| 摘要 |
PURPOSE:To start quickly a read command of a data reception side by giving the priority to the end interruption of an SQ command of the set number when a data from a communication destination is received even if the end interruption of a search queue SQ command represents the quene state. CONSTITUTION:SQDVN0, SQDVN1- are set numbers applying queue to the end interruption of an SQ command and an interruption SQN is a set number N selected among them and the set number N causes the end interruption. Suppose that a number RVDVN of a device receiving a data is 3, the SQDVN3 is indicated and the SQDVN3 is used as the interruption SQN before the SQVDN0. A decoder DEC checks a falg F set by the RVDVN to operate a selector and to output the said SQDVN3. The timing is sent normally at 500mus each and when the interruption is performed instantly in case of the priority interruption, the system becomes more effective. |
