Disc interface, disc interface system having the same, and disc interfacing method
First Claim
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1. A disc interface, comprising:
- a test unit that encodes test command input information in response to a second logic state of a test enable signal to generate a testbench signal as digital reception information and decodes digital transmission information input as a test result to output debugging information, the test unit not outputting the testbench signal and debugging information at a first logic state of the test enable signal;
a physical layer unit that converts a computer output signal to output physical layer information as the digital reception information and converts the digital transmission information to generate a computer input signal;
a multiplexer that selects one of the testbench signal and physical layer information in response to the logic state of the test enable signal to output the digital reception information; and
a digital processing unit that processes the digital reception information to output interface output information and generates the digital transmission information in response to the digital reception information or interface input information.
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Abstract
A disc interface, a disc interface system having the same, and a disc interfacing method may be provided. The disc interface may receive a reduced quantity of test command information at a lower speed which may correspond to an operation speed of a general test apparatus to automatically generate a real-time testbench signal. The digital unit of the disc interface may be operated at an actual operation speed though the test command information and debugging data may be input and output at a lower speed. Thus, digital circuits operating at a high speed may be tested using an less expensive test apparatus.
5 Citations
22 Claims
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1. A disc interface, comprising:
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a test unit that encodes test command input information in response to a second logic state of a test enable signal to generate a testbench signal as digital reception information and decodes digital transmission information input as a test result to output debugging information, the test unit not outputting the testbench signal and debugging information at a first logic state of the test enable signal;
a physical layer unit that converts a computer output signal to output physical layer information as the digital reception information and converts the digital transmission information to generate a computer input signal;
a multiplexer that selects one of the testbench signal and physical layer information in response to the logic state of the test enable signal to output the digital reception information; and
a digital processing unit that processes the digital reception information to output interface output information and generates the digital transmission information in response to the digital reception information or interface input information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A disc interface system, comprising:
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a disc interface that encodes test command input information to generate a testbench signal, converts a computer output signal to generate physical layer information, processes one of the testbench signal and physical layer information as digital reception information to output interface output information, and converts digital transmission information generated in response to the digital reception information or interface input information to output a computer input signal or decodes the digital transmission information to output debugging information; and
a back-up device that outputs the interface input information as information of a result obtained by executing the test command in response to the interface output information. - View Dependent Claims (9, 10, 11)
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12. A disc interfacing method, comprising:
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encoding test command input information in response to a second logic state of a test enable signal to generate a testbench signal as digital reception information and decoding digital transmission information input as a test result to output debugging information, outputting none of the testbench signal and debugging information at a first logic state of the test enable signal;
converting a computer output signal to output physical layer information as the digital reception information and converting the digital transmission information to generate a computer input signal;
selecting one of the testbench signal and physical layer information in response to the logic state of the test enable signal to output the digital reception information; and
processing the digital reception information to output interface output information and generating the digital transmission information in response to the digital reception information or interface input information. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A disc interfacing method, comprising:
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encoding test command input information to generate a testbench signal;
converting a computer output signal to generate physical layer information;
processing one of the testbench signal and physical layer information as digital reception information, to output interface output information;
converting digital transmission information generated in response to the digital reception information or interface input information to output a computer input signal;
decoding the digital transmission information to output debugging information; and
outputting the interface input information by a back-up device as information of a result, obtained when the back-up device executes the test command, in response to the interface output information. - View Dependent Claims (20, 21, 22)
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Specification