| 摘要 |
PURPOSE: A PCI(Peripheral Component Interconnect) bus control device having adaptability is provided to have the adaptability with excellent compatibility by voluntarily changing a device ID and a vendor ID, using an EEPROM(Electrically Erasable and Programmable ROM). CONSTITUTION: A PCI system bus(210) interfaces a signal. A bus IO(Input and Output) module(220) transmits and receives the signal with the PCI system bus(210). A PCI master block(230) requests and receives a vendor ID and a device ID, and transmits and receives data with the bus IO module(220) according to the received ID information. A PCI composition register(240) displays an indication signal of the request of the vendor ID and the device ID. The PCI composition register(240) receives, stores, and outputs the vendor ID and the device ID. A PCI slave block(250) receives the indication signal, and generates and outputs a retry signal. The PCI slave block(250) requests the vendor ID and the device ID to the PCI composition register(240), receives device information according to the request of the vendor ID and the device ID, and transmits and receives data according to device information. An application logic(260) transmits and receives the data with the PCI slave block(250), and provides an application function. A memory unit(270) stores a plurality of vendor IDs and device IDs, and outputs the vendor ID and the device ID to the PCI composition register(240) when the retry signal of the PCI slave block(250) is received.
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