標準號：IEEE 1014-1987
中文標準名稱：通用底板總線.VME總線
英文標準名稱：Standard for a Versatile Backplane Bus: VMEbus IEEE Computer Society Document
標準類型：L61
發布日期：1987/1/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：L61
國際標準分類號：35.160
適用范圍：specifies a high-performance backplane bus for use in microcomputer systems that employ single or multiple microprocessors. It is based on the VMEbus specification, released by the VME Manufacturers' Group in August of 1982. The bus includes four subbuses: data transfer bus, priority interrupt bus, arbitration bus, and utility bus. The data transfer bus supports 8-, 16-, and 32-bit transfers over a nonmultiplexed 32-bit data and address highway. The transfer protocols are asynchronous and fully handshaken. The priority interrupt bus provides real-time interrupt services to the system. The allocation of bus mastership is performed by the arbitration bus, which allows to implement round robin and prioritized arbitration algorithms. The utility bus provides the system with power-up and power-down synchronization. The mechanical specifications of boards, backplanes, subracks, and enclosures are based on IEC 297 specification also known as the Euroboard form factor