| 摘要 |
MESSAGE PROTOCOL MODULE A peripheral adapter interfaces at least one peripheral in a data processing system to an I/O processor which controls the method of communication. The peripheral adapter comprises a first means which performs a serial-parallel, parallel-serial transformation on the information from or to the I/O processor, a second means which provides peripheral controller logic functions, and a third means which generates response transmissions to the I/O processor in accordance with a defined message protocol. The method of communication is defined such that the peripheral adapter is essentially slave to the I/O processor, responding to messages initiated by the I/O processor. |
