■ Result parameter of INTBACK command when acquiring peripheral data

Describes the result parameters when acquiring peripheral data using the INTBACK command.

● Basic structure of result parameters obtained by INTBACK command

When the INTBACK command is executed, the result parameters shown in Fig. 3.10 are configured in the status register and OREG.
Peripheral control status indicates various statuses in the peripheral control mode. Port 1 status and port 2 status indicate the peripheral connection status of each port. The ID and peripheral data of the connected peripheral are output to port 1 data and port 2 data. When a peripheral is directly connected to the peripheral port, the peripheral data for one unit is output. When multiple taps are connected, peripheral data for the number of taps is output.