External storage device and method of accessing same
First Claim
1. A storage device comprising:
- a memory for storing data; and
a circuit having a data input, a control input, and a data output;
wherein the circuit provides an address input from the data input to the memory in accordance with a control signal from the control input to store data provided to the data input at the address in the memory or to output data at the address in the memory to the data output.
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Accused Products
Abstract
A storage device (200) has a memory and a circuit (100) which has a data input (Din), a control input (CTRL) and a data output (Dout), and provides an address input from the data input (Din) to the memory in accordance with a control signal from the control input (CTRL), so that the storage device (200) stores the data at the address in the memory or outputs data at the address in the memory to the data output (Dout). The apparatus provides the control signal to the control input (CTRL) from the interface (PORTS, P0, P1, P2), address and the data to the data input (Din) from the interface (PORTS, P0, P1, P2), to store the data at the address in the memory or to output data at the address in the memory to the data output (Dout). The apparatus may have a microcontroller (MPU) in which the interface (PORTS, P0, P1, P2) is provided.
35 Citations
39 Claims
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1. A storage device comprising:
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a memory for storing data; and
a circuit having a data input, a control input, and a data output;
wherein the circuit provides an address input from the data input to the memory in accordance with a control signal from the control input to store data provided to the data input at the address in the memory or to output data at the address in the memory to the data output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17)
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11. The storage device according to claim 11, further comprising, a switch connected to the port for setting the status.
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18. A method for access to a storage device having a data input, a control input, a data output, and a memory for storing data, wherein the storage device provides an address from the data input to the memory in accordance with a control signal from the control input to store data provided to the data input at the provided address in the memory or to output data at the address in the memory to the data output, comprising:
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providing an address to the data input to output the address to the memory;
providing data to the data input to output the data to the memory; and
providing a first control signal to the control input to store the data at the address into the memory. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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- 26. An apparatus having (1) an interface for data exchange from and to a storage device having a data input, a control input, a data output, and a memory for storing data, wherein the storage device provides an address from the data input to the memory in accordance with a control signal from the control input to store data provided to the data input at the provided address in the memory or to output data at the address in the memory to the data output, and (2) a connector for connecting the data input, a data output and the control input to the interface and supplying power to the storage device, wherein the apparatus provides the control signal to the control input from the interface, and the data or an address to the data input from the interface to store the data at the address in the memory or to output data at the address in the memory to the data output.
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36. An apparatus having (1) an interface for data exchange from and to the external storage device having a data input, a data output, a control input, and a memory provided an address from the data input in accordance with a control signal from the control input to output data at the provided address in the memory from the data output, and (2) a connector for connecting the data input, a data output and the control input to the interface and supplying power to the external storage device, wherein the apparatus provides the control signal to the control input, and changed part of the address to the data input from the interface to set the part to selected bits of the address held in the external storage device for modifying the address so that the external storage device outputs the data stored at the modified address in the memory from the data output.
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37. An apparatus having (1) an interface for data exchange from and to the external storage device having a data input, a data output, a control input, and a memory provided an address from the data input in accordance with a control signal from the control input to output data at the provided address in the memory from the data output, wherein the memory has a mode in which the data are successively output from the memory, and (2) a connector for connecting the data input and the control input to the interface and supplying power to the external storage device, wherein the apparatus provides the control signal to the control input, and the address to the data input from the interface to output data at the address in the memory from the data output, and sets a value into the interface to turn control status of the memory such that the memory operates in the mode.
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38. An apparatus having (1) an interface for data exchange from and to the external storage device having a data input, a data output, a control input, and a memory provided an address from the data input in accordance with a control signal from the control input to output data at the provided address in the memory from the data output, and a readable port set to a status for identification and control of access to the memory, and (2) a connector for connecting the data input and the control input to the interface and supplying power to the external storage device, wherein the apparatus reads the status from the interface to identify access of the memory, and provides the control signal to the control input, and the address to the data input from the interface to output the data at the address in the memory from the data output.
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39. An apparatus having (1) an interface for data exchange from and to a storage device having a data input, a control input, a data output, and a memory for storing data, wherein the storage device inputs a command from the data input in accordance with a control signal from the control input to output data in the memory from the data output, and (2) a connector for connecting the data input, a data output and the control input to the interface and supplying power to the storage device, wherein the apparatus provides the control signal to the control input from the interface, and the command to the data input from the interface to output data in the memory from the data output.
Specification