products
Abstract
A communication device with digital and analog circuits mixedly mounted thereon, for which the influence of noise generated in its interface part on the analog circuit part can be reduced, which does not interfere with the downsizing of the communication device. The communication device has a communication part, such as semiconductor communication device, and a control part, such as a semiconductor control device operable to control the communication part. The communication part and control part are operated in asynchronization with each other. The communication part includes an analog circuit. The interface circuit of the communication part, which is interfaced with the control part, receives a clock signal supplied from the communication part and conducts a synchronous interface. The control part stops supplying the clock signal during the time when the communication part operates the analog circuit.
8 Citations
16 Claims
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1. A communication device comprising:
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a communication part; and a control part, the communication and control parts operated in asynchronization with each other, wherein the communication part has an analog circuit for communication and an interface circuit connected with the control part, the interface circuit synchronously interfaces between the communication and control parts in synchronization with a first clock signal output from the control part, and after having issued a direction of a communication action to the communication part, the control part stops supply of the first clock signal to the communication part until receiving a notice of end of a communication action relevant to a direction thereof form the communication part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A communication system comprising:
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a plurality of communication devices, wherein at least one communication device has a communication part and a control part, which are operated in asynchronization with each other, the communication part has an analog circuit for communication, and an interface circuit connected with the control part, the interface circuit synchronously interfaces between the communication part and control part in synchronization with a first clock signal output from the control part, and the control part issues the communication part with a direction of a communication action, and then stops supplying the first clock signal to the communication part during time when the analog circuit is in action. - View Dependent Claims (14, 15, 16)
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Specification