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Sequence transmission interface auxiliary device, master control device and system and method thereof

A technology of transmission interface and sequence, applied in the field of slave devices of serial transmission interface, can solve the problems of reducing transmission efficiency, increasing transmission time, reducing data reading efficiency, etc., and achieving the effect of improving transmission efficiency, improving efficiency and speeding up transmission speed.

Inactive Publication Date: 2008-03-05
SUNPLUS TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0005] Traditionally, the process of each data reading in the serial transmission interface (SPI) is: sending commands, sending addresses, and receiving data. Since each data reading needs to re-transmit commands and addresses, this design will reduce data reading. Especially when executing fast read commands, due to the high clock pulse of transmission, it is necessary to add redundant data buffer cycles (Dummy Data Cycle) between the address and data, so that the data can be read quickly and correctly. Reading, not only increases the transmission time, but also reduces the transmission efficiency

Method used

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  • Sequence transmission interface auxiliary device, master control device and system and method thereof
  • Sequence transmission interface auxiliary device, master control device and system and method thereof
  • Sequence transmission interface auxiliary device, master control device and system and method thereof

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Embodiment Construction

[0028] FIG. 3 is a block diagram of the serial transmission interface system of a preferred embodiment of the present invention. Please refer to FIG. 3. The block diagram of the serial transmission interface system includes the following three parts, which are respectively the slave device 100 of the serial transmission interface and the serial transmission interface. 300, and the main control device 400 of the serial transmission interface. The serial transmission interface slave device 100 includes the following two devices, one is a serial transmission interface decoder 150 and the other is a storage device 110 . The storage device may not be included in the slave device 100 of the serial transmission interface, but may be externally connected to the slave device 100 of the serial transmission interface, depending on actual use. In this embodiment, the storage device 110 is included, which is used as a flash memory (FLASH).

[0029] The serial transmission interface decode...

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Abstract

The present invention relates to an auxiliary device of sequence pass interface (SPI), main control device, its system and method. It is characterized by that in the process of reading data the reading address can be stored, and a new data-reading command can be added. When the next data address to be red is closed to last red data address, the new reading command can be used so as to omit the step of passing reading address and can raise sequence pass information data-reading efficiency.

Description

technical field [0001] The present invention relates to a serial transmission interface device and method, and in particular to a serial transmission interface slave device and master control device and its system and method, and omits the transmission of addresses. Background technique [0002] The access interface of the flash memory adopts a parallel transmission interface of the address and data bus, but such an interface needs to use a large number of pins, resulting in high chip packaging cost. In order to reduce the number of chip pins, there are several ways to reduce the number, among which the serial transmission interface (Serial Peripheral Interface, SPI) is a widely used method. [0003] FIG. 1 is a timing waveform diagram of a known serial transmission interface when reading. The serial transmission interface (Serial Peripheral Interface SPI) structure specified in the standard uses the serial clock signal line (SCK) and the serial transmission data line (DQ) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/38
Inventor 李育柱陈盛平林建佑
Owner SUNPLUS TECH CO LTD
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