| 摘要 |
PURPOSE:To use mutual input/output devices in common by disconnecting an interface section of the input/output device of the own system in receiving other system route connection order from a central processing unit of the own system, transmitting a route switching signal to the other and connecting the interface section of the own system input/output device to the other system when the route switching signal is received from an input/output control device of the other system. CONSTITUTION:When a 0 system control input IN0 is logical 0 and a 1 system control input IN1 is logical 1, an synchronous communication interface adaptor (ACIA)100 selects an input/output device of other system and data transmitted to the input/output device by the ACIA100 is sent to the input/output device of other system in a route of TXD terminal amplifier 170 with gate amplifier 181 with gate IB terminal of 2-path selector 111 IY terminal of 2-path selector 111 amplifier 211 output terminal A1. The data received by the input/output device of other system is sent to the ACTA 100 of the own system in a route of input terminal B1 amplifier 221 amplifier 201 with gate amplifier 190 with gate terminal 1B of 2-path selector 120 terminal 1Y of 2-path selector 120 RXD terminal of ACIA100. |
