MEMORY DEVICE AND MEMORY DEVICE CONTROLLER
First Claim
1. A memory device connectable to a host device via a memory device controller, comprising:
- a memory module for storing data; and
a data communication unit configured to communicate data with the memory device controller in synchronization with a predetermined clock signal, in order to write or read data to or from the memory module,wherein the data communication unit is capable of transferring data in a single edge synchronization mode in which data is transferred in synchronization with either one of a rising edge and a falling edge of the clock signal or in a double edge synchronization mode in which data is transferred in synchronization with both the rising edge and the falling edge,the memory device can be set to operate as a bus master, andwhen the memory device is set to operate as a bus master, the data communication unit transfers data in the double edge synchronization mode.
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Accused Products
Abstract
A memory device controller interposed between a memory device and a host device includes a data communication unit configured to transfer data to and from the memory device in synchronization with a clock signal. The data communication unit supports a single edge synchronization mode in which data is transferred in synchronization with either one of a rising edge and a falling edge of the clock signal, and a double edge synchronization mode in which data is transferred in synchronization with both the rising edge and the falling edge. The data communication unit transfers data in the double edge synchronization mode when data is transferred by the memory device operating as a bus master.
17 Citations
10 Claims
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1. A memory device connectable to a host device via a memory device controller, comprising:
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a memory module for storing data; and a data communication unit configured to communicate data with the memory device controller in synchronization with a predetermined clock signal, in order to write or read data to or from the memory module, wherein the data communication unit is capable of transferring data in a single edge synchronization mode in which data is transferred in synchronization with either one of a rising edge and a falling edge of the clock signal or in a double edge synchronization mode in which data is transferred in synchronization with both the rising edge and the falling edge, the memory device can be set to operate as a bus master, and when the memory device is set to operate as a bus master, the data communication unit transfers data in the double edge synchronization mode. - View Dependent Claims (2, 3, 4)
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5. A memory device controller interposed between a memory device and a host device and connectable to the memory device through a predetermined interface, the memory device controller comprising a data communication unit configured to transfer data to and from the memory device in synchronization with a clock signal,
wherein the data communication unit supports a single edge synchronization mode in which data is transferred in synchronization with either one of a rising edge and a falling edge of the clock signal, and a double edge synchronization mode in which data is transferred in synchronization with both the rising edge and the falling edge, and the data communication unit transfers data in the double edge synchronization mode when data is transferred by the memory device operating as a bus master.
Specification