| 摘要 |
PURPOSE:To confirm the adequacy of the selection of a shift ring by confirming bit information read out based on address information when the bit information is read out of the shift ring. CONSTITUTION:A service processor 1 places a specific shift ring 2 in shift-in/out mode through a ring selection line 6, this shift ring 2 is selected as a specific shift ring 2, and data as the bit information and address information outputted from an address information write part 1A are transmitted to the specific shift ring 2. At this time, the address information is stored in an address part 7 and the data information is stored in a following data part 8 in order. At the same time, the service processor 1 places a certain shift ring 2 in shift-in/out mode through the ring selection line 6 and reads address information and data out of this shift ring 2 in order to the service processor. An address information confirmation part 1B compares the read address information with the address information of the specific shift ring 2 which is selected to confirm its adequacy. |
