| 摘要 |
PURPOSE:To devise fail-safe performance against a fault of a tri-state buffer so as to allow the system-down to hardly occur and to attain excellent operating reliability. CONSTITUTION:Plural tri-state buffers TB are provided in the 1:N communication system in which one mater set 10 and plural slave sets 30 are connected in series by two-way transmission lines, the tri-state buffers TB are provided as output buffers and communication is implemented between the master set 10 and each of the slave sets 30, and the plural tri-state buffers TB connected in series are further connected in parallel to ensure a valid operation of the entire tri-state buffers TB even when on tri-state buffer is faulty. |
