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Data processing system and data processing method

A technology of data processing system and processor, which is applied in the field of data processing and can solve problems such as long time required and many resources

Active Publication Date: 2008-09-24
广东北斗南方科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0060] When the CPU writes to peripheral devices such as FLASH, it takes a long time. At the same time, when the CPLD operates on peripheral devices, it needs to consume more resources.

Method used

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  • Data processing system and data processing method
  • Data processing system and data processing method
  • Data processing system and data processing method

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Embodiment Construction

[0104] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0105] By analyzing the existing technology, it can be found that when the CPU writes to peripheral devices such as FLASH, it takes a long time because: the time for the CPU to write the CPLD plus the time for the CPLD to write the FLASH, resulting in the operation Slow down. If the write operation time of CPU to CPLD is equal to the time of CPLD to FLASH write operation, the actual write operation speed is only half of CPU write operation speed. At the same time, when the CPLD operates on peripheral devices, it needs to use internal resources to latch data lines D (7..0) and implement corresponding control logic, so it needs to consume more resources.

[0106] Based on this, the present invention provides a data processing system, which consists in: connecting the converter with the LBCMD and LBAD of the CPU processor, and generating control signals (CS...

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PUM

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Abstract

The present invention discloses a data processing system and a data processing method. The address and data multiplexing bus pin of a CPU processor is connected with the data bus pin of a data storage device. When operating the data, the CPU processor sends control commands and address information by controlling the bus pin, the address and data multiplexing bus pin. A converter converts the control commands and the address information into control signals and address signals in the format of a data storage device and sends to the data storage device after receiving the control commands and the address information. The data storage device responds to the data operation of the CPU processor which is carried out by the address and data multiplexing bus pin and the data bus pin of the data storage device according to the control signals and the address signals. Through the present invention, the data operation speed of the CPU processor on peripheral components is not affected by the converter; when in the data operation, the data is processed without the converter, thus saving the internal resources of the converter.

Description

technical field [0001] The invention relates to data processing equipment, in particular to a data processing system and a data processing method of the system. Background technique [0002] The processor integrated with the LOCAL BUS (local bus) controller can perform read and write operations on peripheral devices such as FLASH, and the process will be described below. [0003] RM9224 belongs to the RM9K series communication processor of PMC Company, and integrates LOCAL BUS (local bus) controller inside, which is used to read the startup code and operate the peripheral devices. The LOCALBUS controller supports 24-bit address information, 8 / 16 / 32-bit data width, and 4 chip select control signals. Since the peripheral devices used are all 8-bit data width, the following uses 8-bit data as an example to illustrate. [0004] figure 1 It is a schematic diagram of the LOCAL BUS pin structure of RM9224. As shown in the figure, the LOCAL BUS of RM9224 consists of LBCLK (bus cl...

Claims

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Application Information

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IPC IPC(8): G06F13/40G06F13/16
Inventor 杨宁
Owner 广东北斗南方科技有限公司
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