Data processing system and data processing method

Abstract

The invention discloses a data processing system and a data processing method, comprising: the address and data multiplexing bus pins of the CPU processor are connected with the data bus pins of the data storage device, and the CPU processor controls the Bus pins, addresses and data multiplex bus pins to send control commands and address information; after receiving the control commands and address information, the converter converts them into control signals and address signals in the format of the data storage device and sends them to the data storage device ; The data storage device responds to the data operation performed by the CPU processor through the address and data multiplexing bus pins and the data bus pins of the data storage device according to the control signal and the address signal. Using the invention, the data operation speed of the CPU processor to the peripheral devices is not affected by the converter, and the data does not need to be processed by the converter during data operation, which saves 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 LOCALBUS pin structure of RM9224. As shown in the figure, the LOCAL BUS of RM9224 consists of LBCLK (bus clo...

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.

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