EG_COMMAND
bus_space_write_1(iot, ioh, EG_COMMAND, b);
pcb[0] = bus_space_read_1(iot, ioh, EG_COMMAND);
pcb[1] = bus_space_read_1(iot, ioh, EG_COMMAND);
pcb[2+i] = bus_space_read_1(iot, ioh, EG_COMMAND);
if (bus_space_read_1(iot, ioh, EG_COMMAND) != pcb[1] + 2) {