The invention belongs to the technical field of
data transmission and converting and particularly relates to a multi-interface
bus converting expanding
chip. The shortcoming that an existing
chip can only convert and expand one kind of interfaces is overcome. The functions of different interface converting and various interface
bus expanding are achieved. The requirements for different interface
bus converting and expanding between main control CPUs, between a main control CPU and a
peripheral and between peripherals are met. The
chip comprises a main interface module, a main interface
data processing logic part, a
clock generator, a power
supply management module, a double-interface large-capacity RAM storage, a chip inner controller, an expanding interface
data processing logic part, an interrupt
processing logic part and an expanding interface module. The expanding interface module can be configured to be 1-8 interfaces of different kinds flexibly. The chip has the advantages that converting and expanding between any main interface bus and expanding interface bus and between any expanding bus interfaces can be achieved, intelligent
protocol processing is carried out through data, a unified data
package format is formed for storing and
processing, and the large-capacity double-interface RAM in the chip guarantees stored data.