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Circuit for transmitting control signal

A transmission control and signal technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of increasing design costs, achieve the effect of saving design costs and ensuring transmission quality

Inactive Publication Date: 2005-07-06
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the number of serial ATA interface pins decreases, an additional transmission line is required to transmit the judgment signal, which undoubtedly increases the design cost

Method used

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  • Circuit for transmitting control signal

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Experimental program
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Embodiment Construction

[0012] see figure 1 , is a schematic diagram of the implementation environment of the circuit of the present invention that uses the ground pin of the serial ATA interface to transmit the control signal.

[0013] Wherein, the backboard 1 is the place for controlling and reacting the whole action, and includes a controller 10 , a control circuit 11 and a first connector 12 thereon. There is a second connector 20 on the disk board 2, which is responsible for connecting the hard disk 21, and serves as a transmission interface between the hard disk 21 and the backplane 1, and the hard disk 21 can be hot-swapped thereon. In the present invention, the first connector 12 and the second connector 20 are connectors of the serial ATA interface specifications that cooperate with each other, and these ATA interface connectors all include 4 data transmission pins (pin 2, pin 3. Pin 5 and pin 6) and three ground pins (pin 1, pin 4 and pin 7). Therefore, the connection between the backplan...

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Abstract

This invention relates to control signals transmission circuit, which comprises the following: one input end connected to the earth leg of one ATA interface connector and directly connected to one high level; one PNP audion; one first NPN audion and one second NPN audion; one output end connected to one controller and output high and low level signals to the controller. The input and output ends are connected through one wire and the integration electrode of PNP audion, first NPN audion emission electrode and the second NPN audion emission electrode are connected to the earth.

Description

【Technical field】 [0001] The invention relates to a circuit for transmitting control signals, in particular to a circuit for transmitting control signals by using a ground pin of a serial ATA interface. 【Background technique】 [0002] Due to the low transmission speed of the traditional parallel ATA interface, the storage system using the parallel ATA interface, such as the hard disk, has gradually become the bottleneck of the current PC system, and the appearance of the serial ATA (Serial ATA) interface is expected to solve this problem. Compared with the traditional parallel ATA interface, the serial ATA interface has a higher data transfer rate, which can reach a data transfer rate of 150MB / s in the SATA1.0 standard, which is higher than the highest data transfer rate that parallel ATA / 133 can provide. It is still slightly higher, and Serial ATA will eventually achieve a storage system data transfer rate of 600MB / s. In addition, the complexity of the system of the serial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 廖羿岚
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD