Method and device for implementing electrically erasable programmable read-only memory

Abstract

The invention discloses a method and a device for implementing an electrically erasable programmable read-only memory (EEPROM). The device comprises a control module and an EEPROM interface protocol module, wherein the control module automatically writes data to be written into the EEPROM into a memory capable of replacing the EEPROM by running online software, and the written data is read from the memory capable of replacing the EEPROM and written into a cache; and the EEPROM interface protocol module reads corresponding data from the cache according to a read address given by equipment about to access the EEPROM, and sends the data to the equipment. The control module can automatically complete the operation of writing configuration data into the EEPROM without manual operation, the procedure for volume production of products is simplified, and the upgrade of the products is facilitated; meanwhile, the area of a printed circuit board (PCB) is saved, so the hardware cost of the products is reduced.

Description

technical field [0001] The present invention relates to a realization method and device of an integrated circuit (IC, Integrated Circuit), in particular to a realization method and device of an Electrically Erasable Programmable Read-Only Memory (EEPROM, Electrically-Erasable Programmable Read-Only Memory). Background technique [0002] EEPROM is a memory chip that does not lose data after power failure, and is widely used in electronic products due to its programmable characteristics and low cost. [0003] EEPROM access by other electronic devices can usually be achieved through a serial interface. The commonly used interface protocols are IC Bus (I2C, Inter IC Bus), Serial Peripheral Interface (SPI, Serial Peripheral Interface) and Microwire (the bus is a simple serial communication interface protocol, which uses three wires for data transmission. ), which can be selected according to the specific requirements of the application. For example, I2C is a serial bus composed...

AI Technical Summary

Problems solved by technology

However, the writing of data in EEPROM requires a dedicated download tool. For mass-produced products, this process is time-consuming and laborious, and it is not conducive to product upgrades.

And now the integration of products is getting higher and higher, and the size of printed circuit boards (PCB, Printed Circuit Board) is getting smaller and smaller. Although the volume of EEPROM is also small, it also needs to occupy a certain area in the PCB.

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